Problems with the cooling with air dehumidification function
When you press the 
button, the
indicator lamp in the button flashes three
times or remains off. You can no longer switch
on the cooling with air dehumidification
function.
•► Consult a qualified specialist workshop.
See also:
Driving with summer tires
Observe the notes in the "Winter operation"
section. ...
Transfer case
The vehicle has permanent 4-wheel drive
(4MATIC). Power is always transmitted to
both axles.
Performance tests may only be carried
out on a 2-axle dynamometer. The brake
system or transfer ca ...
Cleaning genuine wood and trim
elements
•► Wipe the wooden trim and trim pieces with
a damp, lint-free cloth, e.g. a microfiber
cloth.
•► Heavy soiling: use car care and cleaning
products recommended and approved by
Mer ...