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Taigo

2 Tyres or 4?

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Hi All

New tyres are upon me. The Fronts only need doing but I thought I recalled hearing somewhere that with an AWD car you need to change all 4 regardless. Any ideas?

I'm in a manual 2006/06 Mk5 R32

And the Goodyears look like a forum fave :)

Thanks,

Taigo

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The "you must change all four tyres at once" thing is a complete myth usually perpetuated by the thieving c*nts at Audi dealerships.

I'm on my 7th Subaru, fronts have always gone first and I've always changed fronts then rears anything up to 10k miles apart.

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It isn't a myth on some cars, I think cars with proper 4wd like Subarus don't care about the tyres too much, but some systems can suffer very badly with uneven tyres.

I had a Cavalier GSi Turbo 4X4 many years ago, and if you didn't change all 4 tyres at the same time, it used to spit the rear diff out, hence now, probably 90% of all Cavalier 4X4's you see on the road (admittedly not many these days) have the rear drive disconnected, as the diff costs more than the cars are worth.

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The R32 has a Haldex based AWD system so there is no problem changing tyres in pairs.

I run F1 Asymmetrics on mine and find them really good and they seem to last well also, but be warned they take around 1k miles to bed in. Until they bed in it's like driving on ice at times:ffs:

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It isn't a myth on some cars, I think cars with proper 4wd like Subarus don't care about the tyres too much, but some systems can suffer very badly with uneven tyres.

I had a Cavalier GSi Turbo 4X4 many years ago, and if you didn't change all 4 tyres at the same time, it used to spit the rear diff out, hence now, probably 90% of all Cavalier 4X4's you see on the road (admittedly not many these days) have the rear drive disconnected, as the diff costs more than the cars are worth.

Indeed i was going to quote the Cav/Calibra Turbo boxes. They were made of chocolate!

Haldex equipt cars are fine.

PS2's are my choice. +++

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Thanks all - I think I did originally hear about changing all four from the Audi Dealership when I had a 225 TT before the R32.

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Very useful info from Tipex. Yes, my assumption is that new, up to date 4wd systems don't need all 4 changed at once. I would have thought that would also be the case for any recent Audi, although possibly not the early quattros.

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The Golf Mk5 R32 system is front wheel drive until the sensors kick in the rear wheels ( ie. 4 Motion system)

On permanent 4WD cars you do have to change all 4 tyres, but not on the Golf.

I have always used Goodyear F1

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Thanks all - I think I did originally hear about changing all four from the Audi Dealership when I had a 225 TT before the R32.

Nice to see that the stealer treats a Haldex equipped TT like a proper Torsen-diff equipped (real) Quattro.

Just replace the tyres in pairs - eg. fronts or backs. No need to do all 4. Just try and keep the tyres the same brand, size and ratings (though the haldex is somewhat tolerant front to back of differences).

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Nice to see that the stealer treats a Haldex equipped TT like a proper Torsen-diff equipped (real) Quattro.

Just replace the tyres in pairs - eg. fronts or backs. No need to do all 4. Just try and keep the tyres the same brand, size and ratings (though the haldex is somewhat tolerant front to back of differences).

I used to rotate my tyres so only had to go to the tyre shop once although wear did seem quite even between front & rear.... Haldex can cope with different tyres on the 2 axles & I think different tyres on each axle but I would definitely replace in pairs.

"The controllability of the Haldex Gen IV also makes it possible to use differently worn tyres, to tow the vehicle with one axle raised, and to maintain function when using Run-flat-tyres or Mini-Spare." Coupling Control Concept - Haldex

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a MkIV has a Gen 1 and a MkV has a Gen 2 Haldex - so what goes for a Gen 4 may not apply...

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a MkIV has a Gen 1 and a MkV has a Gen 2 Haldex - so what goes for a Gen 4 may not apply...

Good point although I am sure I found similar for my MkIV when I originally looked at Haldex's website which also made it clear it could be towed (at low speed).

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