P0015 indicates the exhaust camshaft on bank 1 is more retarded than the ECU commanded. The variable valve timing system for the exhaust cam is not adjusting properly, usually due to oil issues, a worn timing chain, or a failing VVT solenoid.
DTC/P0015·Audi
P0015 on Audi: Causes, Symptoms and Fix Cost
Quick Answer
Moderate SeveritySafe to drive (short-term)Audi
P0015 on a Audi indicates the exhaust camshaft on bank 1 is more retarded than the ECU commanded. The variable valve timing system for the exhaust cam is not adjusting properly, usually due to oil issues, a worn timing chain, or a failing VVT solenoid.
Repair cost on Audi€52 - €1690
What does P0015 mean on a Audi?
Audi A4
2008-2024The 2.0 TFSI (EA888) engine uses an exhaust camshaft adjuster that can fail due to oil sludge or a worn actuator. Audi recommends oil changes at 15,000 km but 10,000 km intervals are safer for turbo engines. The cam adjuster is at the rear of the cylinder head.
What causes P0015 on a Audi?
Beyond the generic causes listed on the main P0015 page, these are the Audi-specific patterns we see most often:
Audi A4Exhaust cam adjuster wear on 2.0 TFSI with extended oil change intervals
Audi A4Oil sludge blocking actuator oil passages
How to diagnose P0015 on a Audi with OBD2
Follow these steps to pinpoint the root cause of P0015:
- Check engine oil level and quality. Top up or change if the oil is low, dark, or overdue. Use the manufacturer-specified viscosity grade
- Use a scan tool to read exhaust camshaft position data. Compare the actual position to the target position - a persistent offset confirms the VVT system is not responding
- Inspect and test the exhaust VVT solenoid. Measure coil resistance and check for clogged filter screens. Replace if faulty
- Listen for chain rattle on cold starts. A brief rattle that stops after a few seconds indicates a worn chain tensioner. A persistent rattle suggests chain stretch
- If other causes are ruled out, check timing chain alignment marks to verify chain stretch and inspect the exhaust cam phaser for wear
How much does P0015 cost to fix on a Audi? (EUR)
Estimated repair costs on a Audi (Audi parts and labour typically run 30% above the average for this code).
Prices estimated as of May 2026. Costs vary by region, vehicle, and shop.
Related codes that often appear with P0015 on Audi
These codes commonly cluster with P0015 on Audi vehicles:
FAQ: P0015 on Audi
What does P0015 mean?
P0015 means the exhaust camshaft on bank 1 is staying in a more retarded position than the engine computer commanded. This affects engine efficiency, emissions, and performance because the exhaust valves are not opening and closing at the optimal time.
Is P0015 expensive to fix?
It depends on the cause. An oil change costs 40-110 EUR and solves many cases. A VVT solenoid replacement runs 80-270 EUR. If the timing chain is stretched, expect 470-1,300 EUR for chain, tensioner, and labour combined.
What is the difference between P0011 and P0015?
P0011 refers to the intake (A) camshaft being over-advanced, while P0015 refers to the exhaust (B) camshaft being over-retarded. Both indicate VVT system faults but on different camshafts. They can appear together if the timing chain is stretched.
Can low oil cause P0015?
Yes. The VVT system relies on oil pressure to adjust camshaft position. Low oil level, dirty oil, or incorrect oil viscosity can all prevent the exhaust camshaft from reaching its target position, directly triggering P0015.
Looking for the full P0015 reference (all makes, full diagnosis flow, complete repair cost matrix)?
See the main P0015 guideSkanyx · Audi
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