RA81722

Was just curious what the power limit of the new 7 speed auto that’s in the sl65 2013 and
up? There isn’t much info on this tranny or even it’s internal code name.

The old 5 speed handled 796 pound feet, so it’d be interesting to see if this one can handle even more.

okbarnett

the trans for the v12 is the 7G it is not the same as the 7 speed MCT that all the other amgs use

https://en.wikipedia.org/wiki/Merced...c_transmission

http://media.daimler.com/marsMediaSi...ml?oid=9904482

RA81722

yes im well aware of that and I didn’t say it was the same.

DT85205

I am looking to purchase a SL65 2009-2013 from a private owner.
Tired of the dealer games.
Have immediate funds available for the right car.
480-255-1115 Don.
This is my business line so leave a message if no answer.
all calls returned.
Finders fee paid for information leading to a purchase.

Quadrobenz

The MB warranted torque limit for both the 5 and 7 speed units in the V12 cars is 1,000N-M (newton-meters.) That translates to 738ft-lb of torque. Tuners can bypass that limit with current tunes for 7sp cars. The older 5sp cars were easier for tuners to reprogram. I am not aware of a specified power limit for the transmissions. The highest factory horsepower V12 cars were the Black Series SL's but even those had a max of 738 ft-lb torque. I had two of my older V12 biturbos tuned to supposedly slightly over 800ft-lb peak torque and put over 60k miles on both with no issues.