Repair Cases
Explore the work performed on each car through workshop photographs and available service or measurement records.
Tyres · wheel repair · alignment
Mercedes-Benz E300: vibration after repeated balancing — tyre replacement and wheel straightening
Vibration remained at 90–100 km/h after repeated balancing. We measured the wheel and tyre assemblies, repaired the rims and replaced the front tyres, then checked the car on the road again.
Suspension · wheels/tires · ride comfort
Hyundai Veloster JS: refining ride comfort after a satisfying alignment service
Satisfied with the September alignment, this Veloster JS returned for suspension, wheel and tire refinement, steering replacement, loaded bushing tightening and final alignment with a customer road test.
Alignment · RFV matching
Rolls-Royce Cullinan An uncomfortable ride after the change to 23 inches
This Cullinan became much less comfortable after a conversion from factory 22-inch to 23-inch wheels. A drive with the customer revealed body movement and vibration, followed by alignment at a consistent ride height and four-wheel RFV matching.
Tyre vibration · pulling · warranty support
Work date
Porsche Cayenne: why did new tyres make the drive less comfortable?
New tyres should make the drive better. On this Cayenne, they made it less comfortable. The owner and our workshop went back to the car time and again.
Oil service · wheel inspection
BMW M5: service and recheck after wheel repair
Annual service and follow-up for a 2020 BMW M5 F90. Engine and driveline fluids were serviced at 21,503 km. After wheel repair, we rechecked road force and lateral force and adjusted the custom alignment. One rear tire will be re-measured after driving.
Five-year maintenance · alignment
BMW M5 Five-Year Maintenance & Alignment History
Five years of BMW M5 care, from 2022 to 2026. Compare annual oil and cooling-system work, mileage, and alignment measurements.
Service record
Work date
BMW F10 brake fluid service: low mileage still needs care
It is easy to remember engine oil and forget when brake fluid was last changed. Low mileage does not mean it can stay in service indefinitely. This 2013 BMW F10 had its engine oil and brake fluid changed together.
Service record
Work date
BMW X3 at 165,522km: what should an oil service include?
What else deserves attention when an X3 has covered more than 160,000km? This 2020 X3 20d received Shell engine oil and a new filter at 165,522km. We also looked around the belt, pulleys and underside.
Oil & routine care
Work date
Kia K3 engine oil service: checking the level and filter too
If an oil service is due, start by checking how far you have driven since the last one. This 2019 K3 received an oil and filter change at 46,343km, after a dipstick check.
Service record
Work date
Mercedes-Benz E300: is replacing an inner-worn tyre enough?
This E300 had covered over 110,000 km, with pronounced wear on the inner tyre shoulder. The visit combined tyre replacement, inner-wheel cleaning, Road Force measurement and alignment with transmission and differential fluid service.
Service record
Work date
A long-stored Cayenne GTS: cracked tyres and a pull to the right
This 2008 Cayenne 4.8 GTS belongs to a customer who has several vehicles maintained at NHC. After a long period parked, the tyres had developed cracks and the car pulled right when driven. No oil leaks were found. We checked the tyres and alignment, changed the engine oil and discussed regular checks even when a vehicle sees little use.
Service record
Work date
Volvo XC60: what followed the inspection—tyres and driveline fluids
Following its earlier full inspection, this XC60 returned for tyres and driveline fluids. We selected tyres with ride comfort in mind, completed RFV matching and adjusted alignment. The remaining noise needs further checks around the mounts and suspension.
Service record
Work date
Mercedes-Benz E450 after purchase: radiator replacement and new-tyre RFV checks
Where should maintenance start after buying a used car? This E450 visit included a genuine radiator, cooling-system service and fluids. All four tyres were replaced, their RFV readings were addressed, and the work finished with alignment and another road test.
Service record
Work date
An S350 alignment problem resolved—and a relationship that grew to include the family’s Volvo
The first visit was for alignment. After NHC resolved a problem that had persisted despite repeated adjustments at several workshops, the owner entrusted us with a comprehensive inspection and the family’s Volvo. This time, the S350 returned for alignment after substantial suspension replacement at the dealer, supported by evidence from that inspection.
Service record
Work date
BMW G30 tyres and TPMS: alignment after fitting new tyres
Wheel alignment matters if new tyres are to wear well. This 2018 BMW G30 received Goodyear EfficientGrip tyres and replacement TPMS sensors, followed by Road Force measurement and front and rear toe adjustment.
