2010 MERCEDES-BENZ R320 ground clearance

Indicator lamps ; and = are off.
R SPORT (for sporty driving)
Indicator lamp ; comes on.
R COMF (for comfort driving)
Indicator lamp = comes on.
X Start the engine.
X Press ADS switch : repeatedly until the
desired suspension tuning is reached.
The setting remains stored when you turn off
the engine. Vehicle level control
Your vehicle automatically adjusts its ride
height.
The all-around vehicle level control provides
best possible suspension and constant
ground clearance. The vehicle lowers at high
speed automatically in order to increase
driving safety and to reduce fuel
consumption.
Changes to the vehicle level should be made
while the vehicle is moving. The vehicle will
then reach the set level as fast as possible.
When you park the vehicle and the ambient
temperature changes, the vehicle level may
change visibly. When the temperature drops,
the vehicle lowers. When the temperature
rises, the vehicle raises.
The vehicle begins adjusting to the set vehicle
level as soon as the doors or tailgate are
unlocked or opened or closed with the vehicle
unlocked.
For major changes in vehicle level, the engine
must be running. G
Warning!
Make sure no one is near the wheel housing
or under the vehicle when you lower the
vehicle while it is standing still. Limbs could
become wedged into or under the vehicle.
For safety reasons, the vehicle can only be
lowered with all doors and the tailgate closed.
Lowering is interrupted if a door or the tailgate is opened and will continue after the door is
closed again.
! Keep in mind that on rough or uneven
roads, adjusting the vehicle to a lower level
may cause the vehicle underbody to come
in contact with the road and result in
damage to the vehicle underbody. Always
make sure the vehicle has sufficient ground
clearance before adjusting it to a lower
level.
! Before jacking up the vehicle with
equipment that lifts one or more of the
wheels completely off of the ground,
remove the SmartKey from the starter
switch.
i The activation threshold is defined by the
ADS setting (Y page 153). Basic settings
The following vehicle chassis ride heights can
be selected using vehicle level control
switch : in the center console:
Level Driving situation
Raised level For driving on rough roads.
Indicator lamp ; is on.
Highway
level For driving on paved roads
in fair or better condition.
Indicator lamp ; is off.154
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i
The third available level is the highspeed
level that is set automatically.
The following is the approximate change in
ride height for each of the level settings: Level Ride height
Raised level +1.97 in (50 mm)
Highway
level +/-0 in (0 mm)
Highspeed
level -0.78 in (-20 mm)
i
The vehicle is lowered to the highspeed
level automatically if the vehicle speed is
above 70 mph (112 km/h) or if the vehicle
speed stays between 60 mph (96 km/h)
and 70 mph (112 km/h) for
approximately 20 seconds.
i The highspeed level is not available when
towing a trailer. For more information on
towing a trailer, see “Trailer towing”
(Y page 256).
i Obey local speed limits. Use prudent
driving speeds appropriate to prevailing
conditions.
Raised level Only select the raised level if appropriate for
the driving situation encountered. Otherwise
the fuel consumption may increase and/or
the handling characteristics of the vehicle
may be unfavorable.
i
You can select the raised level at speeds
up to 25 mph (40 km/h). At higher speeds,
the message Á Level Selection
Not Permitted appears in the
multifunction display.
X Start the engine. When indicator lamp
; is off:
X Press switch :.
Indicator lamp ; flashes. The vehicle
adjusts to the raised level.
The following message appears in the
multifunction display while the level is
being set: i
The message can be cleared by pressing
the V, U, & or * button on
the multifunction steering wheel.
When the raised level is reached, indicator
lamp ; comes on continuously and the
following message appears in the
multifunction display for approximately
5 seconds: The vehicle level is set to highway level
automatically when the vehicle speed is
exceeding 25 mph (40 km/h).
Highway level
!
Keep in mind that on rough or uneven
roads, adjusting the vehicle to a lower level
may cause the vehicle underbody to come
in contact with the road and result in
damage to the vehicle underbody. Always
make sure the vehicle has sufficient ground
clearance before adjusting it to a lower
level. Driving systems
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Brake fluid level
! If you find that the brake fluid in the brake
fluid reservoir has fallen to the minimum
mark or below, have the brake system
checked for brake pad thickness and leaks
immediately. Contact an authorized
Mercedes-Benz Center immediately. Do
not add brake fluid as this will not solve the
problem. For more information, see
“Practical hints”.
When checking the brake fluid level, the
vehicle must be parked on level ground. The brake fluid level is correct when it is
between lower mark (MIN)
; and upper
mark (MAX) : of the brake fluid reservoir. Tires and wheels
Safety notes
Contact an authorized Mercedes-Benz Center
for information on tested and recommended
rims and tires for summer and winter
operation. They can also offer advice
concerning tire service and purchase. G
Warning!
Replace rims or tires with the same
designation, manufacturer and type as shown
on the original part. For further information
contact an authorized Mercedes-Benz Center.
If incorrectly sized rims and tires are
mounted, the wheel brakes or suspension
components can be damaged. Also, the operating clearance of the wheels and the
tires may no longer be correct.
G
Warning!
Worn, old tires can cause accidents. If the tire
tread is worn to minimum tread depth, or if
the tires have sustained damage, replace
them.
When replacing rims, only use genuine
Mercedes-Benz wheel bolts specified for the
particular rim type. Failure to do so can result
in the bolts loosening and possibly an
accident.
Retreaded tires are not tested or
recommended by Mercedes-Benz, since
previous damage cannot always be
recognized on retreads. The operating safety
of the vehicle cannot be assured when such
tires are used. G
Warning!
If you feel a sudden significant vibration or
ride disturbance, or you suspect that possible
damage to your vehicle has occurred, you
should turn on the hazard warning flashers,
carefully slow down, and drive with caution to
an area which is a safe distance from the road.
Inspect the tires and the vehicle underbody
for possible damage. If the vehicle or tires
appear unsafe, have the vehicle towed to the
nearest authorized Mercedes-Benz Center or
tire dealer for repairs. G
Warning!
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle. You
could lose control of the vehicle. Continued
driving with a flat tire or driving at high speed
with a flat tire will cause excessive heat build-
up and possibly a fire. Important guidelines
R Only use sets of tires and rims of the same
type and make.
R Tires must be of the correct size for the rim. Tires and wheels
227Operation
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Vehicle specification R 350 BlueTEC
(251.125)
The quoted data apply only to the standard
vehicle. Contact an authorized Mercedes-
Benz
Center for the corresponding data of all
special bodies and special equipment. Engine R 350 BlueTEC
Engine, type
642
Mode of operation
Diesel 4-stroke
engine No. of cylinders
6
Bore
3.27 in (83.00 mm)
Stroke
3.62 in (92.00 mm)
Total piston
displacement
182.3 cu in
(2 987 cm 3
) Compression
ratio
16.5:1
Output acc. to
SAE J 1349
210 hp/3
400 rpm
(157 kW/3 400 rpm) Maximum torque
acc.

