C32 AMG, C55 AMG (W203) 2001 - 2007

03 c32 transmission issue

Old Dec 15, 2015 | 11:42 AM
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03 c32 transmission issue

Need some advice from the mbworld family. I bought a c32 early summer. Car had a jerk in the transmission during 1-2 up shifts then again on down shift. Both are aggressive. When the shifter is put into drive it bangs really hard same for reverse. I figured it was the transmission. So I replaced the tranny. The tc and pump were rebuilt. OE oil, filter and gaskets were used. After all that. The car is still doing the exact same thing the old tranny was doing. I mean exactly. Transmission guy can't figure it out. He's suggesting getting another tranny. I know the replacement tranny works its mine not junkyard bought. Need help here.
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Old Dec 15, 2015 | 02:23 PM
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Wow. A quick search would have saved you a ton of $$$$$. It is most likely the conductor plate and PWM solenoid. Also I would get a new "guy" because this is a known issue.
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Old Dec 15, 2015 | 09:23 PM
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Totally agree with you..


Originally Posted by insame1
Wow. A quick search would have saved you a ton of $$$$$. It is most likely the conductor plate and PWM solenoid. Also I would get a new "guy" because this is a known issue.
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Old Dec 15, 2015 | 09:41 PM
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Original tranny was contaminated. Gylcol. Replaced the valeo radiator. I'll try the suggestion tomorrow.

Last edited by e55izm; Dec 15, 2015 at 09:50 PM.
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Old Dec 16, 2015 | 08:10 AM
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Original tranny was contaminated. Gylcol. Replaced the valeo radiator. I'll try the suggestion tomorrow.

I figured it was the transmission. So I replaced the tranny.
Did you do a glycol test? Usually when that happens you get slipping and other issues.
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Old Dec 16, 2015 | 08:17 AM
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I changed the complete unit.
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Old Dec 16, 2015 | 11:20 AM
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I changed the complete unit.
I get that but was it tested for contamination or was it just a hunch and replaced.
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Old Dec 16, 2015 | 02:04 PM
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Conductor plate and pwm throw any codes?
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Old Dec 16, 2015 | 02:14 PM
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Did you check if oil sneaks to your TCU..!?!

ZAYED,,
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Old Dec 16, 2015 | 02:31 PM
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Tcu and harness bone dry. In winter mode shifts fine. Its only between 1-2 up and down. In winter mode still bangs when selector is moved to drive reverse and park. No tranny codes.
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Old Dec 16, 2015 | 02:42 PM
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If Valve body solenoids are fine, and TCU file not been collapse,,

then it could be bad "tq. converter", but can't assure that..!!

ZAYED,,
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Old Dec 16, 2015 | 03:02 PM
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Torque converter rebuild still under warranty. Torque converter adaptation ? I read somewhere that a adaption might be needed but no instructions.

Last edited by e55izm; Dec 16, 2015 at 03:16 PM.
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Old Dec 16, 2015 | 04:16 PM
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The only thing i know of is the so called sneaky reset. While in the car with the door shut put the key in position 2. pres the accelerator to the floor and hold for 10 seconds. turn key off and release the pedal. then just sit and wait for 2 min without touching anything.

This is from memory so if I messed up somewhere please note it.
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Old Dec 16, 2015 | 04:23 PM
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Originally Posted by insame1
The only thing i know of is the so called sneaky reset. While in the car with the door shut put the key in position 2. pres the accelerator to the floor and hold for 10 seconds. turn key off and release the pedal. then just sit and wait for 2 min without touching anything.

This is from memory so if I messed up somewhere please note it.
Tried it. Even had the tranny adaptation reset via star.
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Old Dec 16, 2015 | 09:08 PM
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Earlier in the day it was driving fine in winter mode. Just tried going for a ride. Tranny is whining and no engagement. I've just about had it with this car.
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Old Dec 17, 2015 | 08:05 AM
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Have you checked the fluid level? If you are going to do the plate and PWM you'll have to drop the pan anyway so check to make sure the filter is secure while your in there.
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Old Dec 17, 2015 | 08:07 AM
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Level is normal. I'll check filter.
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Old Dec 17, 2015 | 10:27 AM
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Tranny not engaging. Is this a definite mechanical failure ?
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Old Dec 17, 2015 | 10:55 AM
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Tranny not engaging. Is this a definite mechanical failure ?
It definitely could be but I would suspect that it would just happen all of a sudden. As much as I hate to admit this. When I did my plate and pwm I forgot to reinstall the the filter. The trans would work until it got hot and then there was not enough fluid in the pan for the spout to suck it up.
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Old Dec 17, 2015 | 11:07 AM
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If tranny not engaging, then prefer to jack the car & put it in D position, see if tq.converter is stuck(not rotating), need new one,,

or if it rotating, then it might be internal B1/K1 clutches are gone..!!

ZAYED,,
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Old Dec 18, 2015 | 01:48 AM
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Didn't know a C32 could give this much headache. Sorry to hear your woes man. Hope you get fixed with it soon. Like everyone mentioned check the essentials as well as the plug connector pins. As insame1 mentioned, google your issues and read all the listings that pop up. Go through them as fault diagnostics. That way you can iron them all out and hopefully report to us with the outcome and solution. Good luck
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Old Dec 18, 2015 | 12:06 PM
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Originally Posted by Khan 55
Didn't know a C32 could give this much headache. Sorry to hear your woes man. Hope you get fixed with it soon. Like everyone mentioned check the essentials as well as the plug connector pins. As insame1 mentioned, google your issues and read all the listings that pop up. Go through them as fault diagnostics. That way you can iron them all out and hopefully report to us with the outcome and solution. Good luck
Thanks will do. Its been raining here in NY the past few days. I'm anxious to get my hands dirty. Anyone have a ic pump for sale. The newer Bosch 010.
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Old Dec 18, 2015 | 12:10 PM
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I saw one for sale in the for sale thread on the other popular benz forum for 75$
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Old Dec 18, 2015 | 03:11 PM
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My money is on conductor plate........I'm surprised it was not replaced when the trans was out....thats the time to do it. They can cause your trans to get really flakey and can be had for like $200. If it's original that's my bet.
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