Service record
Work date
Range Rover Sport oil service: spotting a leak and planning brake pads
An oil service also identified a leak and the next brake pad replacement. On this 2016 Range Rover Sport 3.0D, we found an oil filter housing leak and recommended pads in approximately 5,000km.
Alignment · Road Force
Work date
Veloster JS Pull and Ride Inspection: Alignment and RFV Adjustment
A 2019 Hyundai Veloster JS at 167,348 km. After air suspension and widebody tuning the owner still felt a pull to the right and heavy steering, so we checked the current setup and adjusted rear toe and RFV, leaving the remaining work scheduled.
Oil service · pads · inspection
Work date
Land Rover Discovery 4 Oil Service with Front Pad and Filter Checks
A Land Rover Discovery 4 diesel at 110,895 km. Engine oil and oil filter change, plus front brake pads, air filter and cabin filter checked against the previous visit to decide what to replace now and what can wait.
Tyres · RFV · alignment
Work date
Hyundai Grandeur GN7 Tyres, Road Force Matching & Alignment
Grandeur GN7 tyre fitting with Road Force matching from 9.0 to 4.0 kg and four-wheel alignment for an owner sensitive to small changes in driving feel.
Oil service · coolant inspection
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BMW 320d GT oil service reveals coolant leak traces
2014 BMW 320d GT oil service at 245,432 km: coolant traces inspected with a borescope, filters replaced and further coolant checks recommended.
Wheel repair · road force
Work date
2023 X6 30d · Vibration after new tyres
A 2023 X6 30d developed vibration above 90 km/h right after new tires. We checked wheel runout, road force matching, hub mating surfaces and alignment in order.
Dampers · alignment
Work date
An X6 with over 200,000 km: new dampers, ride-height tightening and alignment
2012 BMW X6 30d at 202,193 km: Bilstein dampers, ride-height tightening, alignment measurements and follow-up wheel and oil-leak advice.
Pulling · alignment
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Grand Koleos: correcting the wheel just to drive straight
A 2025 Grand Koleos with left pull: measured toe before and after, steering-centre adjustment and road-test results.
BMW X6 M50i
Work date
BMW X6 M50i pulling and vibration: alignment and road-force inspection
BMW X6 M50i pulling and vibration: measured alignment changes, road-force checks and a post-work road test at NHC Motors in Suwon.
Service record
BMW X5: inspect the mounts before replacing the complete struts
Do struts and mounts always need replacing together? On this X5, we dismantled the strut assemblies and replaced the mounts and rubber mounts. The vehicle was a 2011 X5 35i with 113,351km on the odometer.
Mercedes-Benz GLK 220
Work date
GLK 220 vibration and chassis noise: inspecting the wheels and suspension together
A 2013 Mercedes-Benz GLK 220 with approximately 184,000 km: right-front and right-rear wheel bend repairs, toe adjustment, road force checks, stabilizer link replacement and follow-up for oil traces and coolant loss.
K9 · 44,709 km
Work date
Kia K9 — tyre replacement and wheel checks
Towed after a puncture · four Goodyear tyres · final RFV 6.5 kgf · alignment · remaining wheel bend
Service record
Panamera GTS brakes: which pads and discs need replacing?
Worn pads do not automatically mean every disc needs replacing. We assess pad material, disc wear and damage together. This 2015 Panamera 4.8 GTS, with 91,188km recorded, received front and rear pads and rear discs.
Service record
BMW X6 air conditioning: condenser and connection servicing
If the air conditioning is weak, is a refrigerant top-up enough? Refrigerant loss and component condition need investigation. This 2010 X6 30d, with 310,899km recorded, received a condenser replacement along with pipe-connection and refrigerant-circuit work.
Service record
BMW 750Li: checking coolant and lighting during an oil service
As a car ages, there may be more to address than an oil change. This 2005 BMW 750Li received an engine oil and filter change, cooling-system pressure check, cap inspection and angel-eye lighting work.
Service record
MINI Cooper S transmission oil: the job continues after refilling
Transmission oil is not changed as often as engine oil, so using the correct fluid and completing the required procedures both matter. We serviced this 2020 MINI Cooper S at 54,415km using BG MAX equipment and completed the oil-wear reset with a diagnostic tool.
DB11 V8 · 2018
Aston Martin DB11 — pulling and vibration
Two wheel repairs · alignment and loaded balancing
Pre-purchase inspection
Work date
Porsche Macan S · pre-purchase inspection
Brake and fluid maintenance; monitoring oil traces
Service record
Korando C lower arms: replacement followed by wheel alignment
Does suspension work end with new lower arms? Components that locate the wheels also affect alignment. After replacing this Korando C's lower arms, front toe was adjusted from 1.5mm left and 3.4mm right to 0.0mm on both sides.
