MAP sensor performance on Audi 2.0 TSI/TFSI and 2.0 TDI — same VAG MAP/IAT sensor failures as VW, plus PCV diaphragm issues on EA888.
Audi P0106 — MAP sensor performance on Audi 2.0 TSI/TFSI and 2.0 TDI — same VAG MAP/IAT sensor failures as VW, plus PCV diaphragm issues on EA888. Typical UK independent garage cost: £100–£360.
What actually causes P0106 on a Audi
Audi shares the Bosch MAP/IAT sensor with VW EA888 engines — fails consistently between 60k and 90k miles. On EA113 (older A4 B7 2.0 TFSI) the issue is more often a leaking PCV valve diaphragm causing a large vacuum leak that skews MAP readings. 2.0 TDI Audis with P0106 are usually charge-pipe leaks.
Audi engines that log P0106
- 2.0 TFSI EA888 (A4, A5, A6, Q5)
- 2.0 TFSI EA113 (A3, A4, S3)
- 2.0 TDI CR (A3, A4, A6, Q5)
How we diagnose P0106 on a Audi
- VCDS — log MAP sensor voltage and IAT during driving
- Inspect PCV valve top (EA113 2.0 TFSI) and intake hoses
- Pressure-test intake for leaks
- Replace MAP/IAT sensor on EA888 over 60k miles
- Walnut-blast intake if engine has heavy carbon deposits (separate issue but worth doing together)
The common misdiagnosis to avoid
Audi dealers will quote a 'complete fuel and air system diagnostic' (£250–£400) — bypass it by asking your indie to swap the MAP sensor first if the car is over 60,000 miles.
Audi P0106 repair cost in the UK
Expect £100–£360 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
On EA888 2.0 TFSI, the MAP/IAT sensor and PCV valve are the 'service items' your customer never knew existed — quote them together if both are due, customer accepts one bill of £200 instead of two bills of £130.
Codes usually seen alongside P0106 on Audi
- P0299
- P00BD
- P00BC
Symptoms drivers report with P0106
- Sudden loss of power on a motorway slip road — car drops into limp mode at exactly the point you plant the throttle
- Full power returns after a key-off / key-on cycle, then disappears again 10–20 miles later
- Whistling, hissing or a chuff-chuff noise from the engine bay under acceleration
- Slight oil mist around intercooler pipework or a stain on the underside of the bonnet
- MPG drops 4–8 mpg within a tankful, sometimes with faint black smoke on hard acceleration
- Sometimes paired with P0299 (underboost), P0234 (overboost), or P0401 (EGR flow)
Repairs that clear P0106
- Clean or replace MAP sensor
- Smoke-test intake and boost pipes
- Check EGR isn't stuck open
For the generic, all-makes explanation of this code — meaning, every known cause and UK cost bands — see our P0106 guide.