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 掳C
Start temperature (coolant temperature)<65 掳Cund >-10 掳C
Speed > 30 and<130km/hTerminal condition: Terminal 15, engine onVoltage condition:Voltage in onboard electrical system > 10 V
Condition for fault memory entry
Once release point is reached 25 sec.
Action in service
1. Check heating of engine
2. Check thermostat and replace as indicated
2010-2020 BMW 128i Convertible (E88) L6-3.0L (N51) WWW.168MOTIVE.COM Page 234
Fault effect and breakdown warning
Driver information
Warning light:
MIL on in 2nd driving cycle