Coilovers · ride height · alignment
BMW G42 M240i — coilovers and ride setup
Lower stance and comfortable ride · joint road test
Alignment · Road Force testing
Work date
Mercedes CLA 250 — Steering Vibration and Off-centre Wheel
Recorded toe changes and seized tie rods requiring replacement
Tyres · suspension · alignment
Kia K8 — pulling, vibration and road noise
Rear thrust −0.17° → 0.00° · final accompanied road test
Bushing tightening · Ride-height calibration
Work date
Range Rover Sport — Harsh Ride and Steering Vibration
Measured height changes and road-test observations
Pre-purchase total inspection
Audi A7 — Oil Leaks Before Purchase
86,069 km · Repair terms and maintenance budget
Total vehicle inspection
Work date
Volvo XC60 — Low Voltage and Tyre Wear
89,754 km · Completed work and the next service priorities
Service record
BMW 528i: replacing the valve cover before refilling the oil
Repairing an oil-leak path and changing oil on time are separate maintenance tasks. This 2015 BMW 528i received a new valve cover, Shell Helix Ultra 5W-30 engine oil and filter, BG MOA treatment and a brake-fluid change.
Service record
Volvo V60 timing belt: plan replacement before failure
Even when oil is changed regularly, timing-belt history can be overlooked. This 2017 Volvo V60 received a timing belt, rollers and water pump, followed by coolant work. Front and rear brake pads were replaced during the same visit.
Service record
Lexus ES350: tyres, steering repairs and final alignment
New tyres also deserve a check of the components that locate and steer the wheels. This ES350 received tyre and Road Force work, followed by CV-boot and steering-gear replacement. Alignment was measured again and toe adjusted at the end.
Service record
Audi SQ8: an oil service is also a chance to inspect the car
With the SQ8 on a lift for its oil service, we checked areas that are difficult to see during everyday use. Alongside the oil and filters, we inspected the coolant, underside of the drivetrain and cabin filtration.
Service record
Range Rover Sport SVR still pulling left after alignment: checking the tyres
We checked the vehicle's handling alongside its fluid service. Alignment was adjusted, but the road test still showed a leftward pull. We continued with tyre testing under load and match mounting.
Service record
BMW X3 approaching 100,000km: checks alongside an oil service
At 97,891km, this X3 came in for an oil service. We inspected the filter and drained oil and replaced the cabin filter. Filters and surrounding components are checked during the same visit.
Service record
BMW 740Li coolant leak: hose replacement and cooling-system care
Is topping up enough when coolant keeps falling? A noticeable loss in a closed cooling system needs investigation. This 2016 BMW 740Li received a new coolant hose, BG cooling-system cleaning, then NorthSea Glacier Antifreeze XL coolant and BG Super Cool.
Service record
CLS63 AMG: vibration through the steering wheel and seat at speed
Vibration remained at higher speeds after repairing the bent wheel. Tyre replacement substantially improved the driving vibration. Brake judder and suspension noise while steering were investigated separately.
Service record
Jeep Compass: alternator bearing play and auxiliary belt service
The removed alternator showed bearing play. We also inspected the pulleys and tensioner driven by the same belt and replaced the auxiliary belt set.
Service record
BMW 120d: unsure where to start with maintenance?
We inspected this BMW 120d from the battery and underside to its brakes and tyres. The battery needed charging, and there were marks inside the undertray to investigate. Brake fluid, differential oil and transmission fluid were also serviced.
Service record
Range Rover Vogue: air-strut replacement followed by alignment
After replacing the passenger-side air strut, we checked all four wheels. Suspension parts had been disconnected, so wheel alignment needed checking after reassembly.
Service record
Maserati Quattroporte pre-purchase inspection: the condition of a car left sitting
Before a buyer signed for a used 2016 Quattroporte, we inspected it. With cobwebs throughout, coolant below the MIN line and oils and fluids due for replacement, we suggested weighing those findings against the price.
Service record
Lexus NX Michelin tires: Road Force adjusted again after the test drive
We fitted the four Michelin tires the owner requested and matched them on a Road Force machine. After the high-speed test drive changed the readings, we measured and adjusted them again before release.
Service record
S350 at 260,000km: AdBlue tank and suspension work
This S350 had travelled about 260,000km. We serviced the AdBlue tank and suspension bushes and checked alignment, wheels and tyres.
