Has anyone had any experience with their cruise control working, as in it holds the correct speed and everything, except it surges? It's like the throttle inputs are not very smooth. It has done this with the 2 different actuators I have tried.

Could it just be the amp giving up? I wanted to get your opinon before I cracked it open to try to repair it.

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1998 E320 Wagon

1992 300D 2.5 TURBO

1991 560SEL M119.960

1986 300SDL TURBO

1992 500SL Parts Car

1991 420SEL Parts Car