Thought my issues was flex discs but I believe was wrong

Put car on jack stands and watched the drive shaft. It seemed to turn normally without issue.

I have narrowed it down to a few possibilities:

Low differential fluid (it hasnt been checked in 50,000 miles or more)

Brake issue on drivers side

Bad differential or axle issue on drivers side. There are 2 metal wheels. One on each side of the differential box. 1 seems fine. 1 seems a tiny bit off or warped.


Hesitation only occurs at stop lights or red lights. Doesnt occur unless starting from a stop when I had foot on brake.

Drives perfectly once moving.

I put the cars rear end up on jack stands and reved the wheels. Problem only noticable after tepping on the brake. Felt brake vibration on brake pedal when I would rev the weehsl hard and then hit the brakes.

I took the wheels off but couldnt tell if there was a brake issue.

I tried to check the differential but those drain plugs are in tight and I dont have a 14mm hex socket. I may take it in to have the differential fluid changed unless anyone has any other ideas. I have heard there are some real good differential additives out there. Does anyone recommend any?

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1993 Benz-190E-2.6 liter