Mercedes-Benz 2009 SLR McLaren Roadster Automobile User Manual


 
406
Technical terms
Power train
Collective term designating all compo-
nents used to generate and transmit
motive power to the drive axles,
including
ț engine
ț clutch/torque converter
ț transmission
ț transfer case
ț drive shaft
ț differential
ț axle shafts/axles
Production options weight
(
page 287)
Program mode selector switch
Used to switch the automatic trans-
mission between sport operation (S),
comfort operation (C) and manual
operation (MAN).
PSI
(P
ounds per square inch)
(
page 288)
Recommended tire inflation pressure
(
page 288)
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
engine has been turned off.
Rim
(
page 288)
RON
(R
esearch Octane Number)
The Research Octane Number for gaso-
line as determined by a standardized
method. It is an indication of a gaso-
line’s ability to resist undesired detona-
tion (knocking). The average of both
the MON (Motor Octane Number) and
RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.
Electro-hydraulic brake system
Electronically controlled hydraulic
braking system for increased braking
safety and comfort.
Shift lock
When the vehicle is parked, this lock
prevents the gear selector lever from
being inadvertently moved out of park
position P without SmartKey turned
and brake pedal depressed.
Sidewall
(
page 288)
SRS
(S
upplemental Restraint System)
Seat belts, Emergency Tensioning De-
vice (ETD) and air bags. Though inde-
pendent systems, they are closely
interfaced to provide effective occu-
pant protection.