Service record
E350 suspension service: checking alignment after replacing parts
This E350 came in with suspension noise. We compared the removed arms and bushings with their replacements and serviced the strut components. After assembly, the front toe readings were substantially out, so we adjusted the wheel alignment as well.
Wheel repair & road force
Mercedes-Benz E450 Coupe: cracked and bent wheels after a tire blowout
A tire blew out of town and was replaced locally. We found a crack in the front right wheel and bends in the others, then repaired each problem separately.
Service record
Toyota Sienna: Road Force resolved the vibration left after alignment
We adjusted the alignment on a Sienna that had already been aligned elsewhere. The owner then reported better fuel economy. Road Force work on a return visit resolved the remaining tire vibration.
Service record
BMW 535i GT transmission overhaul and an EMF that locked on the tow truck
The 2010 535i GT would not shift. We opened the transmission and found a broken metal part inside, then completed the overhaul and replaced the torque converter. Its electronic parking brake locked on the tow truck and is scheduled for replacement after Chuseok.
Service record
Hyundai Grandeur IG alignment: rear toe differed on a green screen
All four initial readings were within specification, but rear toe differed left to right. We narrowed that gap and measured the wheels and tires separately on a Road Force machine.
Service record
BMW M5 engine and differential oil service, with tires nearing replacement
A 2013 M5 that is driven little but serviced on a time-based schedule. We replaced the engine oil and filter and the rear differential oil, and found no oil or coolant leaks. With the tires cracking and low on tread, we recommended getting replacements ready in advance.
Service record
BMW 8 Series: why is the driver's side a different temperature?
This 8 Series had a left-to-right temperature difference of more than 10°C. The driver's air-conditioning flap was not operating correctly, and an attempt to initialise it revealed a BDC communication problem. After restoring communication, we initialised the flap and restored its operation.
Service record
BMW X5 E70 in our care for over 10 years: preventive spark plug and coil replacement
An X5 we have looked after for more than ten years. As planned at the last oil change, we replaced all six spark plugs and all six coils preventively on this visit.
Service record
BMW 528i F10 Differential, Transfer Case Oil and Coolant Change
We changed the front and rear differential oil and the transfer case oil separately, then flushed the cooling lines and replaced the coolant.
Service record
Jaguar E-PACE post-purchase inspection and solenoid replacement
A post-purchase inspection on a 2018 E-PACE bought at a good price. In response to camshaft-related codes, we replaced two control valve solenoids and serviced the oils and filters. If the warning returns, the cam adjuster system will need further inspection.
Service record
Volkswagen Passat intake flap and cooling fan repair, with carbon removed from the valves
The intake-manifold flap and one cooling fan had failed on this 2009 Passat. We replaced the manifold and gasket, changed both cooling fans, and removed the carbon on the intake valves with walnut blasting.
Suspension · alignment
Work date
Bentley Flying Spur: ride-height tightening, subframe adjustment and wheel alignment
A 2021 Flying Spur at 64,024 km: subframe adjustment, suspension tightening, before-and-after alignment readings and tyre road-force checks.
Service record
Mercedes E-Class W213 front and rear pads and wear sensors: discs checked separately
We replaced the front and rear brake pads and wear sensors, and treated the contact areas to help prevent noise. The discs need their own assessment rather than an automatic replacement with the pads.
Service record
BMW X6: four new tyres, wheel alignment and the change in front and rear toe
We fitted four all-season tyres and carried out Road Force balancing on the front wheels. Two alignment screens taken later the same day show how the left and right toe readings changed.
Service record
Mercedes CLS400d: engine, transmission and brake fluids, each changed its own way
We changed the engine oil and filter, transmission fluid and brake fluid using methods suited to their respective systems. Cabin filters and tyre pressures were also addressed in the vehicle's service history.
Service record
BMW X3 20d: cracked coupling, used propeller shaft and transmission mount replaced
We replaced the cracked shaft coupling with a new part, fitted a used replacement propeller shaft and changed the transmission mount. The rear-spring and alignment work on 18 August was a separate earlier visit.
Service record
Bentley Flying Spur water pump replacement: what we serviced while the front was apart
Replacing the water pump on this 2017 Flying Spur meant removing the front panel, lights and fenders. We also replaced the O-rings, seals and oil cooler gasket while it was apart, and checked for leaks with vacuum equipment during reassembly.
