Tire Help

N

Nocturnal

Member
Hello,

I have a 2004 Z4 3.0i. My car currently has 225/45/ZR17 tires on. I recently ran a flat tire (images attached). I don’t think it’s able to be repaired. I was wondering if I should just buy one tire and replace it? I have about 5-5.5mm of tread left on my other tires. Date coded two 2022 and one 2021 (the other has the nail in it). The vehicle currently has Michelin Pilot Sport 4s.

I eventually would like to track it, but not a priority right now. I do daily drive it though. I live in California, so a very warm climate.

Any help or recommendations would be greatly appreciated.

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I tend to always replace tires in pairs so that the grip is the same on both sides. Also, conventional wisdom suggests generally new tyres should always go on the rear rather than the front. So on a car with 4 tyres of the same size, if the fronts needed replacing you would move the rears to the front and then put new tyres on the rear. Of course this is not possible on cars like some of the BMWs in which the front and rears are sometimes different sizes.
 
pvr said:
17" wheels are a square setup, so you can move front to back
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Gebbly said:
I tend to always replace tires in pairs so that the grip is the same on both sides. Also, conventional wisdom suggests generally new tyres should always go on the rear rather than the front. So on a car with 4 tyres of the same size, if the fronts needed replacing you would move the rears to the front and then put new tyres on the rear. Of course this is not possible on cars like some of the BMWs in which the front and rears are sometimes different sizes.
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Thanks, sounds like the recommendation is to replace my rear two tires with new tires. I'll then work on rotating them with the fronts? Do I have enough tread on my front where that'd make sense?

Also, I imagine I should replace with the same tire (Pilot 4s)? And, is it bad having a square setup?
 
I had a 17" Pirelli run-flat on my 1 Series repaired and ran it for another 11,000 miles with no problem, and I may have strayed over our Motorway speed limit of 70mph from time to time!

What I have read seems to suggest a square set-up is less prone to understeer than staggered (wider rears than fronts), but I have never run both set-ups on the same car. But I have run a few BMWs with a square set-up and been happy enough with them.
 
Mr Tidy said:
I had a 17" Pirelli run-flat on my 1 Series repaired and ran it for another 11,000 miles with no problem, and I may have strayed over our Motorway speed limit of 70mph from time to time!

What I have read seems to suggest a square set-up is less prone to understeer than staggered (wider rears than fronts), but I have never run both set-ups on the same car. But I have run a few BMWs with a square set-up and been happy enough with them.
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Oh wow, like on the run flats?
 
Nocturnal said:
I imagine I should replace with the same tire (Pilot 4s)? And, is it bad having a square setup?
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I dont think there is anything inherently "bad" about either a square setup or non-square setup they are just different choices. I have had cars that came from the factory with square setup as standard and others that have come from the factory with non-square as standard. If you are on a square setup at the moment there is no cause for concern. It just means when your car is driven right on its limits it will have slightly different (not bad) handling characteristics but most of us will never get near those limits unless we are on a track. One everyday advantage of a square setup (and one i miss) is that ability to rotate the rears forward.

As for which tires to choose there are many discussions of tire choice on this forum. Personally I try and buy in pairs so when I replace both fronts or both rears they are the same make/model. I think it is slightly less important that the fronts and rears match but I try and get similar performing tires front and rear. For example 2 pairs of high quality tires from different manufacturers would probably be ok. But putting a pair of high quality "grippy" tires on one end and then some real cheapies with very little grip on the other end might give an unpleasant handling experience.

The Pilot Sport 4 are one of the model of tyres that people on here seem to like.
 
Nocturnal said:
There is a shop nearby who said they will plug it for $50 from the inside. I won't be tracking the car, but the roads here in California are quite fast. Would a plug be a bad idea?
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If they remove the tire from the rim and repair it from the inside you should be fine.
 
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