Quote:
Originally Posted by deanyel
I've had techs tell me it was the worst they ever built (until the .9 surpassed it). I've always thought it was a candidate for the worst transmission ever built by anyone. There have multiple stories on forums over the years of individuals dealerships having done overhauls/major work on over 5,000 of them - at a single dealership, and that was years ago. No doubt it got better over the years but the 722.6 was a major blow to Mercedes' reputation, right up there with wiring harness and ASR.
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I have heard from several friends who work on MBs (dealer techs, indy shops), and they all say the 722.6 is bulletproof.
Met a guy in SoCal with an 03 E55 thats got 200k miles.... Hes been running a pulley, headers, tune, and modded cooling system for 90k miles, making about 525RWHP/600RWTQ.... And the transmission has yet to give out.
The car has made quite a few 10 second passes with drag slicks!