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P1525 fault code: what it means

P1525: Intake VANOS solenoid control circuit open, bank 1.

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

  1. faulty VANOS solenoid
  2. broken wire or plug

P1525 by make

BMW

Intake VANOS solenoid control circuit open, bank 1.

Usual causes: faulty VANOS solenoid; broken wire or plug

Mercedes-Benz

Camshaft timing actuator defective.

Usual causes: faulty camshaft adjuster magnet; oil in the plug; wiring fault

Mini

Intake VANOS solenoid control circuit open, bank 1.

Usual causes: faulty VANOS solenoid; broken wire or plug

Not sure what P1525 means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.