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Old 02-09-2001, 10:19 PM
Registered User
Join Date: Jan 2001
Posts: 12
I posted this on wheels and tires but got no response. Hope it is more appropriate here.

In July I bought a 93 300E from a local individual. He told me that the tires were "new" and they looked new.
According to the sales slip he left in the car, the set of MXV4s was purchased in
February, 2000 about 10,000 miles ago (3000 miles before I bought the car).

After driving it for several months, the steering developed a "wander", i.e. you would cross the
crown of the road or hit a bump and the steering point would change. At the same time I noticed
edge wear on the front tires. I traced the problem to a bad drag link and replaced it. After the
repair I took the car to a local tire shop for an alignment. They found a bad tie rod end I had
missed, replaced it, rotated the tires, and aligned the vehicle (4-wheel). This was done in early

Around Christmas my daughter told me that the left rear tire looked worn. I looked at it, and sure
enough, the wear looked excessive. But, I forgot about it and didn't do anything.

Last week, my wife told me that the rear tires had cord showing through. I looked at them and
sure enough, the rear tires were scrubbed off slick. Due to the previous edge wear, the cord/belts
were visible at the edge.

I went back to the tire shop and they re-checked the alignment. It was off only slightly (from their
specs)in the front and within tolerance in the rear.

I compared their specs the the data in the MBUSA 124 Maintenance CD-ROM and with the
exception of toe, the specs appear compatible. I can't easily compare toe because the CD gives
it in degrees and the tire shop gives it in inches.

The tire shop's printer wan't working in December so I didn't get the typical specs/initial/final data
for that alignment.

The tire shop replaced my rear tires at 50% off, so I'm OK there, but I'm concerned that in another
month or two I'll be back with slick tires again.

I don't think it is a frame problem, because the tires that we moved to the front had been on the
rear for as long as I owned the car (maybe since installed in February) with nominal wear. After
6-10 months on the rear and one month on the front, they measured 5/32 tread depth while the
others with 6-10 months on the front and one month on the rear were slick. I have followed the car
while driving down the road and there is no apparent tracking problem.

Any ideas?


Al Waschka
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Old 02-09-2001, 10:47 PM
Jason M.
Posts: n/a
Possible Suspension problems


Were the tires worn only on the inside or outside? or was it worn evenly over the entire width of the tire? This is very important in determining whats wrong
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Old 02-09-2001, 11:05 PM
Registered User
Join Date: Jan 2001
Posts: 12
Thanks for the reply.

Well, its kinda hard to say what the wear pattern was while on the rear. The tires had inner and outer edge wear from the bad tie rod and drag link when they were moved to the rear. But I think the wear on the rear was uniform across the tire. Of course, the edges wore through first, but I think that was becase of the edge wear while on the front.

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Old 02-09-2001, 11:09 PM
Jason M.
Posts: n/a

In that case, I would say to watch future tire wear patterns on the new tires. I have also seen very odd tire wear come from very worn bushings in the multi link suspension arms.
Good Luck,

Jason M

86 300E 88k miles
99 Crew Cab Chevy Dualie 7.4L
ASE Parts Specialist
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Old 02-10-2001, 10:24 PM
Registered User
Join Date: Apr 2000
Posts: 412
Take it to a shop that specializes in Mercedes Benz suspension work and alignment. There are a lot of shops that can't get your Benz aligned properly and to your satisfaction. If you have worn bushings they can align it properly. It should not wander if the suspension is tight and aligned properly.
1990 190E 2.6
1996 Grand Voyager 3.3
1985 Mustang GT 5.0 5 SPD
1982 Suzuki GS 750T
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