Flex Disc - (Torsion Style) on Front Driveshaft Improved

TO: OUR MERCEDES-BENZ PASSENGER CAR DEALERS

Date: July 1992 (supersedes S.I. 40/130, February 1994)

Ref. No. MBNA 41/1c

Revision: 100 and 110 mm flex disc included.

SUBJECT:
ALL MODELS - INSTALLING LIMITED TORSION FLEX DISC ON FRONT DRIVESHAFT




The flex discs, particularly the front flex disc (transmission-side), may be subject to very high dynamic and thermal loads depending on driving style. Therefore, the flex discs (front and rear) must be inspected every 30,000 miles on all models as a part of routine maintenance. Damaged or cracked flex discs must be replaced.




A new limited torsion flexible disc (Fig. 2) is now available for those models listed. The new limited torsion flexible disc is more durable than the previous version flex disc (Fig. 1) and should be used whenever a flex disc requires replacement.

Note:
Limited torsion flex discs may not be interchanged on vehicles with different size bolt circles (ie: do not install 100 mm flex disc on vehicle originally equipped with 90 mm disc).

Warranty Information

Operation: Driveshaft Flex Disc - Transmission side. Repl.

Damage Code Operation Number

41008 08 Centering sleeve (worn out) 1)
41033 10 Flex disc (worn) 1)
41033 38 Flex disc (loose) 1)

1) See latest Time Guide edition for operation number and time application and combinations thereof