I put on 4 new shocks two weeks ago (Bilstein Comfort). All is well for two weeks then then a squeek comes from the rear passenger area.

Initially, I thought I would just tighten the top bolt. No joy.

When I press on the bumper, there is a definite squeek.

I will take the shock off this weekend but in the meantime, do you guys have any idea what it might be? I noticed the the plastic 'mud guard' tube fits pretty snuggly against the car but I doubt that is it.

Any tips are appreciated.

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Ben
1987 190d 2.5Turbo