Wheels and tires -> Snow chains for your BMW i4 2021-2025

Wheels and tires  
MOBILITY  
Do not exceed the speed limit of  
50 mph/80 km/h.  
Fine-link snow chains  
The manufacturer of the vehicle recommends  
the use of fine-link snow chains. Certain types  
of fine-link snow chains have been tested by  
the manufacturer of the vehicle and recom-  
mended as road-safe and suitable.  
Do not exceed a maximum distance traveled of  
125 miles/200 km.  
Replace the faulty tire and the sealant bottle  
from the tire repair set as soon as possible.  
For information on suitable snow chains, con-  
tact an authorized service center or another  
qualified service center or repair shop.  
Additional information:  
Flat tire monitor, refer to page 323.  
Tire pressure monitor, refer to page 316.  
Use  
System limits  
Use is only permitted in pairs on rear wheels  
equipped with the tires of the following wheel/  
tire sizes:  
If the tire cannot be made drivable, contact an  
authorized service center or another qualified  
service center or repair shop.  
Tire size  
Wheel size Rim offset (IS)  
36  
With Tire Pressure Monitor: Using sealant can  
damage the air pressure sensor. In this case,  
have the electronics checked and replaced at  
the next opportunity.  
245/45 R18 8.5J x 18  
Information on the wheel size and rim offset is  
located on the inside of the wheel.  
The list can also include wheel/tire sizes that  
are only suitable for certain models.  
Snow chains  
Safety information  
Warning  
Information on wheels and tires approved for  
the vehicle can be requested from an author-  
ized service center or another qualified service  
center or repair shop.  
Follow the snow chain manufacturer's instruc-  
tions.  
Mounting snow chains on unsuitable tires  
can cause the snow chains to come into  
contact with vehicle parts. There is a risk of  
accident, injury, and property damage. Only  
fit snow chains on tires recommended by  
the vehicle manufacturer for use with snow  
chains.  
If vehicle is equipped with Tire Pressure Moni-  
tor: When using snow chains, do not reset the  
Tire Pressure Monitor, otherwise, incorrect val-  
ues may be displayed.  
If vehicle is equipped with flat tire monitor:  
When using snow chains, do not initialize the  
flat tire monitor, otherwise, incorrect values  
may be displayed.  
Warning  
Insufficiently tight snow chains may damage  
tires and vehicle components. There is a  
risk of accident, injury, and property damage.  
Make sure that the snow chains are always  
sufficiently tight. Re-tighten as needed ac-  
cording to the snow chain manufacturer's in-  
structions.  
When driving with snow chains, activate the  
Dynamic Traction Control briefly to optimize  
the drive power.  
Maximum speed with snow chains  
Do not exceed a speed of 30 mph/50 km/h  
when using snow chains.  
315  
Online Edition for Part no. 01405B45E30 - VI/24  
Wheels and tires  
MOBILITY  
Functional requirements  
The following prerequisites must be met for  
the system; otherwise, reliable notification of a  
tire pressure loss is not assured:  
Tire pressure monitor  
Principle  
The Tire Pressure Monitor monitors the tire  
pressure and issues a warning if the tire pres-  
sure has dropped.  
After each tire or wheel change, the system  
detects and updates the mounted tires on  
the control display and displays them after  
a short trip.  
General information  
Sensors in the tire valves measure the tire in-  
flation pressure and tire temperature.  
Enter the information about the mounted  
tires in the tire settings when the system  
does not automatically detect the tires.  
Depending on the tires detected or registered,  
the system displays the specified nominal  
pressures on the control display and compares  
them with the current tire pressures.  
The Tire Pressure Monitor does not acti-  
vate until after driving for a few minutes:  
After a tire or wheel change.  
After a reset, when using tires with spe-  
cial approval.  
If tires are being used that are not specified  
in the tire inflation pressure details on the ve-  
hicle such as tires with special approval, the  
system needs to be actively reset. The system  
will then take over the actual tire inflation pres-  
sures as the target pressures.  
After changing the tire setting.  
For tires with special approval:  
After a tire or wheel change, a reset was  
performed with the correct tire inflation  
pressure.  
When operating the system, also note the in-  
formation found in the Tire inflation pressure  
chapter.  
After the tire inflation pressure was ad-  
justed to a new value, a reset was per-  
formed.  
Additional information:  
Tire inflation pressure, refer to page 301.  
Wheels with air pressure sensor.  
Safety information  
Tire settings  
General information  
Warning  
The information about the mounted tires can  
be entered in the tire settings if the system  
does not automatically detect the tires.  
The display of the target pressures is not  
a substitute for the tire inflation pressure de-  
tails on the vehicle. Incorrect entries in the  
tire settings can lead to incorrect target tire  
inflation pressure values. In this case, it can-  
not be guaranteed that the notification of a  
tire pressure loss will be reliable. There is a  
risk of injury and risk of property damage.  
Make sure that the sizes of your mounted  
tires are displayed correctly and match the  
information on the tires and the tire inflation  
pressure specifications on the vehicle.  
The tire sizes of the mounted tires can be  
gathered from the tire inflation pressure details  
on the vehicle or directly on the tires.  
The tire details do not need to be re-entered  
when the tire pressure is corrected.  
For summer and winter tires, the tire details  
entered last are stored. After a tire or wheel  
change, the settings of the tire sets used last  
can be selected.  
316  
Online Edition for Part no. 01405B45E30 - VI/24