405 Controls in detail
Driving systems
Driving systems
The driving systems of your vehicle are de-
scribed on the following pages:
Cruise control (page 405) and
DISTRONIC Plus*(
page 411), with
which the vehicle can maintain a preset
speed.
ABC (page 429) adjusts the vehicle
suspension characteristics automati-
cally and control the vehicle level.
Parktronic* (page 431) and
Park Assist* (
page 435), which serve
as a parking assistant.
Dynamic Rear View Monitor*
(
page 439) is an electronic and
visual parking aid.
Night View Assist* (page 446) illumi-
nates the road with infrared light in
addition to the normal headlamps.
For information on the ABS, Adaptive
Brake, BAS, BAS Plus*, EBP, ESP
® and
PRE-SAFE® Brake*, see “Driving safety
systems” (
page 64).
Cruise control
The cruise control automatically maintains
the speed you set for your vehicle.
The use of the cruise control is recom-
mended for driving at a constant speed for
extended periods of time.
You can set or resume the cruise control at
any speed over 20 mph (30 km/h).
The cruise control function is operated by
means of the cruise control lever.
Warning!G
The cruise control is a convenience system
designed to assist the driver during vehicle
operation. The driver is and must always
remain responsible for the vehicle’s speed
and for safe brake operation.
Only use the cruise control if the road,
traffic, and weather conditions make it
advisable to travel at a constant speed.
The use of the cruise control can be dan-
gerous on winding roads or in heavy traf-
fic because conditions do not allow safe
driving at a constant speed.
The use of the cruise control can be dan-
gerous on slippery roads. Rapid changes
in tire traction can result in wheel spin
and loss of control.
Deactivate the cruise control when
driving in fog.
The “Resume” function should only be oper-
ated if the driver is fully aware of the previ-
ously set speed and wishes to resume this
particular preset speed.
410 Controls in detail
Driving systems
Adjustment in 5 mph
(Canada: 10 km/h) increments
Briefly press the cruise control lever
down past the resistance point in
direction of arrow2 (
page 406).
Release the cruise control lever.
The vehicle speed decreases in incre-
ments of 5 mph (Canada: 10 km/h).Setting to last stored speed
(“Resume” function)
Briefly pull the cruise control lever in
direction of arrow4 (
page 406).
The cruise control resumes to the last
set speed, or if no speed is stored, it
will set and store the current speed.
Remove your foot from the accelerator
pedal.
The last set speed appears in the multi-
function display for approximately
5 seconds, and the corresponding
speedometer segments from the se-
lected speed to the vehicle maximum
speed are illuminated.
iThe set speed value is decreased in 5 mph
(Canada: 10 km/h) increments each time you
press the cruise control lever down past the re-
sistance point.
iThe new speed is set and the vehicle will de-
celerate. Keep in mind that it may take a brief
moment until the vehicle has reached the set
speed.
Warning!G
The set speed stored in memory should only
be set again if prevailing road conditions
permit. Possible acceleration or decelera-
tion differences arising from returning to the
preset speed could cause an accident
and/or serious injury to you and others.
iThe last stored set speed is deleted when
the engine is turned off.
411 Controls in detail
Driving systems
DISTRONIC Plus*
When activated, the DISTRONIC Plus adap-
tive cruise control system increases the
driving convenience afforded by the cruise
control while traveling on expressways and
other major roadways.
If the DISTRONIC Plus distance sensor
detects a slower moving vehicle direct-
ly ahead, your vehicle speed will be re-
duced so that you follow that vehicle at
your preset following distance.
If there is no vehicle directly ahead of
you, DISTRONIC Plus will function in
the same way as standard cruise con-
trol (
page 405).
DISTRONIC Plus functions within a speed
range of 0 to 120 mph
(Canada: 0 to 200 km/h).When travelling in Canada in a vehicle not
registered in Canada, you must switch off
the radar sensor system* (
page 272).
Canadian law does not permit the use of
the radar sensor system* (
page 272) for
vehicles from outside of Canada. When you
switch off the radar sensor system*, the
following functions are deactivated:
BAS Plus* (page 67)
DISTRONIC Plus
Park Assist* (page 435)
PRE-SAFE® Brake* (page 73)
Warning!G
DISTRONIC Plus is a convenience system.
