Mercedes S65 AMG M275 Airbox repair

My S65 AMG has the right hand side airbox tab broken off.

As a result, the airbox isnt secured into the inlet of the turbo, no good!

I designed and 3d printed a replacement.

Here is the bit that is broken.


and here is what its meant to look like:


Now I was not about to pay £500 for a new airbox so I set about 3d printing a replacement.

Some time later, I had a template:


After some measuring and printing, I had something usable.

I trimmed some of the broken pieces from the airbox and then epoxied it into place. Annoyingly, it dried in a slightly odd angle, but it should be fine!

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W123 – Alternator Bracket

A lot of the jobs on this 123 are delayed by having to fix the previous owners bodges and damage.

A simple belt change was a pain in the …. as the previous mechanic had over tightened the alternator tensioner bracket.

This meant that the alternator had one position, which in this case, was over tight!

Alternator mounting bracket

Hmm Rather bent

After a bit of work with a hammer and a vice, I had it pretty straight:

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Cleaned up with a wire brush, and a couple of coats of satin black (as ed china loves):

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On the car and no more squeaking!


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W123 – Rust touchup and other stuff

Today, I removed the tow bar on the 123.

I am never going to tow with it, and I think it looks a bit rubbish.

Here it is with the tow bar. Its bolted onto the frame of the car underneath the rear bumper and is also bolted into the boot floor.

After lots of wrestling with bolts I had the bumper off:

I was rather worried when I was removing the tow bar as there appeared to be lots of hidden rust (ad said “No rust anywhere!” ha)

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