Oil pressure switch leak into wiring loom
SeriousEngineOil can leak through the pressure switch and wick into the wiring harness, in extreme cases reaching the ECU.
Most affected: 1.2, 1.4, 1.4 Turbo
Typical symptoms
- •Oil around switch or loom
- •Engine faults with no obvious cause
- •Misfire or ECU-related errors
What to inspect before you buy
- ✓Inspect the switch and connector
- ✓Look for oil inside loom plugs
- ✓Check if the switch was replaced early