Hi All,

I've got a BROKEN front flex disk. I noticed it while changing the transmission fluid during some much needed PM. There was only a slight vibration when flooring the gas pedal that indicated something might be awry.

I just bought this car a few months ago and the previous owner had mentioned that he had just had one of the flex disks replaced. The broken one looks new so I'm wondering if the shop that installed it (assuming it was the one replaced!) may have done something wrong. That said, I can't find a procedure in my "Bible" or on the list that discribes replacement of the flex disks. It appears that perhaps file E:\Program\Chassis\41-050.pdf on my Service manual CD might cover this procedure but for some reason it is the ONLY one that won't load.

Is changing the flex disk as simple as it looks or does someone know of a detailed procedure for this repair somewhere. If anyone can share 41-050 with me (if it indeed covers this repair) it would certainly be appreciated!

Thanks,
Bob Kopicki
bobandpeni@sbcglobal.net

I believe that I've read here about them being installed backwards, resulting in failure.

It is as easy as it looks. unbolt the six bolts and just replace the disc. washers go against the flex disc itself and the divits fit into their respective flanges in the driveshaft and trans.

__________________


1980 500SE/AMG Euro
1981 500SEL Euro
1982 380SEL
1983 300TD
1983 500SEC/AMG Euro
1984 500SEC
1984 300TD Euro
1986 190E 2.3-16
1986 190E 2.3
1987 300D
1997 C36 AMG
2003 C320T 4matic

past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350

Thanks folks for all the help!

By the way, what are the torques for the flex disk bolts? Loctite?

Thanks again,

Bob

Would a bad flex disk result in a high frequency vibration, almost like a tuning fork? I notice this at around 60mph, mostly when accelerating.

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1985 380SE Blue/Blue - 230,000 miles
2012 Subaru Forester 5-speed
2005 Toyota Sienna
2004 Chrysler Sebring convertible
1999 Toyota Tacoma