M-Class (W163) Produced 1998-2005: ML 230, ML 320, ML 350, ML 400 CDI, ML 430, ML 500, ML 270 CDI

2001 ML430 will not start when engine is warm

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Old 12-18-2009, 08:19 PM
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Mercedes ML430
2001 ML430 will not start when engine is warm

Please help! My ML430 will only only start when engine is cold. Once it is warm, it will not start again until engine is cold again.

I have heard this could be a crankshaft position sensor (CPS) or a mass air flow sensor (MAF)

which is more probable cause? thank you.

Last edited by Racerx18691; 12-18-2009 at 08:42 PM. Reason: added question
Old 12-20-2009, 01:36 PM
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2009 ML350
CPS is most likely the culprit, pull the codes and you will know what is is exactly.

-Kevin

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