Intake manifold repair M116 - illustrated
 

This is on a 116.960 1981 M116 3.8 litre V8 - in the wife's 1981 380SLC.

The job was prompted by an irregular idle and failed CA smog test resulting from intake air leaks. In the event, I also replaced the air flow sensor boot, fuel injector seals and holders, though the last two can be replaced without the need for this comprehensive teardown.

A little longer than I had hoped at 162 images, but there's quite a bit of work involved.

I earlier posted this in draft on the SL Forum for comments. Here is the final article.

Enjoy!

Smog test passed
 

The car just returned from the smog test with these results:

Certificate.