2010 BMW 128i Convertible (E88) L6-3.0L (N52K) Manufacturer Code Page 63
2A1C
2A1C – P0461
Information saved in
DME
Fault code
2A1C – P0461
Fault text
Tank fill level, plausibility
Fault description
Fuel Level Sensor ‘A’ Circuit Range/Performance
Condition for fault identification
Test condition:
Excess mechanical resistance in the level sensor causes the
level signal to change too slowly relative to engine fuel
consumption, leading to generation of a fault memory entry
Terminal condition: Terminal 15, engine on
Voltage condition:
none
Condition for fault memory entry
20 liters of fuel consumption required
Action in service
1. Check level sensor data directly at flange
2. Check variation in sensor data by rocking / knocking on
the tank
3. Carefully open the tank flange, check for stiction in the
float lever
4. Replace the fuel level sensor only if stiction is found in
the float lever (distorted sensor lever, bearing resists motion)
Fault effect and breakdown warning
Driver information
Warning light:
NO
Service instruction
none
2A03 – P1413 (DME)
2A03 – P1413
Information saved in
DME
Fault code
2A03 – P1413
Fault text
Secondary-air pump relay, activation
Fault description
Secondary Air Injection Pump Relay Control Sircuit Signal
Low
Condition for fault identification
Test condition:
Control activation monitor, in post-start phase when pump is
triggered
Terminal condition: Terminal 15 ON
