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Improved Coil Mount
Protection against vibration

Improved ignition coil mount As is described on Korman's website, the ignition coil mounting system on the E30 M3 is prone to failure caused by vibration induced fatigue.

The recommended solution is to drill out the factory stud which is spot welded onto the fender and replace it with a nice strong bolt. Since I was waiting for parts for my engine rebuild I decided it might be a good time to undertake this improvement.

The hardest part was drilling out the remainder of the factory stud after I had lopped most of it off with a cut-off wheel. The spot weld is very tough to drill through. But once that was done the rest was easy. I mounted the coil using an 8 mm bolt with a wide fender washer on the backside to prevent the bolt from starting to pull through the fender. This mod may seem like a small detail but nothing would be worse than to have the coil pop loose at a track event 500 miles away from home 8^(


Fender washer on the backside of the new coil bolt Coil bracket with the factory stud drilled out

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