Idle speed higher than expected on Audi — vacuum leak from PCV / cracked intake hoses on 1.8/2.0 TFSI.
Audi P0507 — Idle speed higher than expected on Audi — vacuum leak from PCV / cracked intake hoses on 1.8/2.0 TFSI. Typical UK independent garage cost: £140–£480.
What actually causes P0507 on a Audi
Audi P0507 is overwhelmingly a vacuum leak — PCV diaphragm cracked in the rocker cover, split intake hose, or oil filler seal failed. EA888 Gen2 PCV failure is documented.
Audi engines that log P0507
- 1.8/2.0 TFSI EA888 Gen2/Gen3
- 1.4 TSI EA211
- 2.0 TDI CR (less common)
How we diagnose P0507 on a Audi
- Smoke-test full intake
- Listen at oil filler cap for suction
- Inspect rocker cover PCV diaphragm
- Replace whole rocker cover on Gen2 if integrated
The common misdiagnosis to avoid
Don't replace the throttle body — VAG throttles rarely fail. PCV/intake leak almost always.
Audi P0507 repair cost in the UK
Expect £140–£480 including parts and labour at an independent garage. Main-dealer quotes on Audi 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
EA888 Gen2 P0507 — rocker cover with integrated PCV is the proper fix. Half-jobs come back.
Codes usually seen alongside P0507 on Audi
- P0171
- P0174
Symptoms drivers report with P0507
- The car feels like it's 'creeping' forward too fast at traffic lights without touching the gas.
- Engine revs stay hung up at 1200rpm when you dip the clutch approaching an intersection.
- A noticeable 'hissing' or whistling noise from the engine bay when idling on the driveway.
- The stop-start system has stopped working because the idle isn't stable enough for the ECU.
- Surging or 'hunting' revs when you first start it from cold in the morning.
Repairs that clear P0507
- Smoke-test intake
- Clean throttle body
- Replace PCV valve / rocker cover
- Inspect all vacuum hoses
For the generic, all-makes explanation of this code — meaning, every known cause and UK cost bands — see our P0507 guide.