Service record
Volkswagen Tiguan Timing Belt Kit and Water Pump Replacement
We opened up the side of the engine to replace the timing belt and surrounding components, then refilled the coolant after the water pump work.
Service record
Mercedes-Benz GLE350d Engine Oil, Oil Filter and Cabin Filter Replacement
We replaced the engine oil and oil filter, and also looked after the cabin filters and tire pressure.
Service record
Mercedes-AMG G63 engine oil service: a new filter and drain washer
On this 2020 Mercedes-AMG G63, we used MOTOREX FS-P 0W-40, replaced the oil filter and drain washer, added BG MOA, topped up washer fluid and adjusted tire pressures. The service display showed 15,000 km afterward.
Service record
Mercedes-Benz E350d alternator replacement and careful reassembly of the surrounding pipes
At 237,819 km, this 2017 E350d W213 needed an alternator replacement. Access required removing surrounding pipes; we checked the intake-pipe seal during reassembly and refilled the opened coolant circuit with Mercedes-Benz coolant.
Service record
BMW 320d GT differential oil leak repair, followed by wheel alignment
Oil and dirt had built up on the rear differential housing of this 2015 BMW 320d GT F34. We removed the differential, replaced the pinion seal and left/right gasket sets, refilled it with PENTA LS 75W/90 and adjusted toe and rear thrust angle after refitting.
Service record
BMW X5 M50d F15 coolant connection repair and rear air-spring replacement
We removed the intercooler and intake manifold to reach the coolant connection behind them, then replaced the connecting pipe and seals. Intake deposits were cleaned separately, and both rear air springs were replaced with OEM parts.
Service record
Kia K8 coolant and brake fluid service, plus Road Force measurement
This 2021 Kia K8 received a cooling-system cleaning and coolant change, BG PF7 pulsed brake-fluid exchange and loaded wheel/tire measurement. On the machine’s placement screen, assembly number 4 had an RFV of 11.5 kg and was marked red.
Service record
2023 Kia K5 engine and transmission oil service with a BG fluid exchange
We replaced the engine oil and filters on this 2023 Kia K5, then exchanged the transmission fluid with a BG PXT machine. The equipment recorded the amount of new fluid supplied, and the scan tool displayed the transmission fluid temperature.
Service record
AMG GT 63 S Engine Oil Change: Low Mileage, but We Still Check the Tires
We changed the engine oil and oil filter on a 2020 AMG GT 63 S and added BG MOA. While the car was on the lift, we measured the tire tread and set the pressures to 34 psi front and 42 psi rear.
Service record
BMW 530i Driveshaft Boot and Seal Replacement with Wheel Alignment: What Total Toe Alone Misses
We serviced the driveshaft boots, seals and fluids on a 2019 BMW 530i. Rear total toe read 3.4mm both before and after adjustment, but the left and right values changed from 0.1mm and 3.3mm to 1.7mm and 1.7mm.
Service record
BMW 520d GT: Oil Traces Around the Rear Differential Found During an Engine Oil Change
While changing the engine oil and filter on a 2016 BMW 520d GT, we found a wet area around the rear differential. It shows why the underside is worth checking at every oil change.
Service record
BMW M340i Transmission Fluid Change: ZF Fluid, BG PXT Exchange and Temperature Check
We changed the transmission fluid in a 2020 M340i with ZF LifeguardFluid 8. Here we walk through the circulating exchange with the BG PXT machine and the temperature checks made during the work.
Service record
BMW 440i G22 Transmission Fluid Change with ZF LifeguardFluid 8 and BG PXT
We changed the automatic transmission fluid in a 2022 BMW 440i G22 at a total mileage of 44,941 km. We used ZF LifeguardFluid 8 and did a circulation exchange with BG PXT equipment connected.
Service record
Volvo S60 Fluid and Filter Service with Timing Belt and Water Pump Replacement
This S60 showed 96,572 km at the time of its engine oil service. We serviced the engine oil, filters and brake fluid, and replaced the timing belt, rollers and water pump, the accessory drive belt and tensioner, and the crankshaft front oil seal.
Service record
BMW X5 E70 30d: Front Toe at -10.1 and -10.5 mm After Front Suspension Replacement, Then a Four-Wheel Alignment
On a 2011 BMW X5 E70 30d, we replaced the front tension struts, lower control arms and tie rods on both sides and also replaced the front stabilizer link. After the parts replacement, front toe before adjustment was -10.1 and -10.5 mm. Using a HUNTER HawkEye Elite 3D system, we matched left and right at 1.2 mm front and 1.6 mm rear.
