Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBMW2006X5 (E53) V8-4.8L (N62)REPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONP CODE CHARTSP0141
2006 BMW X5 (E53) V8-4.8L (N62)
P0141
2006 BMW X5 (E53) V8-4.8L (N62)SECTION P0141
2CA8 - P0141
Information saved in
DME
Fault code
2CA8 - P0141
Fault text
Oxygen sensor heating behind catalytic converter, function
Fault description
O2 Sensor Heater Circuit (Bank 1 Sensor 2)
Condition for fault identification
Test condition:
Oxygen sensor behind cat. heater on
Exhaust-gas temperature at sensor (model)
Dew point end reached 140 sec. after heater assumes
operation
Terminal condition: Terminal 15 on
Engine running
Voltage condition:
Battery voltage
11V < battery voltage < 16V
Condition for fault memory entry
Time
26 sec./continuous
Action in service
Replace LSH
Fault effect and breakdown warning
Driver information
Warning light:
MIL on
Service instruction
none
Information saved in
DME
Fault code
2CA8 - P0141
Fault text
Oxygen sensor heating behind catalytic converter, function
Fault description
O2 Sensor Heater Circuit (Bank 1 Sensor 2)
Condition for fault identification
Test condition:
Oxygen sensor behind cat. heater on
Exhaust-gas temperature at sensor (model)
Dew point end reached 140 sec. after heater assumes
operation
Terminal condition: Terminal 15 on
Engine running
Voltage condition:
Battery voltage
11V < battery voltage < 16V
Condition for fault memory entry
Time
26 sec./continuous
Action in service
Replace LSH
Fault effect and breakdown warning
Driver information
Warning light:
MIL on
Service instruction
none
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.