Mercedes-Benz CLK-Class Owner's Manual page 428

Parktronic*
System which makes parking easier by
giving the driver visual and audible sig-
nals.
Partial load mode
Engine operating status in which only
part of the maximum engine output or
maximum torque is used, e.g. in ->over-
run mode.
Program selector switch
In vehicles with ->automatic transmis-
sion*, switch used to shift between
"sport mode" and "comfort mode" or
to select the "manual gearshift pro-
gram"*. This affects the gearshifting
characteristics of the transmission.
PTS*
(->Parktronic system*)
Rain sensor
Automatically switches the windscreen
wipers on in the event of rain.
RDS
(Radio Data System)
Digital data transfer system for UHF ra-
dio stations.
Rearward-facing child seat
Special ->restraint system for children
up to nine months of age or weighing
up to 10 kg. If a rearward-facing child
seat with automatic ->child seat recog-
nition is fitted, the sensor system pre-
vents the front-passenger airbag from
being triggered.
Restraint systems
Seat belts, belt tensioners, belt force
limiters, airbags and child restraint sys-
tems. As independent systems, their
protective functions complement one
another.
Technical terms
Ribbed mats
Floormats with anti-slip rubber surface.
Rim
Part of the ->wheel to which the tyre is
fitted. Term commonly used for both
rim and wheel disc.
Roll-over bars
Occupant protection system consisting
of plastic-coated steel pipes. The roll-
over bars are retracted in the bodywork
under normal driving conditions.
The roll-over bars are raised auto-
matically in critical driving situa-
tions.
You can raise and lower the roll-
over bars manually.
RON
(Research Octane Number)
Indicates the petrol octane number de-
termined by standard methods. RON is
a measure of the ->knock resistance of
the petrol. The RON is approximately
ten points higher than the ->MON.
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