MasterTuning Fault code dictionary (DTC)

235 — Lambda Heater Bank 1 Post Cat or Pre Cat Signal (MS43)

Severity: Warning Can you drive? With caution: limp mode possible, have it checked soon Make: BMW
MeaningLambda Heater Bank 1 Post Cat or Pre Cat Signal (MS43).
SystemMS41
FamilyManufacturer-native code

Frequently asked questions

What does code 235 mean?

Lambda Heater Bank 1 Post Cat or Pre Cat Signal (MS43). Lambda Heater Bank 1 Post Cat or Pre Cat Signal (MS43). (System: MS41)

Can I keep driving with code 235 active?

With caution: limp mode possible, have it checked soon

How do you fix code 235?

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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