Radiator
Vehicles with a diesel engine: do not cover the radiator, for example with a winter front or bug cover. Otherwise, the readings of the on-board-diagnostic system may be inaccurate. Some of these readings are required by law and must be accurate at all times.
See also:
Switching off the manual drive program
Press the program selector button
repeatedly until C or S
appears in the multifunction display. ...
Tread
The part of the tire that comes into contact
with the road. ...
Treadwear indicators
Narrow bars (tread wear bars) that are
distributed over the tire tread. If the tire tread
is level with the bars, the wear limit of 1/16 in
(1.6 mm) has been reached. ...