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Wonky Toe Angle After New Front End

2.6K views 11 replies 9 participants last post by  VAGguy  
#1 · (Edited)
**********************
**PROBLEM SOLVED**
Duh. I had the tie rods installed upside down. Not possible on other cars I have worked on, due to a tapered shaft, but these have straight shafts and can be installed either way.
**********************

Something is going on in my front end and I can’t figure it out.
I recently installed new rear shocks, front struts, front control arms (all) and rod ends. All parts were Ocap from Blauparts. I did one side at a time and was very careful to compare the old with the new before installing. Everything went together fine, but when I took it in for an alignment, they told me something weird was going on. The toe angle was drastically changing, as the car’s weight was applied/removed.

I brought it home (slightly scary drive) and looked underneath while my wife turned the wheel from side to side. The only thing strange that I noticed was that the car would raise/lower quite a bit on each side as the wheels reached their limits.
I also observed how the toe angle changed. With the wheel straight and the tires off the ground, the tires looked straight. As I lowered the tires back onto the ground, both toed in quite a bit (~5 degrees).
I couldn't see anything else obvious.

I talked to a tech at Blauparts and he had not heard of this problem. I double-checked the old vs. new parts and everything looked right. I also made sure that I hadn’t put any of the left side parts on the right and that I got the sway bar links assembled in the correct orientation.

What have I screwed up? Any ideas are appreciated.
 
#2 ·
I don't know if there's a way to screw up the installation unless:

1. You swapped the front and rear upper control arms (the lowers will only work one way)

2. The parts supplied in the kit were the wrong ones (compare the lengths of the old arms against the new ones).

The front suspensions on these cars are basically fixed points so I don't see how the toe could change that drastically using the proper parts installed in the correct location.

I inquired about the OCAP kits for Audis in some of the Audi forums and most people didn't think much of them with respect to some of the other brands. I've never used them personally, but I have tried kits from Meyle, Febi-Bilstein, and FCP Euro. The Febi-Bilsteins seemed to last much longer than the Meyles. The FCP Euro parts are currently installed and don't have a lot of miles on them yet so the jury's still out.
 
#3 ·
when the tires are on the ground and they are toe-in thats normal cus while you drive the toe-in moves out closer to 0 degrees toe-in. When the car is stopped im not quite sure how much toe-in you should have. If the car is going straight and you are not touching the wheel than it should be fine.
 
#6 ·
I did a quick alignment using string, just to check what the shop told me they were seeing and now what they told me doesn't make much sense. After making some adjustments to the toe, the car is driving much better than it did out of the shop, so I will take it to a VW specialist and see what they think.

The fact that the toe still changes so much (several degrees) with up/down wheel movement still bothers me. Does anyone know what is expected/normal?

Thanks
 
#7 ·
So, the car felt pretty good around the neighborhood, but when I went faster (over 35), it didn't feel so good. Still jumping around when I hit a bump or uneven part of the road.

The only other thing I can think of is if I didn't get the springs and spring seats clocked correctly, but I don't know how much of an impact that can have.
 
#9 ·
I have the same similar issue with my car right now after replacing my control arms (both upper and lower) tie rod ends, and sway bar links. You might check your sway bar links to insure they are installed correctly. They look like they can be installed two ways but have a specific direction that they must be installed. I originally had mine backwards (duh!) and they were binding the suspension.
 
#11 ·
**
PROBLEM SOLVED
Duh. I had the tie rods installed upside down. Not possible on other cars I have worked on, due to a tapered shaft, but these have straight shafts and can be installed either way.
**

Something is going on in my front end and I can’t figure it out.
I recently installed new rear shocks, front struts, front control arms (all) and rod ends. All parts were Ocap from Blauparts. I did one side at a time and was very careful to compare the old with the new before installing. Everything went together fine, but when I took it in for an alignment, they told me something weird was going on. The toe angle was drastically changing, as the car’s weight was applied/removed.

I brought it home (slightly scary drive) and looked underneath while my wife turned the wheel from side to side. The only thing strange that I noticed was that the car would raise/lower quite a bit on each side as the wheels reached their limits.
I also observed how the toe angle changed. With the wheel straight and the tires off the ground, the tires looked straight. As I lowered the tires back onto the ground, both toed in quite a bit (~5 degrees).
I couldn't see anything else obvious.

I talked to a tech at Blauparts and he had not heard of this problem. I double-checked the old vs. new parts and everything looked right. I also made sure that I hadn’t put any of the left side parts on the right and that I got the sway bar links assembled in the correct orientation.

What have I screwed up? Any ideas are appreciated.
I’m having this exact same issue with my 2003 vw passat I replaced everything in the front end and now it does exactly what you’re talking about if you get any info if you could let me know I’d appreciate it
 
#12 ·
They said they had their tie rod ends on upside down. The ball joint stud of the tie rod end should be facing up when installed into the hub carrier with the retaining bolt in from the top.

The tie rod end in question is the one in the below picture "ball joint" and the correct orientation.

Image
 
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