Occasional Transmission Issue :(
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Newbie
Joined: May 2015
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R500
Occasional Transmission Issue :(
Hey guys. I have recently purchased an '06 R500 for my wife and been having this occasional transmission issue. I have made a little research about it but just not sure what to call it so I decided to post a thread. My case, sometimes while driving, transmission doesn't shift at all and just keep revving higher and higher. I have to come to a stop, turn the car off and on, then it drives just fine. Also again occasionally when I come to a stop at a light or so, the car doesn't move in either D or R. I also have slight jerk on downshifts. Never tried manually shifting which is useless since my wife will never need it. What do you guys suggest I do? Thanks in advance.
Member
Joined: Dec 2010
Posts: 89
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2008 R350 4-matic
I'm having a similar issue and research tells me to take it to dealer. Have them install latest transmission software. If problem persists, I am looking at replacing valve body. $2800. I plan to take it in soon for service and will update. If they tell me it needs the $2800 repair, I'll just bite the bullet because the car fantastic and I can't buy a new car for $2800.
Super Member
Joined: Aug 2010
Posts: 986
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From: Kingsville Ontario (South of Detroit)
2003 S500 4Matic (SOLD) + 2004 S55 (SOLD) 2005 CLK 500 Cabriolet 2008 S 450
Is the car we're discussing a 5 speed or 7 speed. If it's a 5 speed I would suspect anyone trying to sell me a new valve body. If it's a 7 speed, maybe, bit IMO unlikely.
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R500
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From: Akron, OH
2006 R350
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Joined: Jun 2012
Posts: 229
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From: Akron, OH
2006 R350
So, I valve body or controller replacement is likely... a transmission replacement on the other hand is probably not likely.
Interestingly enough, it seems that servicing it with a fluid drain and filter replacement seems to keep things happy. We are on a 40k cycle and we are fine with 100k on it.
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