BMW E34 shock absorber and top mount replacement
How do I know which top mount fits the E34 front shock absorber?
The top mount dimensions decide, not the model year or engine size. The surest way is to take the front strut down and measure the parts with calipers. The thread is either M12 or M14, and the rod thickness differs by about 2 mm. A common bearing hole size is 16 mm.
What should I replace at the same time as the shock absorbers?
The dust covers, bump stops and the top mount bearing should be replaced or at least checked. Buy the top mount lock nuts new, because they do not always come with the shock absorber. At the rear, also replace the top mount rubber and the paper gaskets between the mount and the body.
How do I get a seized shock absorber lock nut off?
The nut is cut lengthwise with a cutting disc, but not all the way down to the threads, and the slit is spread with a chisel. Penetrating oil applied to the threads the day before and large pipe wrenches help. Heat helps if the nut will not come off otherwise.
How do I get the E34 rear shock absorber top mount off?
The top mount is under the speaker grille. Remove the grille and the speaker and pry the top mount off with a chisel. A 6 mm and a 16 mm open-end wrench are enough, and the spring seat does not need to be removed. Replacing the rear shock absorber requires removing the rear seat and the parcel shelf.