Mercedes-Benz E-Class Sedan Operator's Manual page 315

Notes on care of vehicle parts
& WARNING Risk of entrapment if the
windshield wipers are switched on while
the windshield is being cleaned
If the windshield wipers are set in motion
while you are cleaning the windshield or
wiper blades, you can be trapped by the
wiper arm.
Observe the following information:
Information on cleaning and care
Wheels/rims Use water and acid-free wheel cleaners.
Windows Clean the windows on the inside and outside using a damp
cloth and cleaning products recommended by Mercedes-
Benz.
Always switch off the windshield wipers
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and the ignition before cleaning the
windshield or wiper blades.
& WARNING Risk of burns from tailpipes
and tailpipe trim
The tailpipe and tailpipe trim can become
very hot. If you come into contact with these
parts of the vehicle, you could burn yourself.
Always be particularly careful around
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the tailpipe and the tailpipe trim.
Allow the vehicle parts to cool down
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before you touch them.
Avoiding vehicle damage
Do not use acidic wheel cleaners to remove brake dust.
R
This could damage wheel bolts and brake components.
To avoid corrosion of the brake discs and brake linings,
R
drive the vehicle for a few minutes after cleaning before
parking it. The brake discs and brake linings warm up and
dried out.
Do not use dry cloths, abrasive products or cleaning agents
containing solvents to clean the inside of the windows.
Maintenance and care 313