Service record
G4 Rexton 2.2 intake manifold and gasket replacement, P200A history code checked
We replaced the intake manifold and gasket on a 2018 G4 Rexton 2.2. The odometer read 188,522 km when the vehicle came in, and the scan tool showed P200A, a swirl valve control code, stored as a history code.
Service record
2019 Ford Mustang 5.0 transmission fluid service: valve body removal and new filter
We opened the transmission oil pan on a 2019 Ford Mustang 5.0, removed the valve body and installed a new filter. After reassembling the underside, we changed the transmission fluid by supplying FUCHS TITAN ATF 8400 ULV through an exchange machine.
Service record
Kia Mohave Transmission Fluid Change with Ride-Height Torquing, RFV and Alignment Care
On a 2022 Mohave, we replaced the transmission fluid and rear brake pads, and also carried out Road Force balancing, ride-height torquing and a wheel alignment. After the August 14 adjustment, toe measured 0.8mm and 0.7mm at the front and 1.1mm and 1.0mm at the rear.
Service record
BMW X7 40i Front Brake Pad, Disc and Wear Sensor Replacement
We replaced the front pads and discs on this 2023 X7 40i with new parts. We also replaced the pad wear sensor and applied a three-part brake-noise prevention set.
Service record
BMW X3 30d A/C compressor replacement and refrigerant charge: how it differs from a top-up
We replaced the A/C compressor on a 2015 BMW X3 30d and used a refrigerant machine to charge the system. We explain how removing the belt and refrigerant lines to reach the compressor differs from a refrigerant top-up.
Service record
BMW 525d GT filled with gasoline: rear seat removed to service the fuel tank and replace the fuel filter
This 2017 525d GT, a diesel, was mistakenly filled with gasoline. We removed the rear seat and interior trim to reach the fuel tank. We flushed out the mixed fuel, replaced the fuel filter and refilled with diesel. During the same visit we also changed the engine oil, the air filter and the cabin air filter.
Service record
Mercedes-Benz CLS400 Hub Bearing and Bent Wheel Repair with Alignment
On a 2017 CLS400, we replaced both front hub bearings and repaired bends in all four wheels. Wheel and tire load measurement and an alignment brought the toe into line, but the front camber still showed red.
Suspension · alignment
Work date
Audi TT Roadster 45: ride-height tightening, alignment and steering-angle calibration
A 2015 Audi TT Roadster 45 at 84,717 km: suspension specification checks, before-and-after toe readings, RFV measurements and steering-angle calibration.
Persistent right pull
Work date
Polestar 4 — New-Car Right Pull
Still pulling right after alignment
Third vehicle · rear thrust angle −0.04°→0.00°
Service record
Mercedes-Benz GLC63 S Intake Leak: Intercooler Removal and Boost Intake Hose Replacement
A 2019 GLC63 S came in with an intake leak on the passenger side. We removed the front components and the bank 1 intercooler to reach the bank 1 boost intake hose hidden behind them, and replaced the hose. The intercooler was then reinstalled.
Service record
2015 Bentley: Over 4 L of Engine Oil in the Cooling System, Oil Cooler Replacement and Flush
A 2015 Bentley in which an internal fault in the engine oil cooler let more than 4 L of engine oil into the cooling system. We lowered the engine to replace the oil cooler, then flushed the cooling system and cleaned the expansion tank.
Mulsanne Speed · 2023–2026
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Bentley Mulsanne Speed · 2023–2026 Maintenance Record
A single 2018 Bentley Mulsanne Speed maintained across four visits from August 2023 to August 2026. This record consolidates what we found and what we did at each visit.
Service record
Work date
Mercedes-Benz S350: looking beyond repeated alignment adjustments to the tyres
After several alignment visits elsewhere, the owner still had an unresolved driving concern. On 31 July, NHC checked both wheel alignment and tyre road-force variation. Resolving that first concern led to further inspections and care for the family’s Volvo.
Service record
Work date
BMW 320d GT Front & Rear Shock Replacement and Alignment
A BMW 320d GT with 241,916km on the clock. We replaced worn-out front and rear shocks, serviced mounts, boots and a front arm, and finished with a wheel alignment.
Suspension · alignment
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BMW M2 F87: ride-height tightening and restricted alignment adjustment
A 2019 BMW M2 F87: ride-height tightening, four-wheel alignment, RFV service and advice on restricted adjustment range.
