P0021 on Volkswagen: How to Diagnose & Fix
Intake Camshaft Position Timing - Over-Advanced (Bank 2)
1 Volkswagen model · 1 documented issue · 1 critical · $500-$4,000 repair
P0021 on Volkswagen by model: symptoms, diagnosis and fix
The 1.8T turbocharged engine in the B5/B5.5 Passat is notorious for oil sludge buildup that can block oil passages and starve the turbo and camshaft bearings. Extended oil change intervals and the small oil capacity of the 1.8T contribute to this issue. Can lead to catastrophic engine failure if not addressed.
Common Symptoms
- Oil pressure warning light
- Turbo whine or failure
- Ticking noise from top end
- Oil light flickering at idle
- Dark thick residue on oil cap
How to Fix
Sources for this issue (1)
P0021 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 P0021 mean on a Volkswagen?
P0021 stands for "Intake Camshaft Position Timing - Over-Advanced (Bank 2)." P0021 means the engine computer detected that the intake camshaft on bank 2 is timed too far advanced and won't return to its commanded position. Most modern engines use variable valve timing (VVT), where an oil-pressure-driven actuator rotates the camshaft to optimize power and efficiency; the PCM compares the camshaft's actual position to its target. When the cam stays over-advanced beyond an acceptable limit, this code sets. Bank 2 refers to the side of the engine that does not contain cylinder number one. You may notice rough idle, reduced performance, or lower fuel economy. On Volkswagen it is documented across 1 model: Passat.
What are the most common causes of P0021?
The most common causes of P0021 are: Dirty or low engine oil restricting the VVT system, Stuck or failed camshaft oil control valve (VVT solenoid) on bank 2, Clogged VVT solenoid screen or oil passage, Faulty camshaft position actuator / phaser, Wiring or connector fault at the VVT solenoid, Camshaft or crankshaft position sensor problems, Worn timing chain, guides, or stretched chain altering cam timing. The specific cause varies by vehicle.
How much does it cost to fix P0021 on a Volkswagen?
Published repair estimates on Volkswagen range from $500 to $4,000 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.
Looking for P0021 on a different make?
View P0021 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.