Its speed adjustment reduction capability is
intended to make the cruise control more ef-
fective and usable when traffic speeds vary.
It is not however, intended to, nor does it, re-
place the need for extreme care. The re-
sponsibility for the vehicle speed and the
distance to the vehicle ahead, including
most importantly brake operation to assure
safe stopping distance, always remains with
the driver.
DISTRONIC Plus cannot take street and traf-
fic conditions into account.
Complex driving situations are not always
fully recognized by DISTRONIC Plus. This
could result in wrong or missing distance
warnings.
413 Controls in detail
Driving systems
Warning!G
The “Resume” function should only be oper-
ated if the driver is fully aware of the previ-
ously set speed and wishes to resume this
particular preset speed.
Warning!G
Close attention to road and traffic condi-
tions is imperative at all times, regardless of
whether or not DISTRONIC Plus is activated.
Use of DISTRONIC Plus can be dangerous
on winding roads as conditions do not allow
safe driving at a steady speed.
DISTRONIC Plus may not react to stationary
objects in the roadway (e.g. a stopped vehi-
cle in a traffic jam or a disabled vehicle).
DISTRONIC Plus will also not respond to on-
coming vehicles.
Switch off DISTRONIC Plus:
when changing from the left to the right
lane if vehicles are moving more slowly
in the left lane
when entering a turn lane or highway off
ramp
in complex driving situations, such as in
highway construction zones
In these situations, DISTRONIC Plus will
continue to maintain the set speed unless
deactivated.
DISTRONIC Plus is designed and intended
only to maintain a set speed and keep a set
distance from moving objects in front of it.
iDo not use DISTRONIC Plus if you are driv-
ing on a road with steep uphill or downhill slopes.
iDue to its radar-emitting nature DISTRONIC
Plus may have an appearance similar to a radar
detector to law enforcement officials. You may
want to refer to this section of your Operator’s
Manual when asked.
iUSA only:
This device has been approved by the FCC as a
“Vehicular Radar System”. The radar sensor is
intended for use in an automotive radar system
only. Removal, tampering, or altering of the de-
vice will void any warranties, and is not permitted
by the FCC. Do not tamper with, alter, or use in
any non-approved way.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
415 Controls in detail
Driving systems
Warning!G
An intermittent warning sounds and the dis-
tance warning lampl in the instrument
cluster is illuminated if the DISTRONIC Plus
system calculates that the distance to the
vehicle ahead and your vehicle’s current
speed indicate that DISTRONIC Plus will not
be capable of slowing the vehicle sufficiently
to maintain the preset following distance,
which creates a danger of a collision.
Immediately brake the vehicle to increase
your distance to the preceding vehicle. The
warning sound is intended as a final caution
that you have not interceded with your own
braking inputs to avoid a potentially danger-
ous situation. Do not wait for the operation
of the warning signal to intercede with your
own braking. This will result in potentially
dangerous emergency braking which will
not always result in an impact being avoid-
ed.
Tailgating increases the risk of an accident.
Warning!G
DISTRONIC Plus brakes your vehicle with a
maximum of 13 ft/s2. This corresponds to
about 40% of the maximum deceleration of
your vehicle.
You must also apply the brakes yourself to
avoid a collision. DISTRONIC Plus brakes
the vehicle in an effort to restore the preset
distance or to maintain the set speed. The
brake pedal is automatically applied as this
happens which results in the brake pedal
moving.
Keep driver’s foot area clear at all times, in-
cluding the area under the brake pedal. Ob-
jects stored in this area may impair pedal
movement which could interfere with the
braking ability of the DISTRONIC Plus
system.
Do not place your foot under the brake pedal
– your foot could become caught.
Warning!G
If you do not receive visual or acoustic warn-
ing signals during a critical traffic situation,
DISTRONIC Plus has either not recognized
the collision risk, has been deactivated, or is
malfunctioning.
Remember, whether or not DISTRONIC Plus
is operating, it is ultimately always the driv-
ers responsibility to apply the brakes in or-
der to control the vehicle and avoid a
collision.
416 Controls in detail
Driving systems
Displaying the distance graphic
In the “Assistance” menu under “Distance
display” you see the current settings for
DISTRONIC Plus. The information shown in
the multifunction display depends on
whether DISTRONIC Plus is activated or
deactivated.
