Select BMW 840i year to see its original equipment tire sizes and corresponding tire inflation pressures.
2020 BMW 840i Tire Pressure
Recommended tire pressure for 2020 BMW 840i is 32 psi to 39 psi for front tires and 32 psi to 44 psi for rear tires.
| Tire Size | Front Tire Pressure | Rear Tire Pressure |
|---|---|---|
| F: 245/35R20 95Y XL R: 275/30R20 97Y XL |
35 - 39 psi | 41 - 44 psi |
| 245/40R19 98H XL | 32 psi | 35 - 38 psi |
| F: 245/40R19 98Y XL R: 275/35R19 100Y XL |
32 psi | 35 psi |
| 245/45R18 100V XL | 32 psi | 35 psi |
| F: 245/45R18 100H XL R: 275/40R18 103H XL |
32 psi | 32 psi |
| F: 245/45R18 100Y XL R: 275/40R18 99Y |
32 psi | 32 psi |
Select BMW 840i trim to see its original equipment tire sizes and corresponding tire inflation pressures.
Tire Pressure for BMW 840i Base Model
Recommended tire inflation for BMW 840i Base Model is 32 psi to 39 psi for front tires and 32 psi to 44 psi for rear tires.
| Tire Size | Front Tire Pressure | Rear Tire Pressure |
|---|---|---|
| F: 245/35R20 95Y XL R: 275/30R20 97Y XL |
35 - 39 psi | 41 - 44 psi |
| 245/40R19 98H XL | 32 psi | 35 - 38 psi |
| F: 245/40R19 98Y XL R: 275/35R19 100Y XL |
32 psi | 35 psi |
| 245/45R18 100V XL | 32 psi | 35 psi |
| F: 245/45R18 100H XL R: 275/40R18 103H XL |
32 psi | 32 psi |
| F: 245/45R18 100Y XL R: 275/40R18 99Y |
32 psi | 32 psi |
Recommended tire inflation for BMW 840i original equipment tire sizes with matching trims and model years.
| Tire Size | Front Tire Pressure | Rear Tire Pressure |
|---|---|---|
| F: 245/35R20 95Y XL R: 275/30R20 97Y XL |
35 - 39 psi | 41 - 44 psi |
| Years: 2020 Trims: Base Model |
||
| 245/40R19 98H XL | 32 psi | 35 - 38 psi |
| Years: 2020 Trims: Base Model |
||
| F: 245/40R19 98Y XL R: 275/35R19 100Y XL |
32 psi | 35 psi |
| Years: 2020 Trims: Base Model |
||
| 245/45R18 100V XL | 32 psi | 35 psi |
| Years: 2020 Trims: Base Model |
||
| F: 245/45R18 100H XL R: 275/40R18 103H XL |
32 psi | 32 psi |
| Years: 2020 Trims: Base Model |
||
| F: 245/45R18 100Y XL R: 275/40R18 99Y |
32 psi | 32 psi |
| Years: 2020 Trims: Base Model |
||
What is the correct tire pressure for BMW 840i?
Recommended tire pressure for BMW 840i tires is 32 psi to 44 psi, set by BMW manufacturer and based on model's original equipment tire size to optimize vehicle performance, fuel efficiency and safety.
Where do I find the recommended tire pressure for BMW 840i?
BMW 840i recommended tire pressure can be found in owner's manual, on a tire placard on the side of driver's door or door jam, on the trunk lid, in the console or on the fuel door. Tire inflation will be listed in psi (pounds per square inch), bar or kPa (kilopascals).
How to check BMW 840i tire pressure?
To check BMW 840i tire pressure you will first need to determine its recommended tire pressure for the front and rear tires. Take off tire valve caps and use a tire pressure gauge to check tire inflation in every tire. Adjust BMW 840i tire pressure to its recommended levels. If overinflated, let some air out by pressing down the center plunger in the valve stem. If underinflated, add air with tire inflator. Recheck tire pressure to make sure all tires are properly inflated. Replace the valve stem caps. Make sure to check tire pressure when tires are "cold" and have not been driven for at least 3 hours. Remember that the front and rear tire pressures may differ.
What is proper tire pressure for BMW 840i replacement tires?
If you replace BMW 840i original equipment tires with non-stock tires that have different size or load capacity, new tires may require substantially different inflation pressures. Use our Replacement Tire Pressure Calculator to find proper tire inflation when switching to a different tire size.
What is optimal winter tire pressure for BMW 840i?
Tire pressure fluctuates with ambient temperatures. When temperatures drop, BMW 840i tires may lose approximately 1 psi of air pressure for every 10 degree Fahrenheit decrease. During winter BMW 840i tires can be inflated 3 to 5 psi above the recommended tire pressure settings to compensate for lower temperatures. Do not overinflate above the maximum tire inflation pressure value indicated on tire sidewall. Make sure to check tire pressure regularly in the winter to keep tires properly inflated for a safe ride on snow and icy roads.
Is my BMW 840i equipped with Tire Pressure Monitoring System (TPMS)?
If your BMW 840i is built after 2007, it is most likely equipped with a Tire Pressure Monitoring System. Check owner's manual to see if your model has TPMS.
Why is my BMW 840i TPMS warning light on?
If BMW 840i TPMS warning light comes on and stays on, it means at least one of the tires is underinflated. If TPMS warning light goes on and off, fluctuating ambient temperatures may be the reason. If BMW 840i TPMS warning light flashes for 90 seconds when you start the vehicle and then remains illuminated, the TPMS is not functioning properly and you should have it serviced.
How to reset BMW 840i Tire Pressure Monitoring System?
To reset TPMS on BMW 840i, follow the instructions in owner's manual. If TPMS will not reset, there may be a problem with tire pressure sensors.