Transmission
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Member
Joined: Aug 2015
Posts: 141
Likes: 9
From: mickleton, NJ
2014 E63s,2004 E55, 2006 STS-V, 1969 Camaro RS/SS 396, 2012 Centennial GS Corvette
Transmission
Dont know much about these cars but learning as i go along. Now that im doing work to my 04 E55 is there anything i need to know about the trans how good are they how much power can they handle. Any info would be appreciated.
Thread Starter
Member
Joined: Aug 2015
Posts: 141
Likes: 9
From: mickleton, NJ
2014 E63s,2004 E55, 2006 STS-V, 1969 Camaro RS/SS 396, 2012 Centennial GS Corvette
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Joined: Dec 2008
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From: Socal, Chino
E55 2006 / CLS55 / S450 / Jag XKR2011
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Joined: Mar 2009
Posts: 937
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From: Alpharetta Georgia
2006 E55, 2006 saab 93 aero, 2010 glk 4m
The trans in these cars are solid when well taken care of. Mine is an 06 fluid changed every 40k. Lasted 151k miles with quite a lot of back to back passes at the strip and about 40k miles at 480whp. It started slipping and i found shavings.
Opened her up and rebuilt it and was impressed to see only 1 clutch pack (K2) was smoked. Changed everything anyways while in there.
Did an OEM rebuild. Some of the part numbers that came in my October 05 built car have been replaced .
Its been 10k miles since then and running strong. Check the fluid to make sure there is enough in there after the service and allow it ample time to cool down after spirited driving before shutting it off. Like all transmissions, heat is its worst enemy. Might consider adding an auxiliary cooler.
Opened her up and rebuilt it and was impressed to see only 1 clutch pack (K2) was smoked. Changed everything anyways while in there.
Did an OEM rebuild. Some of the part numbers that came in my October 05 built car have been replaced .
Its been 10k miles since then and running strong. Check the fluid to make sure there is enough in there after the service and allow it ample time to cool down after spirited driving before shutting it off. Like all transmissions, heat is its worst enemy. Might consider adding an auxiliary cooler.
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Joined: Dec 2006
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From: Florida-Germany-New York
2004 E55,1969 300SEL6.3,2011 ML350 BlueTec Diesel,2005 ML400 CDI
The proper ATF is critical for long life. Fuchs 4134 is pricey, but I always replace it every 15K. The improvement in performance over the original 134 ATF was astonishing. My E55, at about 70k miles, is used as an autobahn cruiser
punctuated with brief demonstrations of brute power or an occasional run around the Nordschleife. To date there has been no discernible deterioration in performance.
