Thread: Car drifts to the left after service

First, I'd talk to the people who serviced it, and ask them to rectify the problem they created.

Definitely NOT correct and a tyre rotation is extremely unlikely to be the cause if it was fine before.

This will quickly cause excess tyre wear and also throw the DSC out, as well as decrease fuel economy. The dealer should correct immediately. However before you take it back check tyre pressures.

Checked the pressures this morning and 39 on both left tyres, 41 on both right tyres. Set them all the same but still drifting left. I'll give them a call this morning.

What is done in a major service other than rotating tyres that could affect steering like this?

2psi wouldn't make a difference, I was thinking maybe they'd put the spare on and it had gone down to 20 or something and nobody had noticed.

If it's pulling to one side causes I can think of are alignment, or unwanted braking on the left side caused maybe by a wheel bearing, caliper or soemething. Another cause is severe overloading on one side but that wouldn't be it. Either way the dealer needs to resolve the matter. I expect the dealer will want to know:

- at what speeds
- under braking, acceleration, cruise or all of the above
- was the terrain flat
- tyre pressures

One way to check is to jack the front of the car up and manually rotate each wheel, see if there is one that's more difficult to turn. If that's the case it's not an alignment problem. If they all spin easily perhaps not alignment.

Originally Posted by rmp

Definitely NOT correct and a tyre rotation is extremely unlikely to be the cause if it was fine before.

.

I disagree.

It is almost certain that the pull to left has been caused by the tyre rotation.

In that case, about the only thing that can be done to rectify it is either putting the tyres back where they were or getting an alignment done to try to couteract the pull. If the tyres are worn badly enough (not always visible wear either) an alignment might not be enough.

Originally Posted by Ashes

Checked the pressures this morning and 39 on both left tyres, 41 on both right tyres.

That seems high...?

The plaque on my Disco says 32 for the front and 36 for the back.

(Or are you talking imperial measures?)

Originally Posted by MobyDisco

That seems high...?

The plaque on my Disco says 32 for the front and 36 for the back.

(Or are you talking imperial measures?)

32 and 36 are imperial measures... PSI is pounds per square inch. Pounds are imperial, Inches are imperial...

I'd expect that one of the wheels was moved from the rear to the front and that it is out of balance but was not causing a problem because there's no steering on the rear. I'd also expect it to be the one that's on the right.