SLK 320 - Engone turns over but won't fire.

Scrat

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Hi,
I have an intermittent problem on my 2001 SLK 320 whereby the engine will turn over and over but won't start. Seems to be when engine has been running. Other occasions it is fine.
Have read on the forum about immobilisers, ECU's, fuses, keys etc ....
Quite a frustrating problem and I am reluctant to give it to the dealer to look at in fear of another big bill ..!!!
However, car is due a service in 2K miles.
Has anyone experienced any similar issues.... ?
Many thanks in advance.
 
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S

Scrat

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Thanks for prompt response. Think I read that somewhere on here.
Expensive .. ?
And is it a DIY job .. ?
I am fairly technically minded and have acces to a pit if required.
Thanks.
 
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Scrat

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OK cool.
Just tried it again and it started.
Engine management warning light was on. Restarted a couple more times and it went off.
Looked up 'Crankshaft Speed Sensor' and it seems to play up when hot which figures in my scenario.
Thanks for your help.
 

television

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They can be placed in a mug of boiling water with an ohmmeter connected,,they measure 1kΩ when good and open circuit when they fail
 
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Scrat

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Job done ....

Dealer fitted new sensor this morning. Said it was most likely the issue as it was very rusty and awfully difficult to get out .... 125 quid for the job with the 4Life discount. Took half an hour.
Hopefully that is the end of the problem.
Cheers
 

television

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Good news and yes they can be pigs to get out,,happy motoring :D:D
 


ACMS Mercedes Ltd is an independent Mercedes-Benz service specialist based in Walsall. The company provides high levels of customer service and quality workmanship, at competitive prices. Call Mark on 01922 634666 or 07530 456000
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