What happens if I drive my BMW on a flat tire?

Driving on a flat or underinflated tire can put extra stress on your wheels and alignment. While it’s sometimes necessary to drive a short distance on a flat tire to get to a safe place, don’t take any other trips in your 840i until you can have the flat tire repaired or replaced.

Will a temporary sealant fix my BMW's flat tire?

A temporary sealant may be able to help you get to a repair location safely. But temporary or emergency sealants could possibly damage TPMS sensors, and in some cases may even void the warranty on your Bridgestone or Firestone tires. If your tire needs extensive repair, sealant can add time and labor costs to the process.

What’s the harm in using my spare tire for a while?

Don't rely on your spare tire for too long. Your 2025 BMW 840i may come equipped with a compact spare tire. A spare is different than an everyday tire and is only designed to be driven a certain number of miles at lower speeds.

Who repairs BMW 840i tires?

Your nearest Firestone Complete Auto Care is equipped to handle most BMW 840i tire repairs, but it depends on how severe the damage is.

Why do the tires on my 840i keep losing air?

Tire punctures, damaged wheels, and leaking valve stems are possible reasons for your 840i tires continuously losing air.

Can I replace just one or two tires on my BMW 840i?

Replacing all four tires on your 840i is not always necessary. However, it is recommended that you replace tires in pairs or all four tires at the same time for safety and performance reasons. If you have two new tires and two worn tires, the worn tires may not grip the road as well as the new tires, which could cause your car to slide or lose control. Always refer to your vehicle owner’s manual since some vehicles require you to replace all four tires if there is a tread difference greater than 3/32”.

2025 BMW 840i Tire Repair Services

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BMW 840i Tire Repair

City populations are exploding. Roads are expanding. It seems construction is everywhere these days! That means more tire-damaging road debris and flat tires. Firestone Complete Auto Care is here for you when your 2025 BMW 840i needs flat tire repair or inspection. In some cases, a tire doesn’t have to be replaced – it can be plugged and patched with a simple repair. Depending on the damage, though, a repair might not be the right move. Our technicians can determine which option is best for your situation. We’ll begin by taking a look at where the damage is, the type and extent of the tire damage, and how all of your tires are wearing.

If a repair on your 2025 BMW 840i tire is feasible and safe, we'll follow three basic steps to repair it: (1) Take the tire off the wheel for easy inspection, (2) fill in the area that’s been punctured to prevent damage from moisture, and (3) seal the inner liner with a repair unit to prevent air loss.

When Is It Time for BMW 840i Tire Replacement?

Unfortunately, some 2025 BMW 840i tire damage can’t be effectively repaired. Even if your tire damage is minor, if your tires have less than 2/32nd inch of tread remaining, a repair isn’t possible (or safe). This tread depth indicates that the tire is worn out, and needs to be replaced. If your tire is not yet worn down, there are other forms of damage that simply can’t be repaired, like a tire puncture with a diameter bigger than ¼ inch; a puncture in the tire sidewall (or anywhere else that’s not within the tread area); multiple punctures that are too close together (less than 16 inches between them); and a tire with cuts or tread separation.

Sometimes, it's in your best interest to buy one, two, or four new tires depending on BMW's recommendation. For example, it’s usually recommended that you replace all four tires at the same time on AWD vehicles. Why? Because having four identical tires is vital for the AWD system to perform like it’s supposed to. However, this may not be necessary if your remaining three tires are new. It’s possible that you will only need to replace the tire that’s damaged – just make sure it’s the same size, type, and brand as the rest of your tires. Your tire technician can help you decide how many tires to replace and the kind of tire to purchase.

BMW 840i Tire Inspection

A flat tire is a surefire sign of tire damage, but other indicators of tire issues aren’t so easy to spot. Bent tire rims, bulging tire sidewalls, leaks under your car, or noise from your exhaust system can all point to tire-related damage that should be addressed quickly. Bring your 2025 BMW 840i in for a tire inspection so we can assess the damage and help keep you safe on the road.

Frequently Asked BMW 840i Tire Repair Questions

What happens if I drive my BMW on a flat tire? Driving on a flat or underinflated tire can put extra stress on your wheels and alignment. While it’s sometimes necessary to drive a short distance on a flat tire to get to a safe place, don’t take any other trips in your 840i until you can have the flat tire repaired or replaced.
Will a temporary sealant fix my BMW's flat tire? A temporary sealant may be able to help you get to a repair location safely. But temporary or emergency sealants could possibly damage TPMS sensors, and in some cases may even void the warranty on your Bridgestone or Firestone tires. If your tire needs extensive repair, sealant can add time and labor costs to the process.
What’s the harm in using my spare tire for a while? Don't rely on your spare tire for too long. Your 2025 BMW 840i may come equipped with a compact spare tire. A spare is different than an everyday tire and is only designed to be driven a certain number of miles at lower speeds.
Who repairs BMW 840i tires? Your nearest Firestone Complete Auto Care is equipped to handle most BMW 840i tire repairs, but it depends on how severe the damage is.
Why do the tires on my 840i keep losing air? Tire punctures, damaged wheels, and leaking valve stems are possible reasons for your 840i tires continuously losing air.
Can I replace just one or two tires on my BMW 840i? Replacing all four tires on your 840i is not always necessary. However, it is recommended that you replace tires in pairs or all four tires at the same time for safety and performance reasons. If you have two new tires and two worn tires, the worn tires may not grip the road as well as the new tires, which could cause your car to slide or lose control. Always refer to your vehicle owner’s manual since some vehicles require you to replace all four tires if there is a tread difference greater than 3/32”.

Repair Services for Your 2025 BMW 840i

Your BMW 840i runs best when it’s well cared for. Keep your car running newer, longer with repairs from Firestone Complete Auto Care. Learn more about 2025 BMW 840i repairs below.