BMW E30 – 3 Series Restoration Guide

The M20 head cracks here Now for the M20 engines. This range of engines covered the 320i, 323i, 325e and 325i and BMW made millions of them.

good strong antifreeze mix for the coolant is essential to avoid cylinder head corrosion

back off for about

Check the rear arches and damper turrets for rust

Check spare wheel well for rust

More importantly though, you really need to remove the boot carpet mat, and then pull back the side carpet trims

Whilst you are under there, check the condition of the steel brake pipes

More importantly, look at the jacking pad underneath front floor if that is rotten and about to fall off, it is a carpets out job to repair it

Touring tailgates can rust here

Check strut top, inner wing for cracks