Maybe the key isnt the clunk? Maybe the key is the hesitation and sort of grind noise that comes before the car moves.

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1993 Benz-190E-2.6 liter

Be sure to also check the front flex disc. Does the transmission go into drive smoothly with no hesitation? When was the trans. fluid and filter last changed?
Has the differential fluid been checked or changed?

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1993 190E 2.3
2001 SLK230
1971 LS5 (454) Corvette Convertible

Can I check the front disc visually without the car being on a lift?

It seems to stick or grind a bit when starting in first gear from a stop. I noticed the rpms go up till it seems to snap in to place. The clunk sound seems to come from the rear though. Maybe they are not directly related? I couldnt tell if there was anything wrong with the rear disk visually by sliding under the car. Isnt there some sort of drive shaft bearing? Could that be the cause?

The front disk was changed aroound 50k miles ago. The tranny fluid and filter around 40k miles ago.

If the car seems to drive ok when not starting off in 1st gear from a complete stop would it be crazy to drive it 10-15 miles to a mechanic?

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1993 Benz-190E-2.6 liter

I was able to slide under the car a little bit and take some pictures of the front disk. Does anything look out of order with the front disk? Should those bolts be seated that way?

Attached Thumbnails

       

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1993 Benz-190E-2.6 liter

From what I know those mounting bolts have all shifted quite abit.
Wear, misalignment or just plain bad all could cause that.

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1985 300D 198K sold
1982 300D 202K
1989 300E 125K
1992 940T

"If you dont have time to do it safely, you dont have time to do it"

"The democracy will cease to exist when you take away from those who are willing to work and give to those who would not."

Thanks bob I was hoping the front disc would not be the problem but if I can be sure that is the problem I would feel better knowing for sure.

Do you think that front disc could be causing the symptoms that I mentioned? Did you see any problem with the pictures I posted of the rear disc area?

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1993 Benz-190E-2.6 liter