W124 Alignement Questions - PeachParts Mercedes-Benz Forum

JamesDean · #1 05-15-2014, 09:12 AM

I had my 124 aligned at MBNO in December. The car drove very very well. I was extremely pleased. The alignment degraded (started pulling left on highways) over the winter for whatever reason so I took it back up in April. They re-aligned it and I had the same problem. They adjusted the tow a bit on 5/1 for me.

But...I'm still getting some left pull on the 300D. Its not as aggressive as it was before, but it still present. I still have to hold the wheel to the right in order to compensate for the pull when on the turnpike/highway.

I took a few more videos and pictures to illustrate:

Here is the wheel position when driving on the right side of the turnpike. Centered, no pulling. Drives wonderfully.
http://i.imgur.com/kNY55Fh.jpg

Here is the wheel position when driving in the center lane of the turnpike, forced slightly to the right. You can see that the cruise control stalk is more hidden than in the above picture.
http://i.imgur.com/zapEUoc.jpg

Here are some video showing the pull:
WP_20140502_001_zps3c77bafa.mp4 Video by JamesDean59 | Photobucket
WP_20140502_008_zps49ae4339.mp4 Video by JamesDean59 | Photobucket

All of the above pictures and video were taken on 5/2/14.

I put all the various alignment data into one spreadsheet....
http://i.imgur.com/faF1AzU.png

Additional here is the dates/mileage on all of the car's suspension/steering parts. The oldest parts being the lower control arm bushings (70K miles on them)
http://i.imgur.com/kRyqS5c.png

They suggested I swap front tires left to right. I did this and I don't feel that it had a significant change in the left-pull but I've started to notice some right-pull when in the right lane. Maybe it was there before and I didn't notice or maybe the swap caused it. Its not nearly as strong as the leftward pull.

Can someone explain to me what's going on here?