Re: 2000 rpm idle and ABS warning light on(420 SEL)
: this happens intermitently always together what causes it? The car is a 1988 420 SEL<br>Thanks <br>Dave<p>Sounds like you need to replace your over voltage<br>protection relay. It is located in the fuse box<br>under the hood. It should be the only relay that<br>has its own built in fuse on top of it. With the<br>engine warmed up you can pull this relay out while engine is running and cause the same type <br>of problems, plug it back in and engine smooths <br>out and ABS light goes out. Not an unusual problem<br>for Benz.
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