2EF4 - P0128

2020 BMW 128i Coupe (E82) L6-3.0L (N51) Diagnostic Trouble Codes ( DTC ): Service instruction

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2EF4

2EF4 - P0128

Information saved in

DME

Fault code

2EF4 - P0128

Fault text

Map thermostat, mechanism

Fault description

Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)

Condition for fault identification

Test condition:

Outside temperature >-10 锟斤拷C

Start temperature (coolant temperature)<65 锟斤拷C und >-10 锟斤拷C

Speed > 30 and<130km/h

Terminal condition: Terminal 15, engine on Voltage condition:

Voltage in onboard electrical system > 10 V

Condition for fault memory entry

Once release point is reached 25 sec.

Action in service

Check heating of engine

Check thermostat and replace as indicated

Fault effect and breakdown warning

Driver information

Warning light:

MIL on in 2nd driving cycle