500SEL (126.037) V8-5.0L (117.963) (1984)
3
Remove drive pinion (129) for mechanical tachometer. Remove lock (131), remove shaft (130) and pinion (129).
4
Pull radial sealing ring (132) out of rear transmission cover (70).
NOTE: To facilitate removal, screw a hex. bolt M 12 into radial sealing ring and clamp into vise. Pull out radial sealing ring while applying light
blows with a plastic hammer against transmission cover.
Assembly
NOTE: The punch is self-made according to specified dimensions.