500 SL 107 won't start

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werner - 11 Aug 2007 20:44 GMT

Yesterday I replaced the fuel pump relais (the one with 'kick down')
on it. Took the car out for a couple of miles, everything fine so far.

This morning I started the car, it fired up but died immediately after
it. I thought it was maybe too low in fuel, so I added some extra
fuel, but it still won't start. Strange thing is that I don't hear
the fuel pump spinning. When I remove the feed line to the fuel
distributor, I do see fuel coming out while trying to start.

Is there something I am missing ? Some other fuses or relais ?

Any ideas appreciated !

Werner

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-->> T.G. Lambach <<-- - 12 Aug 2007 00:23 GMT

"kickdown" - isn't that stamped on the over voltage protection relay
(OVP)???

If so, you didn't replace the fuel pump relay.

I'm not certain so ask others before acting.

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Tiger - 12 Aug 2007 04:32 GMT

No... he did change the fuel pump relay... it is labelled with 'kickdown'

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-->> T.G. Lambach <<-- - 12 Aug 2007 05:03 GMT

OK, the motor doesn't start, despite a new fuel pump relay. But he
doesn't hear the fuel pump running.

This reminds me of my '97 E320. No fuel pump sound but the engine
cranked like a champ. Turned out that the fuel pump's power wire had
corroded off the + battery post! (New battery leaked at the + post and
the acid ate the clamping bolt!)

New battery, clean battery clamp and a new bolt fixed the whole problem.

Suggest you just take a quick look at the battery connections.

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werner - 12 Aug 2007 21:33 GMT

We're on the road again!

Strange thing anyway- when I removed one of the spark plugs to check
ignition and cranked the car, it suddenly started... !

Any idea what could have been the reason ?

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