Question 1

How much does electrical fault repair cost in North London?

Accepted Answer

Diagnosis starts from around £55–£85 depending on complexity. Once we identify the root cause we quote the repair before touching anything. Straightforward wiring or earth repairs often fall in the £80–£200 range; module or sensor replacement varies by part. We always give a fixed price before starting work.

Question 2

Will clearing the fault code fix the problem?

Accepted Answer

No. Clearing a code removes the warning light temporarily but the underlying fault remains. The code will return — often within a short drive — because the cause has not been addressed. Proper diagnosis finds why the code was set in the first place.

Question 3

Can an electrical fault cause my car to fail its MOT?

Accepted Answer

Yes. A dashboard warning light that is illuminated when it should not be is an automatic MOT failure. Faulty brake lights, horn circuits, speedometer signals and certain sensor faults are also testable items. Fixing electrical faults before your MOT is strongly advisable.

Question 4

Do you work on all makes and models for electrical faults?

Accepted Answer

Yes. Over 25 years we have worked on European, Japanese, Korean and American vehicles. Our diagnostic equipment covers the vast majority of makes and models, including manufacturer-specific protocols for brands like BMW, Mercedes, VAG group, Ford, Vauxhall, Renault and many more.

Question 5

Is there a warranty on the electrical repair?

Accepted Answer

Yes. Every electrical repair carried out at MnF Motors comes with a warranty on the work. If the same fault returns related to our repair, we will investigate and resolve it at no additional charge. We stand behind what we fix.