Press ( or & to select the
“Assistance” menu.
Press % or $ to select the
“Distance display” function.
Press #.
The DISTRONIC Plus distance graphic
appears and you will see one of the fol-
lowing displays on the multifunction
display.DISTRONIC Plus activated
When you turn DISTRONIC Plus on, you will
see the set speed in the multifunction dis-
play for about 5 seconds. You then see the
following display in the multifunction dis-
play.
1DISTRONIC Plus activated
2Your vehicle
3Preset distance threshold to the
preceding vehicle
4Preceding vehicle, if detectedDISTRONIC Plus deactivated
If DISTRONIC Plus is deactivated, the stan-
dard display of DISTRONIC Plus appears in
the multifunction display.
1Preceding vehicle, if detected
2Actual distance to the preceding
vehicle
3Preset distance threshold to the
preceding vehicle
4Your vehicle
DISTRONIC Plus lever
The DISTRONIC Plus system is operated by
means of the DISTRONIC Plus lever.
iFor activating or deactivating the
DISTRONIC Plus system, see “Activating
DISTRONIC Plus” (
page 417) or “Deactivating
DISTRONIC Plus” (
page 423).
iThe menu overview can be found on
(
page 258).
423 Controls in detail
Driving systems
Adjustment in 5 mph
(Canada: 10 km/h) increments
Briefly press the DISTRONIC Plus lever
down past the resistance point in
direction of arrow2 (
page 416).
Release the DISTRONIC Plus lever.
The vehicle speed decreases in incre-
ments of 5 mph (Canada: 10 km/h).Setting to last stored speed (“Resume”
function)
Briefly pull the DISTRONIC Plus lever in
direction of arrow4 (
page 416).
The DISTRONIC Plus resumes to the
last set speed, or if no speed is stored,
it will set and store the current speed.
Remove your foot from the accelerator
pedal.Deactivating DISTRONIC Plus
There are several ways to deactivate the
DISTRONIC Plus system:
Briefly tip the DISTRONIC Plus lever in
the direction of arrow3 (
page 416).
or
Step on the brake pedal.
DISTRONIC Plus will be deactivated.
The last speed set will be stored into
memory.
iThe set speed value is decreased in 5 mph
(Canada: 10 km/h) increments each time you
press the DISTRONIC Plus lever down past the
resistance point.
iThe new speed is set and the vehicle will de-
celerate. Keep in mind that it may take a brief
moment until the vehicle has reached the set
speed.
Warning!G
The speed stored in memory should only be
set again if prevailing road conditions per-
mit. Possible acceleration or deceleration
differences arising from returning to preset
speed could cause an accident and/or seri-
ous injury you and others.
iUpon switching off the engine, the last
stored speed is deleted.
iThe last stored set speed is deleted when
the engine is turned off.
552 Operation
Maintenance
To clear the maintenance service
indicator message: Press L
(
page 257).
The maintenance service indicator
message is cleared and the standard
display appears in the multifunction
display (
page 260).Maintenance service term exceeded
If you have exceeded the suggested
maintenance service term, you will see the
following message in the multifunction
display:
“Service A exceeded by XXX miles (km)
Service A exceeded by XX days”
In addition, a signal sounds when the
message appears.
Any authorized Mercedes-Benz Center will
reset the maintenance service indicator
following a completed maintenance
service.
iVehicles equipped with Maintenance
System (U.S. vehicles. Canada vehicles, depend-
ing on vehicle production date):
The Maintenance System in your vehicle tracks
distance driven and the time elapsed since the
last maintenance service and calculates other
maintenance service work required.
iVehicles equipped with FSS PLUS (Flexible
S
ervice System PLUS) only (Canada vehicles, de-
pending on vehicle production date):
FSS PLUS evaluates engine temperature, oil
level, vehicle speed, engine speed, distance
driven and the time elapsed since the last
maintenance service and calculates other
maintenance service work required.
The interval between maintenance services
depends on your driving habits. A gentle driv-
ing style, moderate engine speeds and the
avoidance of short-distance trips will length-
en the interval between services.
iThe maintenance service indicator message
is automatically cleared
after approximately 10 seconds when you
switch on the ignition or when reaching the
service threshold while driving
after approximately 30 seconds, once the
suggested maintenance service term has
passed
You can also clear it yourself.