W202 C220Cdi Starting Probs

[kerms]

Hiya chaps,

Had my 2000 w202 c220cdi for a year now, 25000 miles with next to no probs at all. The niggles are starting to appear and im starting to worry.

The latest one is this. Car starts fine in the morning, but if I stop halfway down the road ,, maybe at the garage to fill up, the car does not start, only after nearly draining the battery does she breathe life. But if she is left overnight she starts first time.

Any ideas chaps ?? Beginning to think about getting rid, hope there is a easy fix for this one.

Simon

 

[television]

Hiya chaps,

Had my 2000 w202 c220cdi for a year now, 25000 miles with next to no probs at all. The niggles are starting to appear and im starting to worry.

The latest one is this. Car starts fine in the morning, but if I stop halfway down the road ,, maybe at the garage to fill up, the car does not start, only after nearly draining the battery does she breathe life. But if she is left overnight she starts first time.

Any ideas chaps ?? Beginning to think about getting rid, hope there is a easy fix for this one.

Simon

Crankshaft sensor would be the ideal candidate for this fault.

 

[kerms]

You seem to be the resident expert on here malcolm. Nice to see experts giving advice for free. Its appreciated.

How can I find out if this is the fault ?

 

[television]

You seem to be the resident expert on here malcolm. Nice to see experts giving advice for free. Its appreciated.

How can I find out if this is the fault ?

It will have left a fault code that can be read on a Star diagnostic tester.

There is little else that will cause this, had another one earlier this week

 

[kerms]

you prob knew this was coming ,,, is it an easy job to replace ??

 

[television]

http://forums.mercedesclub.org.uk/index.php

The above was one of the ones this week,they fail in all different ways.

http://www.detali.ru/cat/oem_mb2.as...GM=717.466&CT=M&cat=19U&SID=15&SGR=105&SGN=03

item 29 fairly easy to do,

Yes I knew that was coming

 

[kerms]

http://forums.mercedesclub.org.uk/index.php

The above was one of the ones this week,they fail in all different ways.

http://www.detali.ru/cat/oem_mb2.as...GM=717.466&CT=M&cat=19U&SID=15&SGR=105&SGN=03

item 29 fairly easy to do,

Yes I knew that was coming

if i was to remove this, clean it up and put it back in, would it make a difference ??

or should i just order the bit, whats the part number to order ?

cheers malcolm

 

[television]

if i was to remove this, clean it up and put it back in, would it make a difference ??

or should i just order the bit, whats the part number to order ?

cheers malcolm

They are Hall effect switches and cant be cleaned, they open and close 1000s of times a minute.

You can have the code read out and MB will have the part number. though I am sure of the fault I would hate myself if I was wrong in the this.

They cost around £80

 

[kerms]

So I need to go back to the dealer to do this then mate ?? Car is making big dents in my pocket at the mo, had that cooling fan control unit done less than a month ago , now this, getting worried whats next !!

 

[eric242340]

Hi Kerms, sorry to hear your feelings of MB. The problem here is temperature related, and I quote (had the cooling fan control unit done recently) If it starts when cold and not when warm then its definately temperature related. Could you explain what led up to this part being changed? Your explanation of this piece of history would help find the cause of your present problems. Thanks Eric

 

[kerms]

Hi Kerms, sorry to hear your feelings of MB. The problem here is temperature related, and I quote (had the cooling fan control unit done recently) If it starts when cold and not when warm then its definately temperature related. Could you explain what led up to this part being changed? Your explanation of this piece of history would help find the cause of your present problems. Thanks Eric

sure mate, a month ago my cooling fan came on whilst driving for no reason and stayed on, and only turned off when i turned off the ignition. This was accompanied by the coolant warning light intermittantly coming on and off. MB diagnosed the problem as the cooling fan ecu under the passenger side of the front bumper, and when i saw the old one i had to agree, it was minging !! All changed at MB for just short of £300. 1000 miles later and my little money muncher has developed a problem starting after being run , not after being left overnight, just after a short run. She starts after a while, just before the battery dies !!

Television reckons its the crank sensor, how about you mate ?

 

[eric242340]

sure mate, a month ago my cooling fan came on whilst driving for no reason and stayed on, and only turned off when i turned off the ignition. This was accompanied by the coolant warning light intermittantly coming on and off. MB diagnosed the problem as the cooling fan ecu under the passenger side of the front bumper, and when i saw the old one i had to agree, it was minging !! All changed at MB for just short of £300. 1000 miles later and my little money muncher has developed a problem starting after being run , not after being left overnight, just after a short run. She starts after a while, just before the battery dies !!

Television reckons its the crank sensor, how about you mate ?

Yes this is possible, but so are so many other possible causes and even Malcolm suggests a Star D test. I still think this is temperature related and any sensor can break down with heat. Your fan control unit has little bearing on this from what you have told me. Other than the engine may have over heated at some stage and coused damage to a sensor. Especially hall sensors, they are very sensitive. I would go for a star diagnostics test first.

 

[kerms]

is a star diagnostics test done by a mb dealer only ?

 

[sam747uk]

hi
i hve got c220 cdi 2001 problem is when i put key fob to start n turn on nothing happen then couple of times i take the key out n put in n then it starts can u plz tell me wot shud i do i hve already changed the key
thanks

 

[television]

is a star diagnostics test done by a mb dealer only ?

Your car can be checked by an indie who has a diagnostic test set. Where are you based.


You must ignore the post by eric about fans and low water reading lamps, he does not know how they work.

 

[kerms]

Your car can be checked by an indie who has a diagnostic test set. Where are you based.


You must ignore the post by eric about fans and low water reading lamps, he does not know how they work.

Im in stirling in scotland mate,, car has been with mb in grangemouth for two days and they havent discovered whats wrong with it yet, cant wait for labour bill

 

[kerms]

mb have diagnosed the problem as air in the fuel line, they have replaced the filter , cleaned out the fuel lines and charged me £290 for their trouble. So thats £600 in a month.

Car is going, I knew they were expensive to run but this is taking the ****.