Back to 1997 BMW 318ti E36
Help

1997 BMW 318TI E36

1.9L I4 M44•RWD•AUTOMATIC•gas
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
Repairs0Labor564Torque3477Fluid7DTC642Battery0Maintenance0Recalls0
P1525high severityPowertrain

Variable Valve Timing Actuator Supply Voltage

on 1997 BMW 318ti E36 1.9L I4 M44 · RWD

What this code means

The DME detected that the supply voltage to the VANOS actuator system is out of specification. Proper voltage is critical for the precise electro-hydraulic control of variable valve timing.

Symptoms

  • Check Engine Light
  • VANOS not operating correctly
  • Power loss at various RPMs
  • Rough idle
  • Poor throttle response

Common causes

  • Low battery voltage
  • Corroded wiring or connectors in VANOS circuit
  • Faulty VANOS solenoid coil
  • DME power supply issue
  • High resistance in power feed

Diagnostic steps

  1. Test battery voltage and alternator output
  2. Measure voltage at VANOS solenoid connector
  3. Inspect wiring for corrosion or damage
  4. Test VANOS solenoid coil resistance
  5. Check DME power supply circuits

Repair notes

Repair the voltage supply issue to the VANOS actuator system.

Other Powertrain codes on this vehicle

⚠ STILL BEHIND THE PAYWALL
The 1997 BMW 318ti E36 repair data is incomplete because no one has sponsored it yet. For $99, we generate the full step-by-step procedures, then fact-check them with a second AI pass and your expert review. Your name on every procedure, permanently.
The same data would cost $169/mo from Mitchell1 or $30/year from ALLDATAdiy — and you'd be renting access, not freeing it. Sponsor once, free forever.
Sponsor the BMW 318ti E36 — $99 →
Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →