P1029 – VANOS Exhaust Camshaft Correlation (BMW)

Description

P1029 BMW indicates incorrect correlation between the exhaust camshaft and crankshaft.

Need More Than Just the Fault Code?

A diagnostic scanner with live data, freeze-frame information and the right system access can help you investigate the actual cause before replacing parts.

Compare Diagnostic Scanners

Symptoms

  • Rough idle
  • Reduced power
  • Hesitation

Causes

  • Timing chain stretch
  • VANOS fault
  • Sensor error

Diagnosis

  • Check cam/crank correlation
  • Inspect timing chain
  • Scan DME

Repair

  • Replace timing chain
  • Repair VANOS
  • Replace sensor