P10E4 BMW Possible Causes
- Faulty Valvetronic relay
- Valvetronic relay wiring harness is open or short-circuited
- Poor electrical connection in the Valvetronic relay circuit
How to Fix BMW P10E4 Code?
Start by checking the “possible causes” listed above. Visually inspect the corresponding wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
Check engine light illuminated (or engine service warning light soon)
P10E4 BMW Meaning
The Engine Control Module (ECM) monitors the Valvetronic relay. The ECM sets the OBDII code when the Valvetronic relay does not meet factory specifications.