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Under the Hood
The 528i has a 240-horsepower, 3.0-liter six-cylinder, while the 535i gets a 300-hp, turbocharged 3.0-liter six-cylinder. The 550i has a twin-turbo, 4.4-liter V-8 that makes 400 hp. All three use ...

Tire inflation pressures for X6 xDrive50i
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Actions in the event of a flat tire
Normal tires 1. Identify the damaged tire. Do this by checking the air pressure in all four tires. If the tire inflation pressure in all four tires is correct, the Tire Pressure Monitor may no ...