See also:

Refrigerant of the air-conditioning system
The air-conditioning system is filled with R134a refrigerant and a special PAG lubricant. Never use refrigerant R 12 (CFC) or mineral lubricants. Otherwise, you could damage the air-conditioni ...

Cleaning the wheels
Do not use acidic wheel cleaning products to remove brake dust. This could damage wheel bolts and brake components. Do not park the vehicle for an extended period straight after cleaning it, ...

Running the Numbers
Thanks to diesel engines' higher efficiency, the Bluetec achieves nearly the same EPA ratings as a Cadillac Escalade Hybrid. The figures are 27 percent better overall than those of the gas GL450, ...