2018 BMW 340i Spare Tire
The BMW 340i, celebrated for its dynamic performance and luxurious amenities, does not traditionally come equipped with a spare tire as part of its standard setup, primarily due to the manufacturer's preference for run-flat tires (RFT) and an effort to save space and reduce vehicle weight for improved efficiency and performance. However, for drivers who prioritize having a spare tire for emergencies, there are aftermarket solutions available. The recommended size for a BMW 340i spare tire is typically a compact, temporary use "donut" tire, designed to save space in the vehicle while providing a short-term solution for getting to a service location. This spare tire is generally smaller than the vehicle's standard tires, with common dimensions being 18 inches in diameter to match the BMW 340i's compatibility, although the exact width and profile may vary. Owners interested in purchasing a spare tire should also consider acquiring a compatible jack and tire iron, ensuring they have all necessary tools for an emergency tire change. It's advisable to consult with a BMW dealership or a specialized automotive parts provider to purchase the correct size and type of spare tire, ensuring it fits the specific model year and configuration of the 340i.
2018 BMW 340i comes with 2 OEM tire size options. Select the original equipment the tire size installed on your vehicle to see all spare tires that have roughly the same tire diameter and can be used as a temporary replacement in the event of a flat tire. Remember that load carrying capacity of the spare tire must be the same or higher than the load carrying capacity of the original equipment tires in order to safely support the weight of your vehicle. Refer to vehicle owner's manual or contact BMW dealership to confirm the correct 2018 BMW 340i spare tire size.
225/40R19 (Rear: 255/35R19)
225/40R19 tire has a diameter of 26.1". These temporary spare tires fit the acceptable tire diameter range of 25.3" to 26.9".
| Spare Size | Spare Diameter | Diameter Differential |
|---|---|---|
| T155/70R18from $178.60 | 26.6" | 1.9% |
| T155/70D17from $175.43 | 25.6" | -1.9% |
| T135/90R17from $158.19 | 26.6" | 1.9% |
| T135/90R16from $155.20 | 25.6" | -1.9% |
| T135/70R19from $147.99 | 26.5" | 1.5% |
| T155/70R17from $139.76 | 25.6" | -1.9% |
| T135/70D18from $135.05 | 25.5" | -2.3% |
| T135/80R17from $133.66 | 25.5" | -2.3% |
| T135/70R18from $131.66 | 25.5" | -2.3% |
| T135/80R18from $125.96 | 26.5" | 1.5% |
| T145/70D18from $118.97 | 26" | -0.4% |
| T115/95R17from $117.54 | 25.6" | -1.9% |
| T135/80D17from $112.58 | 25.5" | -2.3% |
| T155/80D17from $97.90 | 26.8" | 2.7% |
| T145/90D16from $88.99 | 26.3" | 0.8% |
| T145/80D17from $81.99 | 26.1" | 0% |
| T155/70D18 | 26.6" | 1.9% |
| T155/80D16 | 25.7" | -1.5% |
| T155/80R16 | 25.7" | -1.5% |
| T155/80R17 | 26.8" | 2.7% |
| T165/70D17 | 26.1" | 0% |
| T165/70R17 | 26.1" | 0% |
| T185/55D18 | 26" | -0.4% |
| T185/55R18 | 26" | -0.4% |
| T185/60D17 | 25.7" | -1.5% |
| T145/90R16 | 26.3" | 0.8% |
| T145/80R17 | 26.1" | 0% |
| T125/70R19 | 25.9" | -0.8% |
| T135/60D19 | 25.4" | -2.7% |
| T135/60R19 | 25.4" | -2.7% |
| T135/80D18 | 26.5" | 1.5% |
| T135/90D16 | 25.6" | -1.9% |
| T135/90D17 | 26.6" | 1.9% |
| T145/65D18 | 25.4" | -2.7% |
| T145/65R18 | 25.4" | -2.7% |
| T145/70R18 | 26" | -0.4% |
| T185/60R17 | 25.7" | -1.5% |
225/45R18
225/45R18 tire has a diameter of 25.9". These temporary spare tires fit the acceptable tire diameter range of 25.1" to 26.7".
| Spare Size | Spare Diameter | Diameter Differential |
|---|---|---|
| T155/70R18from $178.60 | 26.6" | 2.7% |
| T155/70D17from $175.43 | 25.6" | -1.2% |
| T155/60R18from $164.19 | 25.3" | -2.3% |
| T135/90R17from $158.19 | 26.6" | 2.7% |
| T135/90R16from $155.20 | 25.6" | -1.2% |
| T135/70R19from $147.99 | 26.5" | 2.3% |
| T155/70R17from $139.76 | 25.6" | -1.2% |
| T135/70D18from $135.05 | 25.5" | -1.5% |
| T135/80R17from $133.66 | 25.5" | -1.5% |
| T135/70R18from $131.66 | 25.5" | -1.5% |
| T135/80R18from $125.96 | 26.5" | 2.3% |
| T145/70D18from $118.97 | 26" | 0.4% |
| T115/95R17from $117.54 | 25.6" | -1.2% |
| T135/80D17from $112.58 | 25.5" | -1.5% |
| T145/90D16from $88.99 | 26.3" | 1.5% |
| T145/80D17from $81.99 | 26.1" | 0.8% |
| T155/70D18 | 26.6" | 2.7% |
| T155/80D16 | 25.7" | -0.8% |
| T155/80R16 | 25.7" | -0.8% |
| T165/70D17 | 26.1" | 0.8% |
| T165/70R17 | 26.1" | 0.8% |
| T185/55D18 | 26" | 0.4% |
| T185/55R18 | 26" | 0.4% |
| T185/60D17 | 25.7" | -0.8% |
| T145/90R16 | 26.3" | 1.5% |
| T145/80R17 | 26.1" | 0.8% |
| T145/70R18 | 26" | 0.4% |
| T125/70R19 | 25.9" | 0% |
| T135/60D19 | 25.4" | -1.9% |
| T135/60R19 | 25.4" | -1.9% |
| T135/80D18 | 26.5" | 2.3% |
| T135/90D16 | 25.6" | -1.2% |
| T135/90D17 | 26.6" | 2.7% |
| T145/65D18 | 25.4" | -1.9% |
| T145/65R18 | 25.4" | -1.9% |
| T185/60R17 | 25.7" | -0.8% |
More BMW 340i Spare Tires
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.