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1979 Mercedes 450SL, Running Problem

Submitted by Jeanie on 19 February 2008 - 7:22pm.
My 1979 Roadster runs good until it warms up, then dies when you let up on the accelerator. Any info about this problem will be appreciated.
‹ differential gear ratio changing speedometer function? I have a 2001 mecedes slk and its making a rattling noise when I accelerate only, can u help ›

Check warm up regulator

20 February 2008 - 10:54am
Kent Bergsma
I would start with the warm-up regulator. This is an expensive part so I would have the problem diagnosed by a competent mechanic before throwing parts at it :-)... Kent

1979 Roadster

20 February 2008 - 7:42pm
Jeanie
I will do that. Thanks very much.

1979 Roadster

22 February 2008 - 5:51pm
Cory
Also, I would check out the air-slide valve. But, I'm not an expert...My 79 450SL is sitting in the garage...not running...LOL cory

1979 Roadster

23 February 2008 - 9:15pm
Jeanie
Thank you Cory. Will add to my list of things to check.

1979 Roadster

23 February 2008 - 9:22pm
Jeanie
I should have mentioned that this car has been in a shop for months. The invoice says: "Cleaned gas tank and lines, replaced fuel pump and regulator, replaced fuel filter, replaced fuel distributor cleaned system again and replaced filter and replaced top half of intake. Still dies when let off accelerator suddenly."