M157 Transmission Limits
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W211 E55, W210 E55, 94 Daihatsu Mira TR-XX, (Sold)W203 C55/C32, (Sold)04 S211 E320 Designo
M157 Transmission Limits
Hello! I was planning on buying a CLS63S AMG at the end of this year. My plan was to do an ECU tune (not sure on Stage 1 or 2 advice would be appreciated), full bolt ons, resonator delete, and a decat. My question is, how much power can the transmission handle before the clutch starts to slip? With my plans on the car would I have to upgrade any transmission parts? I've been looking around forums and trying some google searches but I haven't been able to find any information on the transmissions limits/what I would need to do. (Transmissions really aren't my area of expertise so any info would be much appreciated)
Last edited by markyoussef; Apr 5, 2020 at 07:25 PM.
Joined: Jul 2006
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From: Seattle
'19 E63S, ‘16 CLS63 RIP, '09 E63 Gone, '06 M5 Gone, '97 Supra TT Gone
800lbft of torque is as much as it can handle before slipping. You may or may not have to upgrade the trans depending on how aggressive your tune is.
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From: USA
m157 SL63
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Joined: Oct 2016
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From: Destin FL
2018 E63 AMG S
The MCT Speedtronic transmission can easily handle 1000 tq but many tuners stop around 800 for a safety margin. It is a common practice in engineering to build in a 20% safety margin. If you have any questions on what this trans can withstand I recommend that you speak with Jerry at Eurocharged.
Thread Starter
Member
Joined: Dec 2018
Posts: 103
Likes: 4
W211 E55, W210 E55, 94 Daihatsu Mira TR-XX, (Sold)W203 C55/C32, (Sold)04 S211 E320 Designo
I've been doing my searches on forums here and it seems like with a clutch upgrade (Either Weistec or AMS) they hold up well. End goal might potentially be a turbo upgrade so I'll probably be needing that.
