I have a slow puncture on one rear tyre. Should I replace both rear tyres (i.e. one axle) or can I just replace the punctured one? Both tyres have good tread depth.

New tyres start with around 8mm on them.

 

What is the tread depth now?

 

If by "good" you mean between 6mm and 8mm I'd be replacing only the one tyre.

 

Is it 2WD or a 4x4?

 

Edited 26 September, 20196 yr by silver1011

1 hour ago, TonyBe said:

I have a slow puncture on one rear tyre. Should I replace both rear tyres (i.e. one axle) or can I just replace the punctured one? Both tyres have good tread depth.

 

the first thing would be to see if you can get the puncture repaired.

3 hours ago, tunedude said:

 

the first thing would be to see if you can get the puncture repaired.

 

Same here too, if it's not to close to the side wall and repairable then it'd be worth a tenner to get it fixed, unless you are planning on taking it on a track day. Then I'd think about a change, possibly a new pair.

In my experience, it is best to avoid the big tyre fitting companies.  They will likely tell you that the puncture cannot be repaired and you need to buy a new tyre.  Go to a good independent tyre place.  If they say the tyre needs to be replaced, I would trust their judgement far more than the big companies.

1 minute ago, nbramwel said:

In my experience, it is best to avoid the big tyre fitting companies.  They will likely tell you that the puncture cannot be repaired and you need to buy a new tyre.  Go to a good independent tyre place.  If they say the tyre needs to be replaced, I would trust their judgement far more than the big companies.

 

hear hear.

 

Kwik **** and halfrauds are renowned for it. We've a tyre place not far from us who undercuts them all, gives a quicker service and you can just with the info they tell you.

 

Our fleet company stopped using Kwik **** because they charged for stuff which wasn't needed. Best one I heard was my mate was getting told his van needed it's tracking checking because driving on the deflating tyre had caused suspension misalignment. You have to wonder how many people who don't know a thing about cars have been conned by those type of tricks.

Well there are rules to follow about fixing tires (I work at the wheel department at an official dealer), så either they can be fixed or not, there are no in-between.

 

If the hole is smaller than 6mm and in the middle of the surface than it easily can be fixed.

 

See if you can get it repaired first, might not be the tread, could be a faulty valve , if you are very unlucky then a micro-crack in the alloy.

 

If not repairable will need a replacement, if you need one or two tyres will depend on tread depth. Over about 5.5mm then get one tyre, if any other tyre is below about 4mm then probably 2 tyres (put both new on same axle)

 

You might need to swap some tyres around if tyres are directional and getting 2 tyres (which will determine which way the new ones go on).

 

If it is a 4x4 not a great idea to have 2 new tyres and 2 worn tyres as wheels rotate at different speeds which probably will strain the Haldex and eventually lead to premature failure.  Opinions differ but max 3mm tread difference seems common recommendation.

On 26/09/2019 at 19:17, SurreyJohn said:

See if you can get it repaired first, might not be the tread, could be a faulty valve , if you are very unlucky then a micro-crack in the alloy.

 

Might also be slight buckling/deformation of the bead rim.

Tyre place put some sealant on my previous cars alloy around where the bead sits, and fixed a very annoying slow leak. Don't even think they charged me for the sealant (just for the unmounting, cleaning, new valve, remounting and balancing) £10.

Edited 27 September, 20196 yr by micro