2010 BMW 128i Convertible (E88) L6-3.0L (N52K) Manufacturer Code Page 285
Information saved in
DME
Fault code
2F6C – P0478
Fault text
Exhaust-gas flap, activation
Fault description
Exhaust Pressure Control Valve High
Condition for fault identification
Test condition:
Exhaust valve control-activation monitor
Component must be installed
Tester must be used to trigger component for 10 sec.
Terminal condition: Terminal 15 ON
Voltage condition:
Voltage in onboard electrical system > 10 V
Condition for fault memory entry
2 sec.
Action in service
1. Check wiring
Repair if defective
If wiring is OK proceed
to check component (which and how?)
Fault effect and breakdown warning
Driver information
Warning light:
No display
Service instruction
none
2F7B
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
