MasterTuning Fault code dictionary (DTC)

28F9 — Rough Running Segment Time Measurement

Severity: Warning Can you drive? With caution: limp mode possible, have it checked soon Make: BMW
MeaningRough Running Segment Time Measurement.
SystemME 9
FamilyManufacturer-native code

Frequently asked questions

What does code 28F9 mean?

Rough Running Segment Time Measurement. Rough Running Segment Time Measurement. (System: ME 9)

Can I keep driving with code 28F9 active?

With caution: limp mode possible, have it checked soon

How do you fix code 28F9?

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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