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Old 05-02-2007, 07:27 PM
Roncallo Roncallo is offline
88Black560SL
 
Join Date: Oct 2004
Location: CT
Posts: 3,510
OK I looked at my transmission and the only numbers are 722.621. The sales designation I was refering to is described on page 1 of the Mercedes Benz publication "Model Year 1996 Automatic Transmission 722.6 Introduction to Service". Of course in true Mercedes Benz tradition they dont tell you anywher the number can be found. Also the exanmple they give you in the book is W5A580 which means 580 Nm torque rating. My SL600 has 570Nm/3800 RPM = 421 ft-lb. So my guess is that my SL600 trans is W5A580 good for 580 Nm.

Also one place I have seen the W transmission designation used was in Mitchel Automotive Manuals. Where my 560SL transmission was refered to as a W4XXXX.

John Roncallo
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