Jaguar XJ · Daimler
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Daimler 4.2: treating pulling and brake judder together
Pulling and brake judder on a 140,134 km Daimler 4.2. Wheel repair videos, four-wheel toe adjustment, final road-force scans and a rear-left camber item to monitor.
Service record
Mercedes-Benz GLK Engine and Transmission Mount Replacement with RFV Measurement and Alignment
We replaced the engine and transmission mounts on a 2015 GLK and checked the wheel side separately with wheel and tire measurement and an alignment. Front camber and toe were adjusted; front-left caster of 9.62° remains in red and needs further checking.
Service record
Work date
BMW 730d Brake Judder: On-Car Disc Machining and Brake Fluid Service
A 2016 BMW 730d with 109,381 km came in with vibration under braking. After checking the disc friction surfaces and rust, we performed Hunter-style on-car disc machining and a brake fluid exchange.
Suspension · alignment
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Kia Mohave: shock absorber replacement, seized adjusters and alignment
A 2015 Mohave with shock absorber replacement, ride-height tightening, seized alignment adjusters, road-force measurements and before/after wheel geometry.
Suspension · alignment
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Range Rover Vogue 4.4d: ride-height calibration and four-wheel alignment
A 2017 Range Rover Vogue 4.4d: air-suspension height calibration, ride-height tightening and front/rear alignment measurements.
Differential repair
BMW F20 — Differential Noise After an Oil-Leak Repair
Post-repair road test: original noise not reproduced
Wheel care · runout · balancing
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Ferrari Roma — winter tyre replacement
Winter tyre fitting through final wheel fastening
Service record
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BMW 528i AGM Battery Test and Replacement
A 2015 BMW 528i whose battery measured 560CCA against a 950CCA rating on the Midtronics CPX900. We replaced it with a same-specification FIAMM ecoFORCE VR950 AGM battery.
Service record
Work date
BMW X6 M50d Coolant Leak: Water Pump and Thermostat Replacement
A 2016 BMW X6 M50d with 266,569 km came in with a coolant leak. We replaced the water pump and thermostat, cleaned the mating surfaces, and exchanged the coolant using BG MVP equipment.
DPF cleaning · inspection
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Mercedes-Benz GLK DPF cleaning: checking pressure after refitting
Does dark wash water leaving the DPF mean the job is finished? This GLK received off-car dry and wet cleaning, followed by an in-vehicle differential-pressure check. Further monitoring was agreed.
Engine oil · differential oil · brake fluid
AMG GT Black Series — fluids and alignment
Front toe matched at 1.7 mm · actual maintenance
Engine oil · differential oil · brake fluid
Ferrari 488 Pista — fluids and alignment
Fluids and spark plugs · front and rear toe
DPF cleaning · inspection
Work date
BMW 320d F30: DPF cleaning and flexible exhaust-joint replacement
Should the exhaust connection be left untouched during DPF cleaning? On this 320d, off-car dry and wet cleaning was accompanied by replacement of the flexible exhaust joint. The photos show both parts of the job.
812 Superfast · 2020
Ferrari 812 Superfast — alignment & brake fluid
Front toe difference 1.1 → 0.0mm · brake-fluid service
DB11 V12
Aston Martin DB11 V12 Total Inspection · Fluid Service and Repair Priorities — NHC Motors
An Aston Martin DB11 V12 total inspection at NHC Motors in Suwon: fluid samples, transmission and differential oil service, brake disc refinishing and follow-up of an underbody oil trace.
Huracán STO · 2023
Lamborghini Huracán STO — oil service & alignment
Eight oil drain points · original before/after measurements
Vantage · 2,840km
Work date
Aston Martin Vantage — wheel alignment
Front camber difference 0.44° → 0.01° · original measurements
Service record
Work date
Mercedes-Benz CLA Used-Car Inspection — Battery, Tyres & Oil
Intake inspection of a used Mercedes-Benz CLA at 44,818km. Battery and tyres were measured and kept on record, while engine oil, brake fluid and filters were replaced.
911 GT3 · 2025
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The Same 911 GT3 After a Year and 300 km · 2025 Service
2025 Porsche 911 GT3 service: fluid and filter maintenance after a year and about 300 km, with separate yearly and same-visit alignment comparisons.
G500
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Mercedes-Benz G500 · Oils and Filters After Purchase
A returning customer brought a directly imported G500 to NHC Motors for broad maintenance at approximately 48,000km. The aim was to look after the oils, filters and cooling system as they began owning the car.
