BMW 3 Owners & Service Manuals

BMW 3: Wheels and tires

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 Tire inflation pressure

General information The tire characteristics and tire inflation pressure influence the following: The service life of the tires. Road safety. Driving comfort. Fuel consumption. Safety informatio

 Tire identification marks

Tire size 245/45 R 18 96 Y 245: nominal width in mm 45: aspect ratio in % R: radial tire code 18: rim diameter in inches 96: load rating, not for ZR tires Y: speed rating, before the R on ZR tires Max

 Tire tread

Summer tires Do not drive with a tire tread of less than 0.12 in/3 mm, otherwise there is an increased risk of hydroplaning. Winter tires Do not drive with a tire tread of less than 0.16 in/4 mm, as s

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 Tow-starting and towing

Safety information Warning Due to system limits, individual functions can malfunction during tow-starting/towing with the Intelligent Safety systems activated. There is a risk of accident. Switch all Intelligent Safety systems off prior to tow-starting/towing. Steptronic transmission: transporting

 Electrical connections

The high-voltage battery unit also has a signal connection, as well as the high-voltage connection. The high-voltage battery unit is integrated in the refrigerant circuit in order for it to be cooled. Connections of the SP41 high-voltage battery Venting unit Signal connector Connections for

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