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Pulling to one side.

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michaelb   
Mon May 17 2010, 10:12am
Joined: Nov 17 2009
Member No: #14
Location: London
As you might know Citroën put two new Michelins on for me last week. I drove home a happy man - albeit lighter of wallet.

Yesterday I took the car out for the first time since then and got one kilometre up the road when the puncture warning came on. As I was about to go on a motorway journey I didn't fancy the speed-restricted space-saver so decided to turn around a drop into National Tyres nearby.

The lad took the rapidly deflating wheel off and started tut-tutting. Sure enough Citroën had left the old weights in place and balanced the wheel with new ones as well. Then he pointed out that the rim hadn't been cleaned and could be the cause of the leak. When we took the dust cap off we found the valve insert was loose. Simply tightening it up and inflating the wheel did the trick. Phew - at least there wasn't an expensive puncture in a new tyre which was my first fear.

Now my question. Once on my merry way I noticed the car was pulling to the left. I thought it might be a discrepancy between Citroën's and National Tyre's pressure gauges. I took out my gauge and ensured both tyres on the axle in question had exactly the same pressure but the pulling to one side persists. It's not a violent pull but it's nevertheless quite evident.

I was there the whole time with the National Tyres chap and he did nothing but take the wheel off and put it back on. He used the jacking point under the sill, he didn't touch any suspension members.

Has anyone heard of tracking going out of line like this before?

Do you think I should take it back to them and have them check the tracking, or is another visit to Citroën on the cards?
Trainman   
Mon May 17 2010, 12:32pm

Joined: Apr 12 2010
Member No: #86
Location: Penwortham
I'm wondering if the weights have come off ? or if the other side has more weight on that it should, I think I'd be getting both rebalanced, just to be on the safe side.
Dave Mc   
Mon May 17 2010, 01:23pm
Joined: Mar 02 2010
Member No: #64
Location: Weston-super-Mare
HI Michael, I would take it back to Citroen as it must be something they have done when changing the tyres (BADLY!). If it was a weight problem and the wheels were unbalanced all it would do is to give you vibration and not make the car pull to one side.
tonyrome   
Tue May 18 2010, 12:12pm
Joined: Nov 22 2009
Member No: #15
michaelb wrote ...
Citroën had left the old weights in place and balanced the wheel with new ones as well. Then he pointed out that the rim hadn't been cleaned and could be the cause of the leak. When we took the dust cap off we found the valve insert was loose.

Top quality service work by the dealer, Michael . This is the sort of service quality which is responsible for Citroen's UK dealers having such a poor reputation!
michaelb   
Tue May 18 2010, 12:56pm
Joined: Nov 17 2009
Member No: #14
Location: London
I know, I should go back to them to have it sorted out but to be honest with the journey there and my current level of faith in them I'm inclined to get someone local to look at it.

michaelb   
Mon May 24 2010, 02:59pm
Joined: Nov 17 2009
Member No: #14
Location: London
The mystery continues.

I took it back to Citroën. They tested the geometry and handed it back to me smiling that a small adjustment needed to have been made and it's now perfect.

I drove off down the road and turned around at the first roundabout bringing the car straight back to them because it was still pulling to the left. Citroën agreed to check it again. After another wait they came back to me and told me the geometry is perfect and asked if I wanted to take it around the block with one of their technicians. Off we set and a hundred yards down the road I gently let go of the wheel and sure enough we headed for the kerb immediately. Even on roads with no camber the wheel has to be held at about 5° to the right to drive straight. The technician saw and acknowledged the problem. He confirmed again that the geometry is perfect maybe it could be a manufacturing tolerance issue between the tyres; different batches, different compounds, different rolling resistance.

Pulling back into the dealership I suggested swapping them side to side to eliminate that. They did that and we headed out again. It is improved but still there and still to the left. So it can't be a question of one tyre having a greater diameter than the other, or such like.

At this point Citroën were at a loss as to what to suggest. They offered replacing the tyres but as (a) I don't believe they are at fault because otherwise it should now be pulling to the right, (b) I've only done a hundred miles on these tyres so I wouldn't even be gaining on that front (c) there is more chance the fragile valves could be damaged and more importantly (d) it would mean more trips to the dealership for me, I declined the offer and decided to try living with it.
michaelb   
Wed Aug 04 2010, 05:33pm
Joined: Nov 17 2009
Member No: #14
Location: London
Update:

I had decided to wait until I got onto Continental roads, with the camber on the other side, to see if this problem persists and needs to be looked into further.

Sure enough driving in France it is still pulling to the left, even uphill against the road camber.

I decided I couldn't live with it any more and asked a French dealer to check it out. Well wouldn't you know, despite Slough telling me several times "it's all within parameters" the French dealer has given me a printout showing the right front wheel had 1° 15' too much negative camber. They adjusted it as much as they could but it is still out 1° 12' beyond normal parameters.

Looking at the car's history they see the pivot and bearing on that side were changed in March (I'm impressed that Citroën's computer system works better than the NHS). They suggest to me that the pivot hasn't been properly mounted.

Not having time now to get them to fix it before my return to the UK I fear another visit to Slough coming on
C6Dave   
Wed Aug 04 2010, 06:11pm

Joined: Oct 01 2009
Member No: #1
Location: Northumberland
Now that is interesting, maybe the French dealer employed real mechanics rather than the 'spotty technicians' who still sport 'bum fluff' we habitually encounter in the UK
Website
Mike H   
Fri Aug 06 2010, 10:05am
Joined: Feb 16 2010
Member No: #53
Location: Melbourne
Does that mean the new tyres have revealed/exagerated a preexisting problem not apparent with the old tyres? Was there any uneven wear on the old tyres that might support this?

or, Is it possible for a hub or break binding problem to cause this?

e.g. is the hub /disc hot(er) on left side

pure speculation based on nothing.

mike
Ranger12   
Thu Oct 15 2020, 01:27pm
Joined: Sep 24 2020
Member No: #4492
Location: Somewhere in the darkest recesses of England
Hi there,

I'm new to this site and a new owner of a 2007 C6 2.7 Biturbo HDI Exclusive.

Did you ever get this issue resolved? I ask as my C6 is also pulling to the left, and despite having an interim service, and the front struts and lower suspension arms changed for new ones (£1700), then 4 wheel tracking done (tracking was out), my car still pulls just as much to the left, like nothing was done.

It doesn't dive for the left, however I have to keep a constant counter-pressure on the steering wheel to go straight. I have also tried it on the right hand side of a cambered road, and whilst this reduces the pull to the left, it still pulls to the left against the right camber.

Tyre pressures are equal, all tyres have around 5-6mm of tread, and at low speeds I can take my hands off the wheel, and watch it turn itself left by about 5 degrees. Braking slightly increases the pull to left, but only slightly.

If anyone knows the cause of this issue, please let me know what was done to remedy the situation.

Kind Regards
Pete
 

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