Puncture repair or replace tyres, how many

gforrow

Registered User
I've a 2019 S3, and noticed today that the front left tyre was flat, like completely flat. Got it inflated again, so will see if it goes down. Rotated the wheel and can't see anything obvious.

The tyres are probably around 2mm left, so getting close to the end.

If I have to replace, can I just replace only the fronts, as I would have done on a FWD car, or do I need to do the four in one go? Got Pirelli Pzero at the moment, and about 13k on the clock, so not done bad. Rears are on about 3mm at the moment, so have some life left, but don't wish to damage anything by having new ones, 7mm, on the front and worn, 3mm on the back.

As it's not true 4wd, is this a problem?

Thoughts?
 

eribaMotters

Registered User
With that little tread left I'd replace the lot. Whilst the legal limit is 1.6mm across 75% of the tread I find it hard to understand getting so close to that. You have a new, expensive and high performance vehicle, why deprive it of the levels of grip it deserves and needs?

Colin
 

pburv

Registered User
As stated in the above post you are probably better off in replacing all four. As for needing to replace 1 pair only on a Haldex set up then you won't be doing any harm to the system. If it was me though and there was noticeable difference in tread depth then I would replace all four.
 

45bvtc

The Older I Get The Better I Was
Supporter
Gold Supporter
The tyres are probably around 2mm left, so getting close to the end.
Thoughts?

Why would you risk your life and car and/or anyone you care for let alone others driving around this weather with only "around 2mm left."

Please explain, I'd love to know...

You may think you do the drivin,' steerin,' and a brakin', but you only do it care of them 4-rubber-ring bits
 
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gforrow

Registered User
I’ll look to getting the 4 replaced.

As for risking my life, are you for real? Even in the snow, 2mm is more than enough, no issues with grip, braking etc. Granted I don’t hoon around on two wheels and a door handle, but I don’t feel I am risking anything. So when do you replace, 5mm left, 4mm, what basis do you have for replacing them well before they can’t cope any longer?

For £90 a corner, I’ll go for it

thanks for your input
 

eribaMotters

Registered User
I don't like going below 3mm. I've just replaced the fronts on wife's 6 year old VW Up at 4mm as I could see very small cracks in the tread grooves.

Colin
 

traindweller

Registered User
Why would you risk your life and car and/or anyone you care for let alone others driving around this weather with only "around 2mm left."

Please explain, I'd love to know...

You may think you do the drivin,' steerin,' and a brakin', but you only do it care of them 4-rubber-ring bits

We all have different tyre change limits and lets be fair the tyres are getting worse from the moment you put them on the car. Why have 1.6mm as pass for mot etc if they need to be changed 3, 4 or 5mm . Each to their own perhaps??
 

S32B

Registered User
I've a 2019 S3, and noticed today that the front left tyre was flat, like completely flat. Got it inflated again, so will see if it goes down. Rotated the wheel and can't see anything obvious.

The tyres are probably around 2mm left, so getting close to the end.

If I have to replace, can I just replace only the fronts, as I would have done on a FWD car, or do I need to do the four in one go? Got Pirelli Pzero at the moment, and about 13k on the clock, so not done bad. Rears are on about 3mm at the moment, so have some life left, but don't wish to damage anything by having new ones, 7mm, on the front and worn, 3mm on the back.

As it's not true 4wd, is this a problem?

Thoughts?
If I were down to 3mm on the back on 2mm on the front I wouldn't even ask...I'd be changing the lot. Especially on a high performance car, it's not just about stopping, it's about them blowing out! Not worth the risk for the sake of an extra month or two use.

If you do change just 2, the best tyres should ALWAYS go on the back.
 

gforrow

Registered User
Some of the answers on here make me laugh. Blowouts, lol. Never had a tyre with 3mm blowout, in 30+ years. Also never had a tyre on the legal limit blowout either, too many factors of safety built in.

