I have a problem with my recently acquired '95 M3,
The OBC keeps giving me a "Brake Light Circuit" check warning,
all the brake lights seem to be working correctly so what is causing this?
Brake light switch mate. Common as dog muck.
It is clipped above the brake pedal, you have to remove the trim under the column to gain decent access. About 10 mins to fit and about £10 for the part. :thumbsup
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