P0010

What This Code Means

Code P0010 points to a fault in the electrical circuit of the intake camshaft VANOS solenoid on bank 1. The engine control unit (DME) detects an open or short in the solenoid control circuit, which prevents correct camshaft timing adjustment. The VANOS system changes camshaft position to optimize performance and fuel economy. A circuit fault disrupts that adjustment and affects how the engine runs.

Symptoms

• Engine: rough idle, loss of pull at low rpm, hesitation under acceleration
• Indicators: Check Engine Light (CEL) comes on

Diagnosis and Repair

Step 1: Read the Codes

Connect a diagnostic scanner (ISTA) and read the fault codes. Confirm that P0010 is active.

Step 2: Check Solenoid Resistance

Unplug the intake VANOS solenoid connector (bank 1). Measure resistance across the terminals with a multimeter. Normal value: 7–12 ohms. A reading outside that range points to a bad solenoid.

Step 3: Inspect the Wiring and Connectors

Check the harness from the DME to the solenoid for damage, corrosion, or loose contacts. Pay close attention to sections near hot surfaces and moving parts.

Step 4: Replace the Solenoid

If resistance is out of spec or the wiring checks out, replace the VANOS solenoid. Original BMW part number: 11367579070. After replacement, clear the codes and take the car on a test drive.

Secondary Problems

Ignoring P0010 can gradually shift camshaft timing, which reduces engine performance and raises emissions. Running for a long time with the camshaft out of position can accelerate timing chain wear and, in severe cases, cause valve-to-piston contact that requires an engine rebuild.