C220 cdi loss of power

chris220cdi

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Hi

got a sick car

car will start fine but after getting up to speed (over 40mph) it goes in to some thing like a limp home mode but i get no Engine Management Warning Light car will not rev over 1500 to 2000 RPM in any gear.

AA put it on a diagnostic computer no fault found but car was due
B service was told to get that done.


arnold clark service done and diagnostic computer no fault found.
Still does the same but i will note that arnold Clark did not fit a new fuel filter that was £100 on top told them where to get to

got a new fuel filter from MB my self for £18 that is going in this weekend at a local garage.

IF this does not fix the problem what im i looking at

MAF??
turbo ?
gear box ?


The CAR C220 cdi Avantgarde SE 4d Auto 02 reg with 56K
 

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If the turbo pipe is not split,then the MAF,,you can unplug it and try the car,,, A member Jib sell the pierburg version cheap if that is what you have
 

Alex Crow

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AA put it on a diagnostic computer no fault found but car was due
B service was told to get that done.


C220 cdi Avantgarde SE 4d Auto 02 reg with 56K

what ecu did the AA test? it could be the gearbox or engine ecu...............
 
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chris220cdi

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got the car back tonight and on the way home and got hit with the same problem.

so i can cross fuel filter off the list now.

Malcolm have you got any pics or a how to guide on unpluging the MAF plz im a bit lost.

also going to take a look at all the air pipes and turbo pipe both garages have said pipes are fine.

did notice tonight as the car was going up the gears car made a dump valve blow off sound just before it cut the revs back to 2000 rpm this was 2nd gear to 3rd gear by 4th it cuts the revs.

AS for what the AA tested all i can tell you that he linked the laptop up from under the steering wheel.

thanks for your help
 


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