HELP!! very desperate c200 cdi auto not changing gear violent jerk

arthur_clark

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hi guy's im at my wits end, just got a 4 grand loan for my first merc a c200 cdi sold as seen as always, trouble started with engine light and amber caution symbol light, car with skiddy lines on dash, then today it started to jerk violently when i put it in to gear, i got home and decided to have a look around the brakes nothing to see so i took the rear sensors out and give them a clean, took it for a short run, and now its not changing gear also the button for sport ,manual ,and comfort is not working what the hells gone wrong. HELP!! PLEASE im almost in a big bucket of tears.
 

bembo449

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possible TCU in the gearbox id say , needs a diag sesh really , how long since you bought , was it from a dealer ?
 

V6Matty

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As the ESP light has been on I would have a guess it’s not getting correct signals from the wheel speed sensors, it may also explain things feeling very jerky as the ABS is grabbing.
That said your best route here is get it to an independent specialist with STAR to read the codes and see what’s being thrown, also try giving the battery a good charge as Mercs really don’t like low voltages when starting
 
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arthur_clark

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As the ESP light has been on I would have a guess it’s not getting correct signals from the wheel speed sensors, it may also explain things feeling very jerky as the ABS is grabbing.
That said your best route here is get it to an independent specialist with STAR to read the codes and see what’s being thrown, also try giving the battery a good charge as Mercs really don’t like low voltages when starting
battery is ok turns spot on, the jurk is only when first moveing the selector into gear D or R and so on , quit violalent
 

LostKiwi

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'93 500SL-32, '01 W210 Estate E240 (RIP), 02 R230 SL500, 04 Smart Roadster Coupe, 11 R350CDi
Before throwing money at it get it on a decent MB specific code reader. Check live data from all 4 ABS sensors and go from there.
 
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arthur_clark

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Before throwing money at it get it on a decent MB specific code reader. Check live data from all 4 ABS sensors and go from there.
thanks will get on the blower tomorrow
 

LostKiwi

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'93 500SL-32, '01 W210 Estate E240 (RIP), 02 R230 SL500, 04 Smart Roadster Coupe, 11 R350CDi
Where are you based? We might be able to suggest somewhere trusted to go.
 
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arthur_clark

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Before throwing money at it get it on a decent MB specific code reader. Check live data from all 4 ABS sensors and go from there.
do you thingk this is fo any help
 

LostKiwi

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'93 500SL-32, '01 W210 Estate E240 (RIP), 02 R230 SL500, 04 Smart Roadster Coupe, 11 R350CDi
I don't know anyone up that far but one of the more northern members may be able to help.
 
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arthur_clark

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is there no merc mechanics on this forum
 

Jim2

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is there no merc mechanics on this forum
Sure there is, you have just been advised by a few,,,1st course of action,,,you need to get it scanned, and they are trying hard to help you, even trying to put you in touch with members or indys who are located near you. With modern cars,,,no mechanic can pull a solution out of thin air..based on the symptom's you ( or anyone else with a problem ) describe, they can form an opinion on what might be the problem, and propose a possible solution, but modern cars are highly computerised so the OBD scan is the way to go.
 
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arthur_clark

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could it be the TCM conductor plate
 

LostKiwi

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'93 500SL-32, '01 W210 Estate E240 (RIP), 02 R230 SL500, 04 Smart Roadster Coupe, 11 R350CDi
It could be many things. Get codes read so you don't throw money away guessing what it might be.
 
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arthur_clark

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Sure there is, you have just been advised by a few,,,1st course of action,,,you need to get it scanned, and they are trying hard to help you, even trying to put you in touch with members or indys who are located near you. With modern cars,,,no mechanic can pull a solution out of thin air..based on the symptom's you ( or anyone else with a problem ) describe, they can form an opinion on what might be the problem, and propose a possible solution, but modern cars are highly computerised so the OBD scan is the way to go.
thanks only asking i am new on here and dont know who is who
 

Jim2

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thanks only asking i am new on here and dont know who is who

Yes, thats understandable !! We all started like you, but as a help for future reference, just have a look at the banner of anyone who reply's to you..Lost Kiwi , (who has replied to you, ) for example, has :
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So its a fairly safe assumption that what he does not know about MB (or more specifically, MB problems ) is not worth knowing, And he is not the only one.
 

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