Bolt lengths w124

[JcMercZ]

Can someone advise what length longer bolts are required to bolt genuine 18 monoblocks to W124 estate, and are the rears going to be shorter ones that are needed?

 

[tjamesbo]

You can measure the depth of the Hole into the Rear Drum on the Rear Disc Then Add on the Depth of the Alloy up to where the Bolt Shoulder is add the two together and that is the length . You need full thread engagement in the Rear Drum but if it protrudes into the rear drum beyond the thread then it will catch on the Internal Handbrake shoe mechanism Also Bolts can look similar re the shoulders make sure the seat matches the Shoulder in terms of spherical or conical shoulders ,if in doubt take a plasticine moulding of the wheel Bolt recess.
that should take you to NVQ level 1 in mercedes wheel bolts .
Boyd