X Remove the spring cotter.
■ Remove the bolt from the ball coupling recess.
■ Remove the ball coupling from the ball coupling recess.
■ Clean the ball coupling if it is dirty.
Information on cleaning and care of the trailer tow hitch can be found at .
Selecting, mounting and replacing
tires
• Only mount tires and wheels of the same
type and make.
• Only mount approved tires of the correct
size onto the wheels.
• Tires are supplied with a protective layer
from the factory. Break in n ...
Additional service products
Checking the coolant level
WARNING
In order to avoid potentially serious burns:
• use extreme caution when opening the
hood if there are any signs of vapor or
coolant leaking from the cooling sys ...