You don't need to undo the pinion bolt to change the cam belt only the idlers, you can get away with removing just one but it is easier to remove both. It can be done at the side of the road you just need the correct spanners and 3 locating dowels to align the cams, and you need to let the engine cool down first, learnt from bitter experience.


2021 M3W
2013 M3W - Sold
1971 4/4 2 Seater
1934 Sports