G63 AMG
Mercedes-AMG G63 · Overheat History, Fluid and Cooling Care
A G63 AMG arrived for broad maintenance after an engine overheat warning had occurred. The instrument cluster showed 46,423km. We considered the cooling system alongside transmission and differential fluids, brake fluid and filters.
DPF cleaning · inspection
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Jaguar XF 20d DPF cleaning: removal, washing and follow-up
What should accompany DPF cleaning on a Jaguar XF? At 149,413 km, this car received a smoke test followed by off-car dry and wet cleaning, with subsequent monitoring agreed.
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BMW 520d Coolant Leak – Pressure Test and Hose Replacement
A 2011 BMW 520d with 144,855 km came in with a coolant leak. We located the problem with a Snap-on cooling system pressure tester, replaced the hose with a genuine BMW part, and refilled the coolant.
R8 Spyder
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Audi R8 Spyder · Broken Spring Repair and Brake Care
This 2013 Audi R8 Spyder felt unstable as the accelerator was pressed and released. We found a broken rear spring, replaced both rear springs, and reset the ride height and alignment. We machined the brake discs in March 2025, then fitted new discs and tyres on a later visit.
CN7 Hybrid · 2024
2024 Avante CN7 Hybrid — Evans coolant
Customer-reported 30.2 km/L · third car with Evans
911 GT3 · 2024
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Porsche 911 GT3 · 2024 Oil, Filter and Alignment Service
2024 Porsche 911 GT3 service: oil and filter replacement and measured alignment at about 2,500 km, including the remaining caster difference.
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Jeep Wrangler Rubicon Sticking Caliper — Brake & Alignment Service
A 2016 Jeep Wrangler Rubicon 3.6 whose front wheel would not spin freely even with the brake released. Front caliper and disc replacement, brake fluid service, steering linkage work and front toe adjustment.
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2012 BMW M3 E92 V8 Comprehensive Maintenance — Coolant Conversion, DCT, Ohlins Suspension, Alignment
Comprehensive maintenance on a 115,828 km 2012 BMW M3 E92: valve cover gasket, intake cleaning, water pump and thermostat with Evans coolant conversion, DCT pan filter with TITAN FFL4, on-car disc resurfacing, OHLINS suspension with bushings and links, and a full alignment over two weeks.
DPF cleaning · inspection
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BMW 520d at 217,319 km: DPF cleaning and exhaust-joint work
Does a DPF have to be replaced once a car passes 200,000 km? This 520d’s existing filter was removed for dry and wet cleaning at 217,319 km, with a flexible exhaust-joint replacement carried out as well.
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BMW 730d Front Air Strut Replacement with Diagnostic Air Fill
Front left air strut replacement on a 2016 BMW 730d. We checked the pressure state of the removed strut, compared old and new parts, installed the new strut, and completed the air fill with a diagnostic tool.
Wraith
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Rolls-Royce Wraith Engine Oil Service & Wheel Alignment
Engine oil and filter service on a 2018 Rolls-Royce Wraith, with measured alignment changes, a normal oil-level check and service indicator reset.
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BMW 118d Engine Oil and Brake Fluid Service With Basic Inspection
An engine oil and brake fluid service on a 2016 BMW 118d: removing and cleaning the oil filter housing, fitting a new filter, filling with Shell oil, exchanging the brake fluid, and checking the underbody.
Rolls-Royce Ghost
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Rolls-Royce Ghost: oil leak repairs, suspension arms and alignment
2014 Rolls-Royce Ghost oil leak repairs, engine oil pan and suspension arm replacement, followed by a no-leak check and wheel alignment before handover.
Measurements belong to the individual vehicle at the time of the work.
Additional cases are available in Korean — the Bentley Flying Spur (three cars) the Range Rover SDV8 differential, and the Mercedes G63 battery re-test (replaced elsewhere, re-tested at 925 CCA, normal); English versions are on the way. For the principle first, read the repeat-pull guide.
Can you check my car this way?
In Suwon we separate tire lateral force, four-wheel alignment, and the chassis in order, then confirm with before-and-after data and a ride-along test drive. NHC Motors, 524 Maesong-gosaek-ro, Gwonseon-gu, Suwon, Korea, by appointment only.
Call +82-31-258-1617 Book on NaverNHC Motors has serviced import and domestic cars in Gwonseon-gu, Suwon for nearly 30 years. Our wheel alignment and total-inspection methods are registered as two Korean patents (No. 10-2552759, No. 10-2646528), with USPTO and PCT applications in progress. We operate Hunter HawkEye 3D alignment and Road Force equipment.