NHC MOTORS · 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.

The 2017 Flying Spur, in for a leak inspection

2017 Bentley Flying Spur

A 2017 Bentley Flying Spur came in for a leak inspection. There were traces at a pipe joint under the engine, and we replaced the water pump (coolant pump) during this visit.

Reaching the pump meant taking off the front panel, lights and fenders. Before starting, we checked which nearby parts were worth servicing while that work space was open, so a small seal would not bring the same labor bill again.

01 / NHC MOTORS

Getting to the water pump meant opening up the front

There were leak traces at a pipe joint under the engine. Oil can run down from a connection above, so the upper connections need checking too. Coolers and pipes are packed together in front of the Flying Spur’s engine, leaving little access to the inner joints from below.

We removed the front bumper, panel, lights and fenders in turn. That exposed the front cooler and gave us room to work at the front of the engine. On this car, taking the front apart and putting it back together accounts for a substantial share of the labor.

Traces at a pipe joint under the engine. Where fluid collects may not be where the leak starts.

Front cooler exposed after removing the bumper

Room to work at the front of the engine after removing the front components

02 / NHC MOTORS

We replaced the seals and gasket while the front was open

If a nearby O-ring or seal begins to leak after a pump-only replacement, the whole front has to come off again. That repeat labor can cost more than the parts, so we check the condition of the surrounding seals and components before closing it up.

We checked parts that belong in the same work area, including the thermostat, before the job. We replaced the water pump, two O-rings at the coolant connections, two joint seals and the oil cooler gasket. The removed parts and new seals were compared for size and shape before assembly.

Housing and pipe connection parts removed from the front of the engine

Comparing the new seals with the removed ones before assembly

03 / NHC MOTORS

We checked for leaks before closing up the front

After reconnecting the cooling system, we used vacuum equipment to check for leaks before the front was fully reassembled. Finding one after everything was back in place would mean taking the front apart again.

We filled the system with coolant that meets the vehicle's specification. Opening the cooling circuit can leave air in the lines; trapped air can disrupt circulation, raise temperatures or cause the level to fall later. We bled the air from the system as part of the job.

Gauge and hoses connected to the cooling system

04 / NHC MOTORS

We also recharged the A/C and filled the hydraulic system

We also recharged the air conditioning refrigerant and filled the hydraulic system with oil to its specification.

How we reached the inner joints on the Flying Spur

Leak inspection

Check traces at the pipe joint under the engine

Front-end removal

Remove the front bumper, panel, lights and fenders

Pump and seals

Replace the water pump, O-rings, seals and oil cooler gasket

Leak check

Use vacuum equipment during reassembly, then bleed the air and recharge the refrigerant

Frequently asked questions

Why remove the lights and fenders to replace a water pump?

The coolers and pipes are layered at the front of this Flying Spur's engine. Removing the front panel, lights and fenders makes the room needed to reach the water pump; that disassembly and reassembly is a major part of the labor.

Can't you replace just the water pump?

A later leak at a nearby O-ring, seal or thermostat would mean removing the front again. We checked those parts before starting this job, then replaced the pump, O-rings, seals and oil cooler gasket that were included in the work.

If coolant is leaking or the level keeps falling

If you see a leak or find yourself topping up coolant more often, we will first trace where the fluid is coming from. If the front has to come apart, we will explain the nearby parts worth servicing and the labor involved before work begins.

We explain the work and estimate before proceeding with your consent.

Call for service advice Book via Naver

031-258-1617 · NHC Motors, Suwon · By appointment

Published 2026-09-24