SLK55 (R171) 2004 - 2010: SLK200K, SLK280, SLK350, SLK55, SLK55 Black Series

Transmission Problems?

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Old Nov 15, 2005 | 11:31 PM
  #1  
nishi's Avatar
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Joined: Nov 2005
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From: Boston
2006 SLK55 AMG
Exclamation Transmission Problems?

Yes, you're reading correctly. Over the last weekend, my brand new SLK55 AMG in silver was taken on a road trip to my cousin in Long Island with a stop in new york. on the night of saturday, i go around a corner, obviously downshifted before, get around it, and try to calmly drive up the hill.

out of NOWHERE... i just rev up, but stop moving - my car gets slower and i stand in the middle of a backstreet with a car that doesn't go into gear. Reverse didn't work, the other 3 Drive modes didn't work - yes, my transmission died after 2,000 miles despite a careful 1,500 mile break-in.
turns out, the transmission has to be COMPLETELY replaced, i couldn't believe it.

as a 'sorry', my dealership let me trade it in for another new 2006 SLK55 AMG , obsidian black and beige nappa leather, however, just wanted to let you guys know about this problem.

peace

Last edited by nishi; Nov 15, 2005 at 11:40 PM.
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Old Nov 16, 2005 | 02:38 AM
  #2  
Yellow R1's Avatar
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Joined: Jun 2004
Posts: 770
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From: Silicon Valley, CA
'93 RX-7, SLK55
Originally Posted by nishi
Yes, you're reading correctly. Over the last weekend, my brand new SLK55 AMG in silver was taken on a road trip to my cousin in Long Island with a stop in new york. on the night of saturday, i go around a corner, obviously downshifted before, get around it, and try to calmly drive up the hill.

out of NOWHERE... i just rev up, but stop moving - my car gets slower and i stand in the middle of a backstreet with a car that doesn't go into gear. Reverse didn't work, the other 3 Drive modes didn't work - yes, my transmission died after 2,000 miles despite a careful 1,500 mile break-in.
turns out, the transmission has to be COMPLETELY replaced, i couldn't believe it.

as a 'sorry', my dealership let me trade it in for another new 2006 SLK55 AMG , obsidian black and beige nappa leather, however, just wanted to let you guys know about this problem.

peace
Whoever told you the entire tranmission had to be replaced is misinformed. Its your electronic transmission control module. Mine went bad in the first few hundered miles (exact same issue - I knew what it was instantly....Sure enough it was replaced & bingo - issue gone). Its an electronic failure, not mechanical one, and the root cause is a faulty (outsourced) tranny control module. Its a simple swap out & its fixed.

-Matt
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Old Nov 16, 2005 | 10:17 AM
  #3  
novabenz's Avatar
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Joined: Sep 2005
Posts: 184
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From: Radnor, PA
2009 C63
Thumbs up

Yellow R1:
Thanks for the heads up on that problem.
Hopefully I won't encounter it anytime soon.
I can't imagine driving and losing the transmission in a car - definately a very frustrating event!!
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Old Nov 17, 2005 | 03:36 PM
  #4  
Shark's Avatar
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Joined: Oct 2004
Posts: 165
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'05 SLK55, Obsidian, black/red, light and premium pkg., COMAND with nav, airscarf, Sirius
I had the same problem in my '05 '55, and replacing the trans valve body (which I'm told includes the control module) did cure the problem. This was about 4000 miles ago, and it appears to have cured the issue. I am having downshifting problems with the gear shift lever, but I beleive that it's unrelated to the first problem.
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