MasterTuning Fault code dictionary (DTC)

27DE — Engine Coolant Temp Sensor Signal

Severity: Warning Can you drive? With caution: limp mode possible, have it checked soon Make: BMW
MeaningEngine Coolant Temp Sensor Signal.
SystemME 9
FamilyManufacturer-native code

Frequently asked questions

What does code 27DE mean?

Engine Coolant Temp Sensor Signal. Engine Coolant Temp Sensor Signal. (System: ME 9)

Can I keep driving with code 27DE active?

With caution: limp mode possible, have it checked soon

How do you fix code 27DE?

Diagnosis starts from reading the live ECU parameters: the code points to the fault area, not to the part to replace. A vehicle-electronics specialist can test the component and clear the code after the repair.

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