Audi P2015: Intake Manifold Flap Signal Implausible
P2015 means the Bank 1 intake manifold runner (swirl) flap position sensor is sending a value the ECU cannot trust, so the flap may not be where it is commanded to be. Most common causes are a worn flap linkage or stop, a failed flap motor V157, or a corroded N316 changeover valve. This shows up on Audi 2.0 TFSI engines like the A4, A5, A6, Q5 and TT.
Quick facts
- System
- Engine / Intake Manifold
- Severity
- Moderate
- Can you still drive?
- Short drives only, diagnose soon
- Applies to
- Audi 2.0 TFSI/TSI EA888 petrol engines. Audi TSB coverage cited for 2010-2016 2.0L A3, A4, A5, A5 Cabriolet, A6, A7, Q3, Q5 and TT, and owner reports confirm it on A3 8P, A4 B8 ...
Also shown by some scanners as: P201500, P2015 00, 18447, 008213
Symptoms
- Check engine light on, often the only sign at first
- Loss of power or limp mode on some cars
- Rough or uneven idle
- Hesitation when accelerating, worst at low rpm
- Higher fuel consumption
Common causes, most likely first
- 1
Intake manifold runner flap linkage or plastic stop worn out
Most common cause, lets the flap travel past its intended range
- 2
Intake Manifold Flap Motor V157 stuck or failed
Position sensor G336 sits inside the same unit, so the motor and sensor usually fail together
- 3
Changeover valve for intake manifold flap N316 corroded or failed
Subject of an Audi TSB, sometimes paired with an ECM software update
- 4
Flaps sticking from carbon and oil deposit build-up inside the manifold
- 5
Damaged wiring or a poor connector at the flap motor
- 6
Outdated or faulty ECM software, or basic settings never completed after an earlier repair
Forum reports show P2015 returning when this adaptation step is skipped after a parts swap
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Frequently asked questions
Can I still drive with a P2015 code?
It is not an immediate safety fault and the car will usually still drive, but expect reduced power, possible limp mode and worse fuel consumption. It will not pass an emissions check either. Get it diagnosed soon rather than living with it, because a flap stuck in the wrong position keeps the engine running outside its intended airflow map.
Is it always the flap motor?
Not always. The flap motor V157 with its built-in position sensor is a common cause, but a worn linkage or plastic stop, a corroded N316 changeover valve, carbon buildup, wiring problems or even ECM software can trigger the same code. A proper diagnostic read is needed to confirm which part is actually at fault before buying anything.
How do I fix a P2015 code?
Depending on what the diagnostic finds, the fix is usually a used intake manifold assembly (the revised version is commonly cited as the lasting solution), a used flap motor V157 with its built-in position sensor, or the N316 changeover valve, sometimes with a new gasket set. Basic settings or adaptation is typically required afterward. WhatsApp us the code and car model for stock and today's price.
Which Audi models does P2015 apply to?
This applies to Audi 2.0 TFSI/TSI EA888 petrol engines, with confirmed coverage on the A3, A4, A5, A5 Cabriolet, A6, A7, Q3, Q5 and TT built between 2010 and 2016, and owner reports on the A3 8P, A4 B8 and B8.5, and Q5 specifically. It is also seen on the 3.0 TFSI S5, and separately on VW group cars sharing the same engine family, though the 2.0 TDI diesel version uses a different manifold design and different repair parts.