When I turn the ignition key on every lights in the ip cluster seem to be normal, and after the glow plug light goes off tried to start the engine but there is no sound no even a click or any thing.
the car is '92 300sd.
I even tried jumping cable but still the same.
any help would be greatly appreciated.
dunn

Is the shift lever loose? There shouldn't be much fore-aft play. Try starting in neutral. Hold the key in start and move the level a little forward and aft of N. Don't put it in R or D!

Sixto
95 S420
87 300SDL

I tried all that and still nothing happen.
dunn

dunno,

Connect a wire from the + terminal on the battery to the small terminal on the solonoid. This should cause the solonoid energize the starter. NOTE, Make sure the shift lever is in Park.

If the solonoid and starter work using the above test, your problem is in the nuetral switch, key switch or wires/connections.

If nothing happens using the above test, starter, solonoid or high current wires/connections (including ground connections) could be bad.

P E H

When I had a similar problem on my SD, it turned out to be the chassis-engine ground. The exhaust bracket the grounding strap was attached to was loose. (2 starters later ) There is only one strap. Check the simple things first because I think there have been several others here with similar symptoms.

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Sam

84 300SD 350K+ miles ( Blue Belle )

I just tried to start my 1994 s350 and just like dunno said it there is no click or sound, the car just wont start.

Called my electrician on the cell, and he told me it might be some kind of a neutral switch.

P.E.Haiges, where is the solonoid placed at?

SD Blue, you mentioned the chasis-engine ground. Where is the exhaust bracket/grounding strap located?

Thanks

rekatt,

The solonoid is located on top of the starter. The solonoid's function is to make the high current electrical connection to the starter and push the pinion gear into the ring gear so the starter cranks the engine.

P E H

rekatt,

I am not completly sure on your car but on mine it is located on the passenger side very near to the starter. A good possibility on yours is near the starter. There is likely only one and it's pretty large.

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Sam

84 300SD 350K+ miles ( Blue Belle )

Today a tech(not a MB) after turning the key on, and all the lights came on, used a piece of metal and touched this specific part of the starter, it cranked and the engine turned on, so its not the starter.

So he had two wires connected to the starter and attached a push/start button inside the passager compartment.

In monday I'll take it at the official MB shop and see what's up.

Considering the situation as I explained it, what can be wrong and what's the worse scenario?

Thanks

Four things could be wrong with your car to cause it to not engage the starter with the key:

1. Key switch

2. Nuetral switch

3. A broken wire between the two above and the solonoid.

4. A bad connection between the first two above and the solonoid.

The wires and temporary switch the mechanic installed shunt the above parts to make the starter work so the problem has to be one of them.

P E H