My 450SL will not start. When I turn the key and let go it continues to grind, but does not start. It's not the sound of a weak battery. Never seen this before.

Asked by Sep 14, 2012 at 04:49 PM about the Mercedes-Benz 280

Question type: Maintenance & Repair

This has ha;ppened twice.  We usually let it sit a while and then it starts.  This time it hasn't.

2 Answers

22,615

It might be a bad starter.

1,515

If engine cranks but will not start then the engine is either not getting fuel (most likely on 107 SL's) or no spark or a timing issue. Easiest thing to check is to listen for the fuel pump (near right rear wheel). If it doesn't run, then probably you need a fuel pump relay. Found behind the glove box.

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