I purchased the tire coverage and looked over some discussions here about replacing tires but none addressed the fact that if my damaged tire is replaced under the policy, that would leave me with the issue of replacing the other one. FYI, it is a rear wheel drive car.

Depending on how worn the other tire is, you may need to replace its mate at your expense. Then again if the damaged tire is worn, the coverage wouldn't be paying for much of it anyway. They prorate based on remaining life.

What does proration have to do with this question? I have tire replacement protection - I get a new tire, right?

On my previous car I had 2 original tires, and 2 that were replaced at different times due to two different accidents and it was fine, i was expecting a change in noise but there wasnt. You should be fine.

If you had a new tire when it failed. Otherwise they'll prorate the replacement. So you'll get the money for a new tire, less an offset for wear. You'd be responsible for the difference. It should be in the language of the long form contract you signed for the coverage.

I've had 2 tires replaced (about a year apart) under a tire and wheel policy. The most recent was a summer 19" Pirelli with about 6000 miles. They replaced the tire at no cost to me, no prorating for wear. Only one tire was replaced each time, so there was a slight difference in wear between the remaining tires. I haven't noticed any problems.

Tires can also be shaved to match wear.

With that logic, you could hypothetically run your tires down to 10% of their remaining life, get a puncture in all four, and get free replacements?

I guess so. You'd have to have some conveniently well timed punctures though. Both times I needed a new tire the car was out of service for about 3 days due to the difficulty finding a replacement time. Not worth the hassle. I'd rather not have to deal with the flats and just replace the tires when worn.

My tire and wheel coverage calls for replacement only if the tire still has at least 3/32 inch tread depth. So I guess very worn tires would not be replaceable in the event of road hazard damage.

Dealer quoted $48x to replace a run flat tire. Is it really that expensive? Fotrunatory I have wheel and tire insurance from the dealer when I first bought the car.

I don’t know about Mercedes but, on my mdx with tire and wheel replacement. I had a flat that couldn’t be repaired. They replaced it at about 17,000 miles. I sent the bill into the insurance. They sent a check for the whole amount. AWD, one tire. There are fraud laws. I looked at my MDX contract. It even includes replacement tires up to 7 years. I could find no limits. The tire has to have at least 2/32 of tread life. There is no prorating.
Sorry, didn’t realize how old this thread was.