G
Warning
Never switch off ASR when you see the
0067 warning lamp
flashing in the instrument
cluster. In this case proceed as follows:
R when driving off, apply as little throttle as
possible.
R while driving, ease off the accelerator
pedal.
R adapt your speed and driving style to the
prevailing road conditions.
Failure to observe these guidelines could
cause the vehicle to skid. ESP ®
cannot
prevent accidents resulting from excessive
speed.
If, taking tires, cargo load and gradient into
consideration, the surface driven on still
provides insufficient traction, you may
experience difficulties in pulling away despite
ASR.
Vehicles without steering-wheel buttons:
the 003D indicator lamp in the instrument
cluster lights up when you switch on the
ignition. It goes out when the engine is
running.
Activating/deactivating ASR G
Warning
ASR should
not be switched off during normal
driving other than in the circumstances
described below. Deactivating
the system will
reduce vehicle stability in driving maneuvers.
Do not switch off ASR when a spare wheel is
mounted.
ASR is activated automatically when the
engine is running.
It may be best to deactivate ASR briefly in the
following situations:
R when using snow chains
R in deep snow
R on sand or gravel If you deactivate ASR:
R
the engine's torque
is no longer limited and
the drive wheels can spin. The spinning of
the wheels results in a cutting action, which
provides better grip.
R brake intervention will continue to improve
traction where a drive wheel begins to spin,
e.g. if only the side of the road is slippery.
The wheel will be braked to increase
traction under such circumstances.
R active brake intervention by ESP ®
to
increase driving stability remains active. G
Warning
Even with ASR deactivated, ESP ®
remains
active and continues to perform brake
interventions where this is necessary to
improve driving stability. The 0067 warning
lamp flashes.
With ASR deactivated, there is an increased
risk of your vehicle's brake system
overheating and suffering damage due to
prolonged application. A
hot brake system will
also result in increased stopping distance.
Therefore, only deactivate ASR when
absolutely necessary. X
Press button 0046
.
When ASR is
deactivated, the 0067 warning
lamp in the instrument cluster lights up. Driving safety systems
49
Safety Z
Overview
Vehicle type 2500 3500
Rim size (pressed-steel rim) 6.5 J x 16 5.5 J x 16
Rim size (alloy rim) 6.5 J x 16 —
Offset 2.13 in (54 mm) —
Half distance from center to
center — 4.82 in (122.5 mm)
Wheel attachment Wheel bolts Wheel nuts
Tightening torques (pressed-
steel rim) 177 lb-ft (240 Nm) 133 lb-ft (180 Nm)
Tightening torques (alloy rim) 133 lb-ft (180 Nm) —
Summer tires — —
All-weather tires
16 LT 245/75 R16 120/116N LT 215/85 R16 115/112N
LT 215/85 R16 115/112Q
Winter tires
16 LT 245/75 R16 120/116N
M+S 004D LT 215/85 R16 115/112N
M+S 004D
Tire pressure
Take note of the information on tire pressure
in the "Wheels and tires" section
(Y page 255).
G
Warning
Underinflated tires:
R jeopardize driving safety
R damage or destroy the tires
R lead to overheating of tires, even to the
point of catching fire
You could thereby lose control of the vehicle
and injure yourself and others.
For this reason, check the tire pressure
regularly before starting
a journey and correct
it if necessary.
Correct the tire pressure before loading. If the
vehicle is loaded, check the tire pressure, and
correct it if necessary. While driving, dependent on driving speeds
and
load, the
tire temperature and with it, the
tire pressure rise.
You should thus only correct tire pressures
when the tires are cold. If the tires are warm,
you may only correct tire pressures when:
R taking the respective tire temperatures into
consideration with the vehicle laden, the
values apparent from the tire pressure
table are not exceeded.
R taking the respective tire temperatures into
consideration with the vehicle unladen, the
values apparent from the tire pressure
table are not met.
The tires are considered cold if the vehicle has
been parked for at least 3 hours or been
driven less than 1 mile (1.6 km) with an
outside temperature of about 68 ‡ (20 †).
i The tire pressure changes by
approximately 10 kPa (0.1 bar/1.5 psi) per
16 Radial tires. Operating data
281
Technical data Z
