Transmission Change
09-21-2017, 12:51 AM
#1
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2005 MB CL55
Transmission Change
I have a 2005 CL55 and wondered if the MB 7-speed transmission would fit and function in the car in lieu of the current 5-speed? I'm also thinking of installing an underdrive pulley for added hp.
09-21-2017, 05:03 PM
#2
Out Of Control!!
Nope and you would be giving your self a huge costly problem! FYI you need to do loads of reading before thinking of the viability of such projects. Spend more time with the family!
10-04-2017, 10:51 PM
#3
Senior Member
The 722.6 5 speed transmission is more powerful and can handle more torque than the 7 speed and the 7 speed is loaded with problems mostly valve body. That's why the CLS 500 has the 7 speed but the CLS 55 AMG has the five speed. And it's bulletproof. Probably the best transmission ever produced by MB. Don't ask for a real expensive headache.
