BMW GRAN COUPE 4 Series Owner's Manual page 201

Things to remember when driving Driving tips
Condensation water under the parked
vehicle
When using the automatic climate control,
condensation water develops and collects un‐
derneath the vehicle.
Driving on racetracks
Higher mechanical and thermal loads during
racetrack operation lead to increased wear.
This wear is not covered by the warranty. The
vehicle is not designed for use in motor sports
competition.
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Online Edition for Part no. 01402978272 - II/17