Prac

Bit of a stupid question probably, but I've noticed my GSF's rear swerves side to side sometimes after
1. Doing a quick lane change at semi high speed (90km/hr +)
2. Turning slightly faster than normal on roundabouts
3. Accelerating in the rain

I'm running Pirelli PZeros. I'm not an expert in checking tyre baldness but they still seem quite good. I don't think the front is a problem as I recently changed one of the tyres due to my SO damaging it.

Is it time for new tyres?

1A1

Check your rear wheel bearings and also have your alignment checked.

Steve

ArticKnght

Looking at the wear bars in the tire, its tough to say from those angles. Its possible they may need to be changed.

NotFSport

To me that second picture shows a good bit of distance before you get to the wear indicator. How many miles are on the car? Is it possible this is due to a suspension issue?

jgscott

iTrader: (1)

That does not look like much Tread to dissipate a lot of water with the tread depth at this time. Try reducing the air pressure 3-4 lbs and see how it tracks. With RWD in rain your tires and amount of tread to track in water is everything. I say Tires.

Prac

Thanks guys

I've found the right term for it. The car is basically fishtailing. Will go to the mechanic tomorrow and get them to have a look at it.

lobuxracer

iTrader: (2)

Too much rear tire pressure for the load you have. What TVD setting are you using? I default to slalom for city driving and track for highway. Pretty sure it's mostly like an open diff if you don't select a mode.

I experienced exactly what you describe on the freeway at speed, but my rear tires were within 1mm of the wear bars. Had to slow to 80 kph to keep the rear end at the back in a pretty intense downpour. Tires are Continental DWS06, and they are normally just fine for daily driving in any weather above freezing.

designo

iTrader: (6)

Check your tire pressures.
Also, your tires may be old production and are not performing with temperature.

Prac

I don't drive in track or slalom. I guess my rears have too much tire pressure probably. I've just followed whatever the manual has stated in terms of tire pressure. I'll probably be looking to replace all 4 tyres with good brand new ones sometime soon though.

ping83

iTrader: (8)

You may also have a broken belt in one of the tires causing your issues.