2010 BMW 128i Convertible (E88) L6-3.0L (N52K) P Code Charts
none
P0520
2F7B – P0520
Information saved in
DME
Fault code
2F7B – P0520
Fault text
Oil-pressure switch, plausibility
Fault description
Engine Oil Pressure Sensor/Switch Circuit
Condition for fault identification
Test condition:
Oil presure switch monitor
Terminal condition: Engine speed = 0
Control module in post-operational shutdown phase
Voltage condition:
Voltage in onboard electrical system > 10 V
Condition for fault memory entry
Engine shutdown:
continues roughly 8 sec. after engine is switched off.
Action in service
1. Check wire from oil
pressure switch.
If not OK –> Repair wire
If OK –>
2. Replace switch
3. Switch should change position when
engine is started and then shut down
(ground connection)
Fault effect and breakdown warning
174
Driver information
Warning light:
Possible display in the MMI will vary according to whether
the switch seizes while open or closed.
