[RigaTony1982]

Originally Posted by Westside Guy

Tony already commented on this and I seriously doubt it wasn’t observed when the car was turned in.

It's definitely one of the things on the inspection they look at, in addition to the tread depth.

[StanDiego]

Originally Posted by Westside Guy

I think he should contact the dealer and demand they put Star PSS on the rear to match the ones on the front.

Mentioned multiple times earlier, I believe the OP is crystal clear on that opinion.

[Westside Guy]

Originally Posted by StanDiego

Mentioned multiple times earlier, I believe the OP is crystal clear on that opinion.

Actually the OP has only asked for advice after discovering the two different tires on the front and rear. He has yet to acknowledge that he agreed with our recommendations and has contacted his dealer.

[Argo]

Originally Posted by RigaTony1982

It's definitely one of the things on the inspection they look at, in addition to the tread depth.

Originally Posted by Westside Guy

Tony already commented on this and I seriously doubt it wasn’t observed when the car was turned in.

Originally Posted by Living Dead

Maybe the prior lease knew the tires were worn and changed them and the dealer didn't notice upon return.

The thing is the fitted tires would actually comply with the guidelines for lease returns given they are "275/35ZR19 100Y XL" (Source):

"Same specifications as original equipment supplied on your vehicle (size, speed rating, and run flat, if applicable)"

We could argue all day about whether you should buy a car with mixed tires across different axles, but BMW will definitely take it on a lease return and sell it as used as-is.

[Westside Guy]

Originally Posted by Argo

We could argue all day about whether you should buy a car with mixed tires across different axles, but BMW will definitely take it on a lease return and sell it as used as-is.

Would you accept two different types of tires if you were the buyer???

[RigaTony1982]

Might not be a lease return (since it’s a 2022), so I doubt they look that closely on a regular old trade in.

[Entitled Prick]

I think the real questions are - is the car cpo’d and did the dealer install the rears or the previous owner.

[phdat28]

Thanks all for your opinion! I reached out to the dealer and will hear back tomorrow. Let's see what they will do now that we are 300 miles apart.

[Westside Guy]

Originally Posted by phdat28

Thanks all for your opinion! I reached out to the dealer and will hear back tomorrow. Let's see what they will do now that we are 300 miles apart.

Hopefully the dealer will offer to replace the AS4's with 2 new PSS Star tires. I hope that you stressed the point that the PSS are BMW Star tires, that they are the OEM's originally shipped from the factory and that someone substituted the AS4's which are less expensive. That it isn't correct to sell a roadster like this with two different types of tires.

I think that it is worth the 300 trip if the dealer agrees to the replacement.

[Entitled Prick]

Or save the mileage on the car and tell the dealer to ship the tires to you.

[StanDiego]

Originally Posted by Westside Guy

Hopefully the dealer will offer to replace the AS4's with 2 new PSS Star tires. I hope that you stressed the point that the PSS are BMW Star tires, that they are the OEM's originally shipped from the factory and that someone substituted the AS4's which are less expensive. That it isn't correct to sell a roadster like this with two different types of tires.

I think that it is worth the 300 trip if the dealer agrees to the replacement.

I know you’re a big ⭐️ fan but if I had the leverage to get a couple of new tires, I’d request the front PSS tires be replaced with AS4s, leaving me with 4 new matching tires rather than only two new PSS tires and two with maybe a year’s worth of tread left.

[Westside Guy]

Originally Posted by StanDiego

I know you’re a big ⭐️ fan but if I had the leverage to get a couple of new tires, I’d request the front PSS tires be replaced with AS4s, leaving me with 4 new matching tires rather than only two new PSS tires and two with maybe a year’s worth of tread left.

In a perfect world I would put Pilot Sport 4S on all four wheels! 👍🏻

[tracer bullet]

Originally Posted by Westside Guy

In a perfect world I would put Pilot Sport 4S on all four wheels! 👍🏻

Definitely depends on where you live. Unless you track the car and can truly explore the limits of the tires, the AS4's can be better. I have them on my 135i and they of course aren't the best summer tire ever but they are 90% there, and as a side bonus you can drive them in MN basically year round. PS4's are probably good for 2/3 to 3/4 of the year and then you have to either swap them or park the car. They turn into round rocks as the temps get close to freezing.

[Westside Guy]

Originally Posted by tracer bullet

Definitely depends on where you live. Unless you track the car and can truly explore the limits of the tires, the AS4's can be better. I have them on my 135i and they of course aren't the best summer tire ever but they are 90% there, and as a side bonus you can drive them in MN basically year round. PS4's are probably good for 2/3 to 3/4 of the year and then you have to either swap them or park the car. They turn into round rocks as the temps get close to freezing.

