rear clunk, tranny? - PeachParts Mercedes-Benz Forum

vwbuge · #1 06-25-2002, 12:20 PM

OK, I have posted this before, any other ideas. Clunking coming from rear end. I replaced all the rubber hangars on the exhaust and the two rear shocks. What else besides sway bar end links, I am going to replace them this week but need other ideas in case that isn't it. Also, does your tranny shift a little slow between reverse and drive or shifting form Park. It seems I have to wait unusually long before gear engages.

#2 06-25-2002, 05:00 PM

There is one possibility that shouldn't be overlooked. My brother found this on his Nissan. He had a loud clunking that came from the rear and could not locate it. Loudest when backing or when moving slow. Took it to a mechanic or two and the gave him a diagnosis of bad shock towers or some such as that.
He finally took it into a tire store and had an order to go with new rear shocks . Tire store called him and asked if he had run over something. Said there was nothing in the shocks and the problem was the broken cords on both rear tires. He replaced both tires and the clunking went away.
The thing is, that I looked it over with him a few times and could not see any obvious tire damages. He said he had the tire store show him and he could hardly tell anything, except that there were a couple of slight bulges. Nothing you would normally worry about. But the tires did cause the clunking.

surfblau · #3 06-27-2002, 12:35 AM

When I first got my 300TD, there was a very distinct clunck coming from somewhere like the differential when I went from D to R or vice versa. Sometimes those shifts were noticably pregnant.

Synthetic differential oil and synthetic trans fluid and there is no more noise....

When I did change those fluids, it was clear that it had been some time since anyone else had.

Any more specifics on the nature/conditions that cause the clunking?

vwbuge · #4 06-27-2002, 08:18 AM

I guess I misrepresented the question. The clunk isn't from the tranny itself. The clunk comes when going over bumps and is in the rear of the car. I am trying sway bar links to see if that helps. The tranny itself is just slow to shift when backing out of a parking lot, like shifting into reverse......waiting.....engage...back ou, then shift to drive....waiting.....engage....

MVK · #5 06-27-2002, 08:53 AM

its mostly sway bar link or exhaust hitting the body when going over the bump.
By the way how are the rear shocks. Hope they are not busted. My gut feeling still is with swaybar links.

MVK

vwbuge · #6 06-27-2002, 09:11 AM

Both shocks were just replaced, I put all new rubber hangers on the exhaust.

surfblau · #7 06-27-2002, 02:05 PM

And they only cost around $8.50.

goldenbear · #8 10-09-2002, 05:01 PM

Just received my sway bar links and plan to replace this weekend. Can someone please walk me through the "safe" method for replacement? What's the torque spec on the bolts? I have the W126 CD, but haven't been able to locate the applicable job. Thanks.

MVK · #9 10-09-2002, 08:23 PM

Its simple.

Loosen the 2 bolts on the sway bar link connection on both side, then Jack up the vehicle in the center, Disconnect the sway bar links by completely removing the loosened bolts, replace with the new ones and tighten to the specific torque. I just hand tightened it to its max without excessive force, and then checked again after a week for tightness.

Its a simple job.
If you want the Pdf file for this job send me your e-mail address at mvkaneria@excite.com and I will send you the file. But mine is a 1985 123 chasis. If you have 126 cd look under suspension and look under chasis ---> Suspension
----> "removal and installation of torsion bar on rear axle"
MVK