2010 BMW 128i Convertible (E88) L6-3.0L (N52K) P Code Charts
none
P252A
2EA1 – P252A
Information saved in
DME
Fault code
2EA1 – P252A
Fault text
Oil condition sensor, communication
Fault description
Engine Oil Quality Sensor Circuit
Condition for fault identification
Test condition:
Oil status sensor communications monitor
Terminal condition: Terminal 15 ON
Voltage condition:
Voltage in onboard electrical system > 9 V
Condition for fault memory entry
20 sec.
Action in service
1. Check wire (BSD_BUS) connecting oil sensor (QLT) and
DME.
2. Check plug-in connection at QLT.
3. Replace QLT
Fault effect and breakdown warning
Driver information
Warning light:
No warning message. No oil level display or oil temperature
measurement is possible without the BSD_BUS signal.
