Can anyone tell me the difference between a 1985-500SEL transmission and a 1991-420SEL Transmission...Can the 91-420 transmission be used in the 85. They are both 126's....Jim

__________________
James A. Harris

The 500sel transmission is Mercedes part #126-270-37-01, or #126-270-08-00 or #126-270-59-01 or #126-270-49-01 and all are a 722.311 while the 420sel is Mercedes part #126-270-29-00 which is a 722.355 according to:
http://www.autoshoppingcenter.com/transmissions/MERCEDES400transmissions.html

You could also ask these people:
http://www.europeantransmissions.com/Tranisite/mercedes.htm

or

http://www.jie.com/Mercedes/mercedes_benz_transmissions.htm

It looks like they are different.

__________________
1989 300CE Astralsilber/Schwarz
1992 300CE Schwarz/Schwarz

Another source to check with is Silver Star Transmissions 800-369-6601

Yes, you can use that transmission!!! The only differences are in the valve body for slightly different torque that the larger 560 engine develops.

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

Will a person notice any differences if they were to do a swap? I wanted to get a stronger transmission for my 1989 300ce, like maybe a400e or 500e transmission, but Mercedes insisted on using the exact one on the car, the 722.358, and so did the rebuilder. I ended up with a 722.358 2nd gear start with the new updates.

__________________
1989 300CE Astralsilber/Schwarz
1992 300CE Schwarz/Schwarz

The trans from a V-8 will bolt to the M103 engine!

One from a M104 engine would!

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

So my question to you, is which transmission would have been the best one I could have used for my 1989 300ce?

__________________
1989 300CE Astralsilber/Schwarz
1992 300CE Schwarz/Schwarz