BMW M340i xDrive Spare Tire
The BMW M340i xDrive does not come with a spare tire as a standard feature; instead, it is equipped with run-flat tires which allow the vehicle to continue at a reduced speed for a limited distance even after a puncture. This model specifically uses the BMW emergency mobility system, which combines the use of run-flat tires with additional tire pressure monitoring in the vehicle's system to alert the driver immediately if a loss of tire pressure occurs. In terms of tire size, the M340i xDrive uses 225/45R18 tires at the front and 255/40R18 tires at the rear. However, it is always advisable for owners to confirm this information based on their specific vehicle, including checking with the vehicle's manual or the manufacturer.
BMW M340i xDrive models manufactured from 2020 to 2025 have tires with overall diameter ranging from 25.9" to 26.1", allowing the use of a temporary spare tire with a near same diameter as the OEM tire. Tire diameter and wheel diameter clearance have been taken into account for the specific BMW M340i xDrive years and trims.
Listed below are compact spare tire sizes that can fit some BMW M340i xDrive vehicles based on acceptable tire diameter range of 25.1" to 26.9". Some M340i xDrive models may require the use of a traditional full-size tire as a spare. To ensure safe temporary mobility in case of a road emergency, always refer to the vehicle owner's manual for the correct BMW M340i xDrive spare tire size designated by vehicle's manufacturer.
| Spare Size | Spare Diameter |
|---|---|
| T155/70R18from $178.60 | 26.6" |
| T155/70D17from $175.43 | 25.6" |
| T155/60R18from $164.19 | 25.3" |
| T135/90R17from $158.19 | 26.6" |
| T135/90R16from $155.20 | 25.6" |
| T135/70R19from $147.99 | 26.5" |
| T155/70R17from $139.76 | 25.6" |
| T135/70D18from $135.05 | 25.5" |
| T135/80R17from $133.66 | 25.5" |
| T135/70R18from $131.66 | 25.5" |
| T135/80R18from $125.96 | 26.5" |
| T145/70D18from $118.97 | 26" |
| T115/95R17from $117.54 | 25.6" |
| T135/80D17from $112.58 | 25.5" |
| T155/80D17from $97.90 | 26.8" |
| T145/90D16from $88.99 | 26.3" |
| T145/80D17from $81.99 | 26.1" |
| T155/70D18 | 26.6" |
| T155/80D16 | 25.7" |
| T155/80R16 | 25.7" |
| T155/80R17 | 26.8" |
| T165/70D17 | 26.1" |
| T165/70R17 | 26.1" |
| T185/55D18 | 26" |
| T185/55R18 | 26" |
| T185/60D17 | 25.7" |
| T145/90R16 | 26.3" |
| T145/80R17 | 26.1" |
| T125/70R19 | 25.9" |
| T135/60D19 | 25.4" |
| T135/60R19 | 25.4" |
| T135/80D18 | 26.5" |
| T135/90D16 | 25.6" |
| T135/90D17 | 26.6" |
| T145/65D18 | 25.4" |
| T145/65R18 | 25.4" |
| T145/70R18 | 26" |
| T185/60R17 | 25.7" |
Spare Tire for BMW M340i xDrive
Discover spare tire solutions for your BMW M340i xDrive based on model year. Generally, spare tire size has to be within 3% of the overall diameter of the original equipment tire size. BMW M340i xDrive tire size can vary depending on the year and trim. Make sure to check the load index and load capacity of the spare tire to ensure that it is capable to safely support your vehicle's weight.
| Vehicle | Recommended Spare |
|---|---|
| 2025 BMW M340i xDrive | 37 compact spare tires fit the OEM tire diameter range of 25.3" to 26.9" |
| 2024 BMW M340i xDrive | 38 compact spare tires fit the OEM tire diameter range of 25.1" to 26.9" |
| 2023 BMW M340i xDrive | 38 compact spare tires fit the OEM tire diameter range of 25.1" to 26.9" |
| 2022 BMW M340i xDrive | 38 compact spare tires fit the OEM tire diameter range of 25.1" to 26.9" |
| 2021 BMW M340i xDrive | 38 compact spare tires fit the OEM tire diameter range of 25.1" to 26.9" |
| 2020 BMW M340i xDrive | 38 compact spare tires fit the OEM tire diameter range of 25.1" to 26.9" |
All listed guides, data and/or calculations are for informational purposes only. Spare-Tires.com does not warrant or make any representations regarding the accuracy of or the results of the use of this information. Always refer to vehicle owner's manual for the correct spare tire size configuration.