0000 When driving on a race track

WARNING: This page is about a different car, the 2018 BMW 330i xDrive and 2017 BMW 330i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Attention!

The customer must be informed that, in particular, the brake pads, wear indicator and the flat tire monitor installed as standard are not designed for race track operation. The vehicle is also not designed for motor sport competition racing.

Excessive loading of the vehicle, e.g. by operating it on a race track or in motor sport competition racing, is not covered by the warranty.

The following aspects should at least be considered/checked, if the customer still wants to drive on a racetrack:

The vehicle, or rather the engine, should be carefully run in before using it on the race track. A break-in period of at least 2000 km.

Recommendation: Carry out an oil change after the break-in period.

The duration of the highly dynamic drives on the racetrack must be increased slowly, since the rear axle differential must still run in high performance operation. Meanwhile, the temperature increases.

For driving on a race track, the following extensions must be considered and implemented on the vehicle.

Model: _____________

Scope of checks before driving on the race track:
Vehicle check	OK	Comment
Perform a comprehensive vehicle check service. -> SCOPE OF THE VEHICLE CHECK SERVICE
Engine	OK	Comment
Perform oil-level check. -> If necessary, top up to the maximum level.
Transfer box (concerns only those vehicles with rear axle differential with HOC)	OK	Comment
Perform transfer box oil change.
Cooling System	OK	Comment
Visual inspection of the radiator for contamination. -> Draw off contamination.
Brake system	OK	Comment
Check the age of the brake fluid - see Service Manual/Service history. -> The age of the brake fluid should not exceed 1 year.
Check fill level in brake fluid expansion tank. -> If necessary, top up to the maximum level.
Check the brake pad thickness on the front axle. -> Wear material thickness ≥ 9 mm -> Ideally, install new brake pads. Recommendation for M-vehicles: Use Sport brake pads, if available for that model.
Check the brake pad thickness on the rear axle. -> Wear material thickness ≥ rear axle ≥ 8 mm -> Ideally, install new brake pads. Recommendation for M-vehicles: Use Sport brake pads, if available for that model.
Check the brake disc thickness on the front axle. -> Minimum brake disc thickness: ≥ Minimum brake disc thickness + 1 mm -> Ideally, install new brake discs.
Check the brake disc thickness on the rear axle. -> Minimum brake disc thickness: ≥ Minimum brake disc thickness + 1 mm -> Ideally, install new brake discs.
Visual inspection of the brake line and brake hose for tightness, damage and porosity.
Wheels/tires	OK	Comment
Check wheels/tires for suitability for operation on the race track -> Winter tires, all-season tires and tires on steel rims are absolutely unsuitable. Recommendation: Use Sport tires.
Check the tire pressure of all the tires and adjust, if required. -> In order to increase the service life and tire performance, a reduction in the tire pressure is recommended for the race track. To do this, proceed as follows: Drive the tires warm. Set the tire pressure according to the prescribed value on the tire pressure label for partial loads. Initialize RDC. NOTE: The display of tire inflation pressure is possible only up to an operating temperature of systems of 120 °C. At higher temperatures, which can be reached during racing operation, the display is suppressed and a Check Control message is issued. After cooling down, the system functions again without limitations.
Background: The tire pressure increases due to the temperature increase in the tire when operated on the race track. This reduces the contact surface of the tire to the road, leading to an increased temperature load on the running surface. The adjustment of the tire pressure in tires that have been warmed up as opposed to tires in a cold state leads to a reduction in the pressure and thus, due to an increased tire contact area, to a more equal load on the tire.

Extensions when drMng on a race track:
Warm up	OK	Comment
Drive a warming up lap. > Bring the engine up to operating temperature. Fast driving at a medium RPM level and medium dynamics.
Cool down	OK	Comment
Drive a cooling down lap. -> Fast driving at a medium RPM level and medium dynamics. Avoid brake load as far as possible.

Scope of checks after driving on the race track:
Engine	OK	Comment
Perform an oil-level check according to the operating instructions. -> If necessary, top up to the maximum oil level.
Front axle transmission (applies only to G15 with N63 engine)	OK	Comment
Perform an oil change on the front axle transmission.
Transfer box (concerns only M vehicles)	OK	Comment
Perform transfer box oil change.
Rear axle differential	OK	Comment
If a rear axle differential with lock is installed. -> Change the oil.
Cooling System	OK	Comment
Visual inspection of the radiator for contamination. -> Draw off contamination.
Brake system	OK	Comment
Check fill level in brake fluid expansion tank. -> If necessary, top up to the maximum level.
Check the brake pad thickness on the front axle. -> Replace brake pads when the remaining brake pad thickness is undershot (min. thickness 3.7 mm)
Check the dust boots on the brake calipers of the front axle for damage.
Check the brake pad thickness on the rear axle. -> Replace brake pads when the remaining brake pad thickness is undershot (min. thickness 3.7 mm)
Check the dust boots on the brake calipers of the rear axle for damage.
Check the brake disc thickness and their state on the front axle. -> Replace brake discs when: Undershoots the minimum brake disc thickness Scoring Heat cracks Thickness difference
Check the brake disc thickness and their state on the rear axle. -> Replace brake discs when: Undershoots the minimum brake disc thickness Scoring Heat cracks Thickness difference
Wheels/tires Note to customer: Perform the following points for wheels/tires immediately after the racing track operation and before driving on public streets.	OK	Comment
Check wheels/tires for damage.
Check wheels/tires for minimum tread depth.
Check the tire pressure of all the tires and adjust, if required. Allow tires to cool down. Set the tire pressure according to the prescribed value on the tire pressure label. Initialize RDC.
Background: Adjust the tire pressure in cold tires, as otherwise it can lead to tire pressure monitor warnings due to the low pressure.
Vehicle check	OK	Comment
Perform a comprehensive vehicle check service. -> SCOPE OF THE VEHICLE CHECK SERVICE

_____________	_____________	_______________
Date	Mechanic	Workshop Supervisor