to SAE J 1349 400 lb-ft/
1 600 - 2 400 rpm
(543 Nm/
1 600 - 2 400 rpm) Maximum engine
speed
4 500 rpm
Firing order
1-4-2-5-3-6
Poly-V-belt
2 035 mm
Electrical system R 350 BlueTEC
Alternator
14 V/220 A
Starter motor
12 V/2.0 kW
Battery
12 V/95 Ah Main dimensions R 350 BlueTEC
Overall vehicle
length
203.7 in (5
173 mm) Overall vehicle
width
20 85.4 in (2
168 mm) Overall vehicle
height
21 65.5 in (1
663 mm) Wheelbase
126.6 in (3
215 mm) Track, front
64.7 in (1
643 mm) Track, rear
64.4 in (1
636 mm) Ground
clearance
21 5.8 in (148 mm)
Turning circle
40.7 ft (12.4 m)
Weights R 350 BlueTEC
Roof load
max. 220 lb (100 kg)
Vehicle specification R 350 (251.165)
The quoted data apply only to the standard
vehicle. Contact an authorized Mercedes-
Benz

Center for the corresponding data of all
special bodies and special equipment. Engine R 350
Engine, type
272
Mode of operation
4-stroke engine,
gasoline injection No. of cylinders
6
Bore
3.66 in (92.90 mm)
Stroke
3.39 in (86.00 mm)
Total piston
displacement
213.5 cu in
(3 498 cm 3
) 20
Exterior rear view mirrors folded out.
21 Data

apply to unladen vehicle with standard equipment. Data may vary in vehicles equipped with AIRMATIC
depending on the selected damping settings and the current vehicle level. 346
Vehicle specification R 350 (251.165)
Technical data
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Engine R 350
Compression
ratio
10.7:1
Output acc. to
SAE J 1349
22 268 hp/6
000 rpm
(200 kW/6 000 rpm) Maximum torque
acc.
to SAE J 1349 258 lb-ft/
2 400 - 5 000 rpm
(350 Nm/
2 400 - 5 000 rpm) Maximum engine
speed
6 500 rpm
Firing order
1-4-3-6-2-5
Poly-V-belt
2 404 mm
Electrical system R 350
Alternator
14 V/180 A
Starter motor
12 V/1.4 kW
Battery
12 V/70 Ah
Spark plugs, type
Bosch Y 7 MPP33
Spark plugs,
electrode gap
0.031 in (0.8 mm)
Spark plugs,
tightening torque
15 - 18 lb-ft
(20 - 25 Nm) Main dimensions R 350
Overall vehicle
length
203.7 in (5
173 mm) Overall vehicle
width
23 85.4 in (2
168 mm) Overall vehicle
height
24 65.5 in (1
663 mm) Wheelbase
126.6 in (3
215 mm) Main dimensions R 350
Track, front
64.7 in (1
643 mm) Track, rear
64.4 in (1
636 mm) Ground
clearance
24 5.8 in (148 mm)
Turning circle
40.7 ft (12.4 m)
Weights R 350
Roof load
max. 220 lb (100 kg)
Rims and tires
Notes
! Only

use tires which have been tested and
approved by Mercedes-Benz. Tires
approved by Mercedes-Benz are developed
to provide best possible performance in
conjunction with the driving safety systems
on your vehicle such as the ABS or the
ESP ®
. Tires specially developed for your
vehicle and tested and approved by
Mercedes-Benz can be identified by finding
the following on the tire’s sidewall:
R MO = Mercedes-Benz Original
equipment tires
R MOE

= Mercedes-Benz Original Extended
(tires with limited run-flat
characteristics) original equipment tires
Using tires other than those approved by
Mercedes-Benz may result in damage that
is not covered by the Mercedes-Benz
Limited Warranty.
For information on driving with MOExtended
tires, see the “Practical hints” section
(Y page 330).
22 Premium fuel required. Performance may vary with fuel octane rating.
23 Exterior rear view mirrors folded out.
24 Data

apply to unladen vehicle with standard equipment. Data may vary in vehicles equipped with AIRMATIC
depending on the selected damping settings and the current vehicle level. Rims and tires
347
Technical data
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