
Fig. 128 In the dash panel: vents
First read and observe the introductory information
and safety warnings The vents should be left open to ensure that the vehicle interior is sufficiently heated, ventilated and cooled.
, the vent is closed. Additional vents can be found in the instrument panel , in the footwells and in the rear area of the vehicle interior.

NOTICE
Information on the air conditioning system
Air recirculation modeWax Underbody Protection -D 316 000 A1
Definition:
Wax Underbody Protection -D 316 000 A1-
Edition 01/2008
Product Description
Wax Underbody Protection -D 316 000 A1- is an exceptional
long-term corrosion protecti ...
Protecting
Caution
Missing protection leads to the electrical system
damage.
Note
All threaded connections must be tightened to the specified
torque.
...
Engine Cooling
Because towing places higher demands on the engine cooling
system, the cooling system is enhanced in vehicles that have
factory-installed trailer hitches, if necessary. This is done by
installing a stronger or a second coolant fan and/or a larger
radiato ...