Never an issue in south Florida. 😎

[StanDiego]

Originally Posted by tracer bullet

Definitely depends on where you live. Unless you track the car and can truly explore the limits of the tires, the AS4's can be better. I have them on my 135i and they of course aren't the best summer tire ever but they are 90% there, and as a side bonus you can drive them in MN basically year round. PS4's are probably good for 2/3 to 3/4 of the year and then you have to either swap them or park the car. They turn into round rocks as the temps get close to freezing.

It not only depends upon where you live but where and when you travel and, as you mentioned, whether you actually drive your car to the limits of the tire.

Even those who live in Florida might conceivably want to drive their Z4 to cooler climates, snow skiing, mountain twisties during cold weather, or whatever.

On the other hand, some might occasionally track their car and never drive the Z4 in cold weather.

Others might enjoy lightly spirited driving year round and appreciate longer lasting tires.

My point: to imply that only one tire, the OEM Michelin star tire (or 4S for that matter) should be used on our Z4 is ridiculous. BMW themselves have placed other branded tires on the Z4. Select what works for your situation, ideally selecting the highest quality, best performing tires that fit your situation.

If the OEM star tire is the only thing that trips your trigger, go for it. BMW service departments will love you for it. Promoting that philosophy dramatically reduces the number of tires they need to carry in stock.

[phdat28]

Alright update. No help. Direct quote from sales person who helped me:

Hi , I talked to used car manager and he said it’s normal sometimes you have different tires on the car and it won’t be a liability issues

Guess I’m out of luck. Will have to drive moderately with these tires then.

[StanDiego]

Originally Posted by phdat28

Alright update. No help. Direct quote from sales person who helped me:

Hi , I talked to used car manager and he said it’s normal sometimes you have different tires on the car and it won’t be a liability issues

Guess I’m out of luck. Will have to drive moderately with these tires then.

I'm sorry to hear that but not surprised. FWIW, your rear tires are likely to have a lot of tread remaining when your fronts need replacing. At such time, I recommend you put the All Season 4 on the front, giving you a matching set of 4. Then, once your rear AS4s need replaced, the fronts may be close enough that you can decide what you want to replace all four tires with. As you probably know, the front and rear tires are a different size so they can't be rotated.

The following link might be helpful at that time:

https://www.tirerack.com/tires/TireS...erformance=ALL

[Argo]

Originally Posted by Westside Guy

Would you accept two different types of tires if you were the buyer???

It'd be something I'd avoid (or use as a bargaining token). But that's not what I was saying, my whole point was that it was not something that would be considered "out of spec" so it'd be quite hard to have it "fixed" after the sale.

Originally Posted by phdat28

Guess I’m out of luck. Will have to drive moderately with these tires then.

It'll definitely have a slightly different driving characteristic than with identical tires, however this also happens to an extent with different wear levels on the same type of tire.

One good thing though, is that the AS4 is pretty much the highest performance all season tire on the market (or very close to it). I'd say it likely matches the traction of "over 200 TW" summer tires from ~15 years ago.

Finally, as with any new car (or even new tires on the same car) you should probably get familiar with how it handles before pushing it too hard. I think once you know it the AS4s will definitely have enough grip to make you happy. Also, traction control on these cars is really good, so that will also help you a lot.

[Westside Guy]

Originally Posted by phdat28

Alright update. No help. Direct quote from sales person who helped me:

Hi , I talked to used car manager and he said it’s normal sometimes you have different tires on the car and it won’t be a liability issues

Guess I’m out of luck. Will have to drive moderately with these tires then.

Three quick questions:

Did you purchase the car from a BMW dealer?

Was it a CPO?

Have you measured the thread wear yet on all of the tires? If yes, what are the measurements?

[MisanoblueZ4]

Originally Posted by phdat28

Alright update. No help. Direct quote from sales person who helped me:

Hi , I talked to used car manager and he said it’s normal sometimes you have different tires on the car and it won’t be a liability issues

Guess I’m out of luck. Will have to drive moderately with these tires then.

In other words….we really don’t care anymore since we got your $$

Which is to be expected. But then saying it’s “normal” to have mismatch tires is ridiculous, a flat out lie. In the past that is something a dealer would use to lower trade value (mismatched or worn tires). I have bought and sold a lot of cars over the years…never have bought a car with mismatched tires.

They are fortunate you didn’t catch this upon inspection, otherwise you could have easily negotiated a matching set…..they would have accommodated a few hundred dollars (their cost) to slap on 2 tires for the sale to go through.

[Living Dead]

Originally Posted by phdat28

Guess I’m out of luck. Will have to drive moderately with these tires then.

If it were me I'd get two rears that match the front summers and drive until worn since the rears are probably newer and can be stored longer I would then buy two fronts in the all season when it's time to replace the summers and you will not have to cough up for a full set at once.