The wear patterns on the front and rear wheels differ:
On vehicles that have the same size front and rear wheels, rotate the wheels according to the intervals in the tire manufacturer's warranty book in your vehicle documents. If this is not available, rotate the tires every 3,000 to 6,000 miles (5,000 to 10,000 km), depending on the wear. Ensure that the direction of rotation is maintained. It is imperative to observe the instructions and safety notes on "Changing a wheel" when doing so Preparing the vehicle for a wheel change. Notes on storing wheels When storing wheels, observe the following notes:
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Mercedes Benz C-Class (W204) 2007 - 2014 Training Manual > Emergency Operations: Resetting triggered NECK-PRO head restraints
If the NECK-PRO head restraints were triggered during an accident, you have to reset the head restraints for the driver and front passenger seats. Otherwise, this additional protection will not be available during a later rear end collision. Triggered head restraints can be recognized by the fact th ...