Wheel alignment query...

Author
Discussion

Lannister902

Original Poster:

1,540 posts

103 months

Monday 18th March
quotequote all
Hi
I'm getting front track rod ends replaced on my 2 series BMW and been told it'll need a wheel alightment carried out.

Do I need a full 4 wheel alignment? Laser alignment etc...?

SAS Tom

3,403 posts

174 months

Monday 18th March
quotequote all
Depends if the rear is out of spec already.

ingenieur

4,097 posts

181 months

Monday 18th March
quotequote all
Often a good idea in any case depending on the age and mileage.

Anywhere past around 40k or 5 years there's been time / mileage for it to benefit from being checked / reset.

If you don't want to do it you can insist that the garage changing your track rods measures the length of the currently fitted items and sets the new ones to the same.

It won't be as good as having had it checked / adjusted but if you wish to avoid the expense it can be done without.

ScoobyChris

1,684 posts

202 months

Monday 18th March
quotequote all
Lannister902 said:
I'm getting front track rod ends replaced on my 2 series BMW and been told it'll need a wheel alightment carried out.
Lucky - when I had my Skoda done, they told me their mechanic would "do it by eye" and it turns out his eye wasn't quite as accurate as the Hunter rig biggrin

FWIW, if the wheel alignment's being done, you might as well have the rear checked at the same time. Lots of places only charge if adjustments are required.

Chris

ingenieur

4,097 posts

181 months

Monday 18th March
quotequote all
Adjustments are always required!

ingenieur

4,097 posts

181 months

Monday 18th March
quotequote all
You can do wheel alignment at home by stringing fishing line from the surface of the rear tyre to the surface of the front tyre and measuring the gaps between the fishing line and the wheel rim. Bit of a faff but if you want to save money it can be done!

Triumph Man

8,691 posts

168 months

Monday 18th March
quotequote all
Yeah definitely do it all, certainly for the relatively small difference in the cost of 2/4 wheel alignment.

"By eye" makes me shudder - When I changed the suspension arms on my Discovery 4 I paint marked the adjustment bolts and got them back pretty close. Even then it threw a wobbly by illuminating the traction control light, disabling all special programmes, and dropping the suspension to its lowest height. Was an interesting (and bouncy!) drive to the alignment place! hehe

TwinKam

2,985 posts

95 months

Monday 18th March
quotequote all
ingenieur said:
Often a good idea in any case depending on the age and mileage.

Anywhere past around 40k or 5 years there's been time / mileage for it to benefit from being checked / reset.

If you don't want to do it you can insist that the garage changing your track rods measures the length of the currently fitted items and sets the new ones to the same.

It won't be as good as having had it checked / adjusted but if you wish to avoid the expense it can be done without.
biglaugh Good luck with that. Have you even tried to accurately measure the effective length of a track-rod end? And was the alignment correct before?
Just man-up and get the alignment done properly and professionally, potentially saving the cost of a pair of tyres.

ingenieur

4,097 posts

181 months

Monday 18th March
quotequote all
TwinKam said:
ingenieur said:
Often a good idea in any case depending on the age and mileage.

Anywhere past around 40k or 5 years there's been time / mileage for it to benefit from being checked / reset.

If you don't want to do it you can insist that the garage changing your track rods measures the length of the currently fitted items and sets the new ones to the same.

It won't be as good as having had it checked / adjusted but if you wish to avoid the expense it can be done without.
biglaugh Good luck with that. Have you even tried to accurately measure the effective length of a track-rod end? And was the alignment correct before?
Just man-up and get the alignment done properly and professionally, potentially saving the cost of a pair of tyres.
Lots of times. And like I said in my comment you quoted... it isn't as good as having it properly aligned. It seems to me this question is completely about the risks of not having the work done simply because there is no appetite for paying out if expense can be avoided. So my answer is yeah yer can... but you shouldn't.

Mr Tidy

22,344 posts

127 months

Monday 18th March
quotequote all
Lannister902 said:
Hi
I'm getting front track rod ends replaced on my 2 series BMW and been told it'll need a wheel alightment carried out.

Do I need a full 4 wheel alignment? Laser alignment etc...?
I would get a 4 wheel alignment done somewhere that knows how to do it properly.

After removing spacers, raising the ride height (on coil-overs) and going back to OE 18" wheels from after-market 19s on my BMW Z4 I had a 4 wheel alignment done by an ex-Sytner Indy who also did circuit racing.

It was totally transformed. biglaugh

pfeds

5 posts

163 months

Monday 25th March
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Yeah well worth doing. Even if it's slightly out it will cost you more in tyre wear.

roscopervis

340 posts

147 months

Thursday 28th March
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Of course, get it 4 wheel aligned. A proper 4 wheel alignment starts at the rear and requires the rear of the car to be correct before you can correct the front; it's your reference. In fact, that's a good way to see if your alignment person knows what they're doing. They may have the full Hunter kit, but if they start to adjust on the front, it's not a good adjustment.

SAS Tom

3,403 posts

174 months

Thursday 28th March
quotequote all
roscopervis said:
Of course, get it 4 wheel aligned. A proper 4 wheel alignment starts at the rear and requires the rear of the car to be correct before you can correct the front; it's your reference. In fact, that's a good way to see if your alignment person knows what they're doing. They may have the full Hunter kit, but if they start to adjust on the front, it's not a good adjustment.
Like most things it depends on the car. If it’s not adjustable on the rear then they will start on the front.