Fuel rail pressure too low on Renault — 1.5 dCi K9K and 1.6 dCi R9M lift pump / DRV.
Renault P0087 — Fuel rail pressure too low on Renault — 1.5 dCi K9K and 1.6 dCi R9M lift pump / DRV. Typical UK independent garage cost: £180–£1300.
What actually causes P0087 on a Renault
Renault dCi P0087 is overwhelmingly the in-tank pump on Clio/Megane — a known weak point from 80k. K9K timing belts in oil bath (newer engines) introduce a separate contamination risk.
Renault engines that log P0087
- 1.5 dCi K9K (Clio/Megane/Captur)
- 1.6 dCi R9M (Megane/Kadjar)
- 2.0 dCi M9R (Trafic)
How we diagnose P0087 on a Renault
- Lift pump pressure
- Filter swarf
- Belt-in-oil debris check on newer K9K
- DRV test
The common misdiagnosis to avoid
Renault K9K with belt-in-oil running long intervals — debris in the pump can mimic wear; always inspect.
Renault P0087 repair cost in the UK
Expect £180–£1300 including parts and labour at an independent garage. Main-dealer quotes on Renault are usually higher for the same job, and the spread exists because the cheap cause and the expensive cause throw the same code — pay for the diagnosis before you pay for parts.
Bob's workshop tip
Clio K9K P0087 — start with the in-tank pump. £180 fitted, job done.
Codes usually seen alongside P0087 on Renault
- P0088
- P0089
Symptoms drivers report with P0087
- Sudden loss of power on the motorway — car drops into limp mode at exactly 2,500 RPM
- Restarts fine after a key-cycle, then relimps under load 20 minutes later
- Hard cold-starting: cranks for 4–6 seconds before catching
- Uneven idle with a diesel-knock 'nail' from cold
- MPG drops 3–7 mpg before the light even comes on
- Metal glitter in the fuel filter housing = CP4 pump has already grenaded
Repairs that clear P0087
- Replace fuel filter first (cheap, fast)
- Test rail pressure with scan tool
- Injector leak-off test (diesel)
- Replace HPFP only if proven by pressure test
For the generic, all-makes explanation of this code — meaning, every known cause and UK cost bands — see our P0087 guide.