May just be the clutch gap is too wide. Should measure about the thichness of a credit card (snug).

If that is the problem, it is adjustable with special tools that most Autozone stores rent for free (hefty deposit required). It can be done with the compressor right in the car on the 126 (don't know on the 116); no disconnect at all, but you have to be a bit nimble.

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The Golden Rule

1984 300SD (bought new, sold it in 1988, bought it back 13 yrs. later)