I will be replacing all four, due to 4wd.

as for always on the back, two schools of thought on that. For FWD cars they should go on the front, due to under steer. I doubt many “regular” drivers could ever get a FWD car to oversteer, only if you provide it massively. For RWD, I agree.

I’m sticking with the Pzeros I currently have, they seem to offer a good mix of wet/dry performance and relatively low road noise.
 

S32B

Registered User
Some of the answers on here make me laugh. Blowouts, lol. Never had a tyre with 3mm blowout, in 30+ years. Also never had a tyre on the legal limit blowout either, too many factors of safety built in.
Lucky for you, I have and it's not nice! Why bother coming on here and asking for advice if all you are going to do is ridicule peoples replies and opinions? You obviously know better than the rest of us, so why ask in the first place.

Like saying I've never had an accident in 30 years, doesn't mean you wont have one tomorrow!
 

pburv

Registered User
Some of the answers on here make me laugh. Blowouts, lol. Never had a tyre with 3mm blowout, in 30+ years. Also never had a tyre on the legal limit blowout either, too many factors of safety built in.

I will be replacing all four, due to 4wd.

as for always on the back, two schools of thought on that. For FWD cars they should go on the front, due to under steer. I doubt many “regular” drivers could ever get a FWD car to oversteer, only if you provide it massively. For RWD, I agree.

I’m sticking with the Pzeros I currently have, they seem to offer a good mix of wet/dry performance and relatively low road noise.

Here's a copy of a statement I read on Uniroyal's website.

''Regardless of the drive type, we recommend not fitting the better tyres at the front, but always fitting them at the back. The reason is simple: The rear axle ensures the tracking stability of a vehicle. Remember to rotate the tyres when changing them. The better and new tyres go to the back, not to the front.''

I think it's fair to say that some sound advice was given to you on your thread. Clearly it's up to you if you want to act on them.
Just saying.:icon thumright:
 

pburv

Registered User
Some of the answers on here make me laugh. Blowouts, lol. Never had a tyre with 3mm blowout, in 30+ years. Also never had a tyre on the legal limit blowout either, too many factors of safety built in.

I will be replacing all four, due to 4wd.

as for always on the back, two schools of thought on that. For FWD cars they should go on the front, due to under steer. I doubt many “regular” drivers could ever get a FWD car to oversteer, only if you provide it massively. For RWD, I agree.

I’m sticking with the Pzeros I currently have, they seem to offer a good mix of wet/dry performance and relatively low road noise.
As for P Zero's Yes they are good tyres I've had them on my S3 .:icon thumright:
 

Leevr

Registered User
All I have to say is that if you have 30+ years of driving you should be able to answer your own question. Not like its your first car after passing your test. If you laugh at advice. Take your own route for a solution. No thoughts on this or advice from this corner im afraid.
 

gforrow

Registered User
I came on here asking whether I had to replace all four or not. It’s my first 4 wheel drive car. I did not ask for everyone’s opinions on when to change, on the limit, 50% worn etc. Read my original post.

Thanks to those that actually answered the question. To everyone else, thanks for your opinions, but if you insist on offering them, expect someone else to have a different one.

Now to book 4 replacement tyres
 

S32B

Registered User
The tyres are probably around 2mm left, so getting close to the end.
If I have to replace, can I just replace only the fronts, as I would have done on a FWD car, or do I need to do the four in one go?
Rears are on about 3mm at the moment, so have some life left, but don't wish to damage anything by having new ones, 7mm, on the front and worn, 3mm on the back.
Thoughts?

I did not ask for everyone’s opinions on when to change, on the limit, 50% worn etc. Read my original post.
To everyone else, thanks for your opinions, but if you insist on offering them, expect someone else to have a different one.

Well looking back at your original post, your question was broken down by people that read it! And at the end you asked for thoughts which it what you got.

Yes you are correct about people having different opinions, but if you come on a public forum and ask for advice then you must accept that people will have a different opinion than yours, it works both ways! If you don't agree with them just ignore them, no need to ridicule them.

Good luck with the 4 new tyres :)
 
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