Powertrain
generic / SAE
P05E8
Engine Oil Bypass Valve Control Circuit Open
The oil bypass valve - which routes oil around the cooler to speed up warm-up - has an open control circuit. Without it, oil temperature rise during cold-start is slower than calibrated.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number5 / E8
Possible causes
- Open in valve or harness high
- Pin pushed back out of connector body low
- Cracked solder joint inside the module or sensor low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 120–450 €
- Estimated time: 0.6–2 h
- Component: oil bypass valve
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012