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Technical terms
Overspeed range
Engine speeds within the red marking
on the tachometer dial, see “Tachome-
ter” (
୴ page 133). Avoid this engine
speed range, as it may result in serious
engine damage that is not covered by
the Mercedes-Benz Limited Warranty.
Parktronic (Parking assist)*
System which uses visual and acoustic
signals to assist the driver during park-
ing maneuvers.
Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.
Power train
Collective term designating all compo-
nents used to generate and transmit
motive power to the drive axles, includ-
ing
ț engine
ț clutch/torque converter
ț transmission
ț transfer case
ț drive shaft
ț differential
ț axle shafts/axles
Production options weight
(
୴ page 311)
Program mode selector switch
Used to switch the automatic transmis-
sion between standard operation (S)
and comfort operation (C).
SL 55 AMG with steering wheel gear-
shift control and manual shift program:
In addition to S and C (for regular S or
comfort C operation, see above), you
can use MANUAL for manual shift pro-
gram.
PSI
(P
ounds per square inch)
(
୴ page 312)
Recommended tire inflation pressure
(
୴ page 312)
REST
(Residual Engine Heat Utilization)
Feature that uses the engine heat
stored in the coolant to heat the vehi-
cle interior for a short time after the en-
gine has been turned off.