Transmission acting funky
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Joined: May 2014
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From: Jersey City, NJ
2001 C320 w/ Sprt Pkg
As i remember; its M6X30,
#: "140 990 46 01" or "003 990 02 12" or "002 990 53 03",,
Attachment 293225
ECStuning got them: http://www.ecstuning.com/ES1688417/ES1617053/
ZAYED,,
#: "140 990 46 01" or "003 990 02 12" or "002 990 53 03",,
Attachment 293225
ECStuning got them: http://www.ecstuning.com/ES1688417/ES1617053/
ZAYED,,
I found them at AutohausAZ, along with everything else I needed to do my transmission service.
Thread Starter
Senior Member
Joined: May 2014
Posts: 293
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From: Jersey City, NJ
2001 C320 w/ Sprt Pkg
A big thank you to AutoHausAZ for sending me the correct parts and to Javvy for the service on my transmission.
However, after the service, I must say that not much has changed. We dropped the pan, changed the filter and drained the fluid 3 times. Fluid was brown originally and now much clearer and pink but it doesn't shift much better. It is still pretty harsh between 1>2, 2>3 is not as bad, but still noticeable. Downshift of 3>2 is a bit choppy at times, and 2>1 makes an odd "clunk" noise in the rear.
I have tried the trans adaptations reset, and I have cleaned the TCU and harness to no avail.
What else should I look for? Flex discs? Trans mount or differential mount?
However, after the service, I must say that not much has changed. We dropped the pan, changed the filter and drained the fluid 3 times. Fluid was brown originally and now much clearer and pink but it doesn't shift much better. It is still pretty harsh between 1>2, 2>3 is not as bad, but still noticeable. Downshift of 3>2 is a bit choppy at times, and 2>1 makes an odd "clunk" noise in the rear.
I have tried the trans adaptations reset, and I have cleaned the TCU and harness to no avail.
What else should I look for? Flex discs? Trans mount or differential mount?
Thread Starter
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Joined: May 2014
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From: Jersey City, NJ
2001 C320 w/ Sprt Pkg
Would the above also make 1st gear act up while driving slow and accelerating (like in traffic, and stuff) I feel like it lets go and when you get on it, it jerks into speed and then jerks back when you let go. All other gears OKAY as far as stop-and-go is concerned.
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From: Jersey City, NJ
2001 C320 w/ Sprt Pkg
Update: $900 to MB later to replace both flex discs, bushings and trans mount and it's shifting a bit better. The big change should come when they do my motor mounts. Parts are on order, about $690 to do them all at MB. It still has the odd little jerk when slowing down below ~10MPH, but we'll see what happens when they replace the motor mounts. Mine were collapsed, flex discs cracking and trans mount weak.
Thread Starter
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From: Jersey City, NJ
2001 C320 w/ Sprt Pkg
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Thread Starter
Senior Member
Joined: May 2014
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From: Jersey City, NJ
2001 C320 w/ Sprt Pkg
Motor mounts went in today, and low and behold, my trans connector bushing thing-a-ma-bob was leaking, so they replaced that too. I have only had the 20-30 minute drive home to test it out, but it does feel better. More responsive, so quiet and calm at a red light, and the shifts seem to slide right in. Tomorrow it will get the full test to check for symptoms, but so far so good!
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Joined: May 2014
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From: Jersey City, NJ
2001 C320 w/ Sprt Pkg
Update: Finally got some decent driving in and low and behold........same issues. I'm starting to believe it may be my subframe bushings or something in the back. Essentially, when I'm coming to a stop, it does this "click" and then a jerk you can feel in the car. The vehicle itself does NOT jerk forward or backward, but it creates enough movement where you feel it in the cabin. It also seems to have issues with the way it managers power at low gears. If I'm doing under, say, 10MPH, and I let go of the gas, it will boggle down and then when I press the gas again, it comes back to life and jerks itself back.
The only thing the repairs I did fixed, was tighten up the shifting, and even that is still buggy.
I'm not sure where else to look for a solution.
The only thing the repairs I did fixed, was tighten up the shifting, and even that is still buggy.
I'm not sure where else to look for a solution.
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