Full lock vibrations

[jamespilgrim]

I noticed this morning when carrying out a 3 point turn,'vibrations' through the steering wheel, almost as if I was driving over small bumps (I wasn't though!).

Only happens on full lock and all seems OK other than that.

Any ideas what this is? Should I be worried?

Car is 2001 996 C4.

[Vesuvius 996]

jamespilgrim said:

I noticed this morning when carrying out a 3 point turn,'vibrations' through the steering wheel, almost as if I was driving over small bumps (I wasn't though!).

Only happens on full lock and all seems OK other than that.

Any ideas what this is? Should I be worried?

Car is 2001 996 C4.

Check the pentosin level - it might be low.

[Erik997]

Do you have fairly new tyres?

I had the same on my 997: When on full lock on a fairly smooth surface the actual tread in the front tyres slightly slips (if they're new) as you start moving forwards which causes a weird vibration until the wheels straighten.

I probably haven't explained that too well but I'd assume its the same thing - went away once tyres were a little bit worn.