P0008 on Audi: How to Diagnose & Fix
Engine Position System Performance - Bank 1
1 Audi model · 1 documented issue · 1 critical · $2,500-$6,000 repair
P0008 on Audi by model: symptoms, diagnosis and fix
The D3-generation S8 uses the 5.2L FSI V10 (shared lineage with the Lamborghini Gallardo/R8 V10). Its timing is driven by chains with plastic guides and hydraulic tensioners located at the rear of the engine. Over time and with deferred oil changes, the tensioners and guides wear, producing a rattle on cold startup that can persist. If a guide breaks or the chain skips, valve-to-piston contact can cause catastrophic engine damage. Access is poor (rear of the V10), making this an engine-out-level job and one of the most expensive risks on the D3 S8.
Common Symptoms
- Rattle from engine on cold startup
- Metallic chain noise from rear of engine
- Rough running or misfire if timing has shifted
- Check engine light for camshaft/crankshaft correlation
How to Fix
Investigate any cold-start rattle promptly: inspect tensioner travel and guide condition. Replace the timing chains, tensioners, and plastic guides as a set with updated genuine parts; this is a major, labor-intensive repair (often engine-out). Strictly follow short oil-change intervals with the correct grade to maximize tensioner/guide life, and address any low-oil-pressure condition immediately. Do not drive a V10 with a persistent timing rattle.
Sources for this issue (2)
P0008 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0008 mean on a Audi?
P0008 stands for "Engine Position System Performance - Bank 1." P0008 means the engine computer detected that Bank 1 of the engine is timed incorrectly relative to where it should be — specifically, the relationship between the crankshaft and camshaft positions on that bank is off. The 'Engine Position System' refers to the components (timing chain/belt, sprockets, tensioners, and the variable valve timing actuators) that keep the camshafts synchronized with the crankshaft. When the computer commands a timing position but the sensors report the bank is out of the expected range, it sets this code. It generally signals a mechanical timing problem on Bank 1 that can affect performance and, if severe, risk internal engine damage. On Audi it is documented across 1 model: S8.
What are the most common causes of P0008?
The most common causes of P0008 are: Stretched or worn timing chain, Failed or worn timing chain guides or tensioner, Faulty camshaft position (VVT/VCT) actuator or solenoid, Low or dirty engine oil affecting timing actuator operation, Jumped or mistimed timing chain/belt after service, Faulty crankshaft or camshaft position sensor, Clogged oil control valve or oil passages. The specific cause varies by vehicle.
How much does it cost to fix P0008 on a Audi?
Published repair estimates on Audi range from $2,500 to $6,000 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.