S320 starting problem

Jony

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Hi any advice would be appreciated...2001 S320 petrol 33k miles has recently taken longer to start......engine turning over okay so no prob starter motor etc!

started okay on saturday then 10 min run as normal... would not then start for about 5 mins then started and run all the way home with engine diagnostic light staying on but car running normally!!

Light now off and all seems normal!!!

Could this be the MAF sensor and should I change this first ?

Thankyou in anticipation !!!
 
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47p2

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Best take the car to your local stealership and ask them to stick it on the computer.
MAF is more likely to give problems when running.
 
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Jony

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Thankyou for replying....as a follow up to my initial question I changed the MAF ( £165 bosch from euro car parts ) and then the crankshaft position sensor!!(£70 from MB) No problems since!! after further reading of the forum I would agree that it was probably the cps rather than the MAF as it was a starting rather than running problem!! I also realise that the cps end inside the engine housing has no contact with anything and generates a magnetic field...however the old one looked "worn" across the plastic and metal centre and the new one the metal stood proud by say quarter mm!!
 

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I was just going to say CPS when I saw that you had changed it, it will be OK now
 
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Jony

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Thankyou Malcolm been fine since!!
 

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