I have now worn out a set of tires in less than 40K because my right rear eats them from the inside out.

The set I just removed was down to the belts on the innermost edge of the tread.

When you look at the car from the rear you can see that the right rear leans in a bit more at the top.

I measured the fender opening on both sides and it is actually a little over 1/2" higher on the right side.

My question is whether or not there is a suspension component on the rear that could have worn out and allowed the wheel to come to be in this position.

If I had rotated the tires properly I would have got more miles from the set obviously but they were directional so I could only rotate front to back on the same side. I did this a few times but it was 15K since my last rotation.

The set that came on the car also wore the same way on the same wheel.

The car has a salvage title and it had damage to the front and rear so I haven't ruled out that has something to do with it but the right rear wheel obviously is canted inward at the top more than the left rear that shows no such wear.

Any help is appreciated.

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1993 W124 300D
-297K on the clock as I type this.

probably a bent rear suspension arm

find a good 4 wheel alignment guy and he can tell you which one ~~~ arms are somewhat cheap

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1989 300ce smoke silver / brazil, in a constant state of flux ~~~

could also be a broken spring, that would be easy to check, look up high.

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This post brought to you by Carl's Jr.

Sagging springs can cause this, as can bad bushings, very common is the lower wheel carrier bushing (actually a bearing, $$ or a moderately difficult DIY, connects the lower A-arm to the wheel carrier).

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Gone to the dark side

- Jeff

The reason I don't think it's a spring is that side actually rides a bit higher than the other side.

I also think I have discovered the reason for the excessive wear.

I replaced my injectors a few months back and at about the same time I noticed what I thought was my transmission slipping in first gear.

I now know that I have been spinning my tires.....

When the "slipping" occurred was right about the time the turbo kicked in.

I have confirmed however that I have been spinning my right rear upon acceleration and the left one too on occasion....

I clearly have something else going on in the right rear but spinning the tires just magnifies the problem.

I have concluded that I drove non-turbo W123's way too long.

I floor it as a matter of routine and it's wearing out my tires.

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1993 W124 300D
-297K on the clock as I type this.

If there is a lot of smoking burning rubber emanating from the wheel wheel then your turbo is producing too much boost.

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1993 W124 300D 2.5L Turbo, OM602.962
2000 Chevrolet Cavalier, 2.4L DOHC
2002 Ford Explorer, 4.0L SOHC
2005 Toyota Prius, 1.5L

http://www.fuelly.com/sig-us/40601.png

I had a broken suspension arm in the back. Had local shop replace the LCM and the arm. It came from a Pick and Pull. So far so good. My rear camber is sitting at about -1.5 deg. I'm having a problem with the front Camber. I've got new springs and struts to put in in the next few weeks.

Heck its got 300K on the odometer.

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92 300D 2.5L OM602 OBK #59

It's not smoking but the tires are breaking traction.

They aren't squealing either.

However, I did do the pressure actuated wastegate actuator mod.

Could I be producing too much boost?

I don't overheat or anything.

How would I go about installing a boost gauge? I've never done anything like that.

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1993 W124 300D
-297K on the clock as I type this.

Was it broken because of rust?

What were the symptoms?

I have new(30K miles) struts and shocks that are still good.

I do have the telltale squeaks coming from the rear when I ingress and egress from the car. I also sometimes hear them creak when idling around a parking lot.

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1993 W124 300D
-297K on the clock as I type this.

Wheel carrier bushing likely. Squirt some oil in it, see if the squeak temporarily stops.

Too much boost I believe was intended to be funny, maybe not, but it's unlikely to cause wheelspin. My experience with that engine is that wheelspin is possible on takeoff on smooth pavement, but not common. More likely wheelspin indicates bad tires (hard, cords showing, etc.), sudden clutch engagement, or a high torque-converter stall.

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Gone to the dark side

- Jeff

I'm not sure why it had snapped/cracked near the mount. Had uneven tire wear rear passenger side. Wore out the inside edge of the tire. looking at it it didn't look excessive. When they attempted the alignment/adjustment it kept jumping out. They found the cracked arm. The lcm was also damaged. (Didn't know the car was in an accident) Vehicle had clear carfax. but you could see where had been stretch on the rack.....

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92 300D 2.5L OM602 OBK #59

A good whack against the curb will do it. Best get alignment checked on all 4 wheels & then decide what to do.

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Grumpy Old Diesel Owners Club group

I no longer question authority, I annoy authority. More effect, less effort....

1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
1968 Ford F750 truck. 6-354 diesel conversion.
Other toys ~J.D.,Cat & GM ~ mainly earth moving