SL55 rear wheel hopping

[benjy88]

Hi everyone, my sl rear wheels feel like they are hopping while accelerating from standstill if the car starts to wheel spin, have tried searching for possible causes but cannot find anything.
Only thing I can think of is the rear tyres need replacing because they have gone hard.
Wondered if any of you lot had the same sorta thing?

Thanks

 

[zoros]

Only thing I can suggest is:
as the wheels start spinning, they move horizontally a fraction due to the applied torque. Traction control kicks in and undoes this 'excessive' torque stopping the horizontal movement instantaneously thus giving the impression the car has 'hopped' somewhat.

 

[Giantvanman]

^^ That. Are you sure it isn't the traction control?

Have you or someone else actually observed the rear wheels hopping or is a sensation you feel from inside the cab and have drawn a conclusion? How old are the springs and dampers on the rear out of interest?

 

[zoros]

Benjy: get someone to film your car from behind when you next try it?

 

[Beetnik]

Turn off traction control and try again.

How old are the tyres?

 

[bolide]

It used to be called axle tramp and it was common on cars with solid rear axles. You may have a bad shock absorber, soft bush or worn diff mounts

Nick Froome

 

[sl55plymouth]

Get a Limited slip diff fitted, best thing i ever did, mind you i had something similar a few weeks ago, it was cold and damp, had a bad vibration/juddering, looked down and saw the traction control light flashing and that was at ***mph

 

[benjy88]

The tyres are 4 years old on the rear now so won't be helping I think, but as today was a fairly glorious day it never did it once so I think it's down to the shear torque and low amounts of traction and traction control trying to hold it back. Thanks guys

 

[ItalianTuneUp]

Maybe some new tyres would help?

 

[m2287]

Does the car feel like it "skips" to the left or right when you go over bumps?

 

[benjy88]

Nope the car runs straight and true over bumps. Hopefully a new set of rears will do the trick.