Handling problems after changing rear tyres

[002FTW]

Hi guys,

Need some assistance please....

After changing the rear tryes on a E39 M5, the car now handles badly...oversteers and feel body roll.

The tyres are the same as the old, Dunlop Sp Sport 275/35/18 run flats. The car has been to BMW, they have done the wheel alignment and checked the suspension, everything is ok.

A tech from BM however said they having same problems with other clients changing just the rear tyres when running offset. A 335 was one, the client changed the front two and the car rides fine. Is this true? Is there anything else that could cos the problem?

 

[freerider]

How many kms are on the new tyres? Maybe pull one nice long eleven, and get the rubber more tacky.

 

[002FTW]

Just under 1000kms....care actually feels dangerous to drive around bends...

Elevan sounds good...just waiting for them to wear in a bit...done it before with new tyres, chucks came off the tyre.:bawling:

 

[wynandd]

Maybe the E39 is not happy running on run flats? Just my 2c.... :dunno:

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BTW welcome to the forum!

 

[Hellas]

Tyre batches are not always the same. Had som troubles with Pirelli P6000's on the rear, but on the front they worked fine.

Oh, and Dunlop: Dan Lop hy hier en Dan Lop hy daar. I'm not convinced about the roadholding of some Dunlops, but thats just an opoinion... :mmm:

 

[002FTW]

lol...hope not when going around a bend...

I had them on the car before, the car went around bends like on rails...no hassles with them at all. they excellent and well rated. These are made in germany.

I cant rotate as the rears are 275 and front are 245!

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Thanks, the car always had runflats from the time i got it.

 

[freerider]

If I were you, I would go directly to Dunlop and tell them that you loved the tyres previously, but these ones are kak. They will more than likely swap them out for you.

A mate of mine got a bubble on the sidewall of one of the 4 new dunlops that he bought in 18", and Dunlop here in Epping swapped all 4 out.

 

[wynandd]

...less of course tread used! :thumbsup:

 

[freerider]

He didnt pay in a cent. This was after about 5k kms.

 

[Hellas]

Neither Yokohama or Pirelli wanted to swap out for bubbles on the sidewall for tyres which had less that 1000km on them. Never bought those brands again anyhow...

 

[calypso]

I used to have Dunlop SP *000 Sport's on my car, they were horrible things. Was a day and night difference when I changed to teh Goodyear Eagle F1 Asymetrical's

 

[///MOS1TED]

heres another one i just fitted sport conti3 to my E36 Mpower and having the same issue....:cursin:

 

[freerider]

Strange, I love my CS3's

 

[///MOS1TED]

me to i changed from CS2 now to CS3 , im thinking the oke didnt set the car right , car feels like it wanna airborne

 

[Gandalf038]

I'm with FR on this one... been running Conti Sport 2's and 3's on the 328, and not 1 issue! :thinking: Brilliant handling in wet or dry... they do wear out quite quickly though.... :bawling:

 

[freerider]

There are so many places that totally stuff up when it comes to alignment

 

[///MOS1TED]

had it in at mintys , think i should take it to TWT

i have CS2 in the front and CS3 in the rear , front didnt need replacing so i didnt change it...

im just wondering if there is a slight thread pattern difference that could be causing that feeling im getting?

 

[Gandalf038]

me to i changed from CS2 now to CS3 , im thinking the oke didnt set the car right , car feels like it wanna airborne

correct me if I'm wrong, but don't Conti have a differently coded tyre for specific manufacturers? As far as I know, the BMW code is "M0". perhaps you have Conti's for the wrong manufacturer? :thinking:

 

[///MOS1TED]

oh flip , i never check that , will need to have a look into it , thanks

 

[freerider]

me to i changed from CS2 now to CS3 , im thinking the oke didnt set the car right , car feels like it wanna airborne

correct me if I'm wrong, but don't Conti have a differently coded tyre for specific manufacturers? As far as I know, the BMW code is "M0". perhaps you have Conti's for the wrong manufacturer? :thinking:

Thats interesting, I wonder how true that is?