Blue bar segments symbolize the gained bo‐
nus range in stages.
ECO PRO bonus range An adjusted driving style helps
you extend your driving range.
This may be displayed as the
bonus range in the instrument
cluster.
The bonus range is shown in the range display.
The bonus range is automatically reset every
time the vehicle is refueled.
Efficiency displayDisplay in the instrument clusterDisplay in the instrument cluster with ex‐
panded scope
A mark in the efficiency display informs about
the current driving style.
Mark in the area of arrow 1: display of the en‐
ergy recovered by coasting or when braking.
Mark in the area of arrow 2: display when ac‐
celerating.
ECO PRO tip, driving tip
As soon as one of the conditions for efficient
driving is no longer fulfilled, respective driving
instructions are displayed as a symbol in the
instrument cluster.
The arrow indicates that the driving
style can be adjusted to be more fuel
efficient by backing off the accelerator
for instance.
The ECO PRO tip is not displayed anymore as
soon as the conditions for efficient driving are
fulfilled again.
ECO PRO tip, symbolsSymbolMeasureFor an efficient driving style:
Give less gas, decelerate in advance
or reduce speed to selected ECO
PRO speed.Steptronic transmission: shift from
M/S to D.
Indications on the Control Display
Displaying EfficientDynamics info
The current efficiency of the ECO PRO sys‐
tems can be shown on the Control Display.
1."My Vehicle"2."Technology in action"3. "EfficientDynamics"
The following systems are displayed:
▷Auto Start/Stop function.▷Energy recovery.▷Coasting.Seite 243Saving fuelDriving tips243
Online Edition for Part no. 0140 2 964 330 - VI/15
Indications on the Control Display
In the indicator of the driving style analysis
shown on the Control Display, a note is dis‐
played if a corresponding route section is up‐
coming.
Call up the display of the driving style analysis:
1."My Vehicle"2."Technology in action"3."Driving style analysis"
Using the route-ahead assistant
An upcoming route section is displayed:
1.Back off the accelerator.2.Allow the vehicle to coast until the route
section indicated is reached.3.If necessary, adjust speed by braking.
System limits
The system is not available in the following sit‐
uations:
▷Speed less than 30 mph, approx. 50 km/h.▷Temporary and variable speed limit, e.g.,
for road works.▷Quality of navigation data inadequate.▷Cruise control active.
Coasting
The concept The system helps to conserve fuel.
To do this, under certain conditions the engine
is automatically decoupled from the transmis‐
sion when selector lever position D is set. The
vehicle continues traveling with the engine idling to reduce fuel consumption. Selector
lever position D remains engaged.
This driving condition is referred to as coast‐
ing.
As soon as you step on the brake or accelera‐
tor pedal, the engine is automatically coupled
again.
Information Coasting is a component of the ECO PRO, re‐
fer to page 241, driving mode.
Coasting is automatically activated when ECO
PRO mode is called via the Driving Dynamics
Control.
The function is available in a certain speed
range.
A proactively driving style helps the driver to
use the function as often as possible and sup‐
ports the fuel-conserving effect of coasting.
Safety mode
The function is not available under one of the
following conditions.▷DSC OFF or TRACTION activated.▷Driving in the dynamic limit range and on
steep uphill or downhill grades.▷Battery charge status temporarily too low
or vehicle electrical system drawing exces‐
sive current.
Functional requirements
In ECO PRO mode, this function is available in
a speed range from approximately 30 mph, ap‐
prox. 50 km/h to 100 mph, approx. 160 km/h, if
the following conditions are met:
▷Accelerator pedal and brake pedal are not
operated.▷The selector lever is in selector lever posi‐
tion D.Seite 245Saving fuelDriving tips245
Online Edition for Part no. 0140 2 964 330 - VI/15
▷Engine and transmission are at operating
temperature.
The driving status Coast can be influenced
with the shift paddles.
Activate coasting via the shift paddles:
1.Using the shift paddles + shift to the high‐
est gear.2.Shift paddles + press again to enter coast‐
ing mode.
Deactivate coasting:
Press shift paddles.
Display Display in the instrument cluster The mark in the efficiency dis‐
play below the tachometer is
backlit in blue and is located at
the zero point. The tachometer
approximately indicates idle
speed.
The coasting point indicator is illuminated at
the zero point during coasting.
Display in the instrument cluster with
expanded scope
The mark in the efficiency dis‐
play is backlit in blue and is lo‐
cated at the zero point.
The coasting point indicator is il‐
luminated at the zero point dur‐
ing coasting.
Indications on the Control Display
The Coasting driving condition is displayed in
EfficientDynamics Info while this driving mode
is active.
Color code blue, arrow 1, and symbol, arrow 2:
driving condition Coasting.
Displaying EfficientDynamics info
1."My Vehicle"2."Technology in action"3."EfficientDynamics"
Deactivating the system manually The function can be deactivated individually on
the ECO PRO menu.
The setting is stored for the drive profile cur‐
rently used.
ECO PRO driving style analysis
The concept In this situation the system helps develop an
especially efficient driving style and to con‐
serve fuel.
For this purpose, the driving style is analyzed.
The assessment is done in various categories
and is displayed on the Control Display.
Using this indication, the individual driving
style can be oriented toward conserving fuel.
The current trip is assessed.
The range of the vehicle can be extended by
an efficient driving style.
This gain in range is displayed as a bonus
range in the instrument cluster and on the
Control Display.
Seite 246Driving tipsSaving fuel246
Online Edition for Part no. 0140 2 964 330 - VI/15
Functional requirementThis function is available in ECO PRO mode.
Calling up ECO PRO driving style analysis1."My Vehicle"2."Technology in action"3."Driving style analysis"
Display on the Control Display
The display of the ECO PRO driving style anal‐
ysis consists of a symbolized route and a
lookup table.
The road symbolizes the efficiency of the driv‐
ing style. The more efficient the driving style,
the smoother the depicted route becomes, ar‐
row 1.
The table of values contains stars. The more
efficient the driving style, the more stars are in‐
cluded in the table and the faster the bonus
range increases, arrow 2.
If, on the other hand, the driving style is ineffi‐
cient, a wavy road and a reduced number of
stars is displayed.
To assist with an efficient driving style, ECO
PRO tips are displayed during driving.
Seite 247Saving fuelDriving tips247
Online Edition for Part no. 0140 2 964 330 - VI/15
Tire Identification NumberDOT code: DOT xxxx xxx 0115
xxxx: manufacturer code for the tire brand
xxx: tire size and tire design
0115: tire age
Tires with DOT codes meet the guidelines of
the U.S. Department of Transportation.
Tire age DOT … 0115: the tire was manufactured in the
1st week of 2015.
Recommendation
Regardless of wear and tear, replace tires at
least every 6 years.
Uniform Tire Quality Grading Quality grades can be found where applicable
on the tire sidewall between tread shoulder
and maximum section width.
For example: Treadwear 200; Traction AA;
Temperature A
DOT Quality Grades
Treadwear
Traction AA A B C
Temperature A B C
All passenger car tires must conform to Fed‐
eral Safety Requirements in addition to these
grades.
TreadwearThe treadwear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified gov‐
ernment test course. For example, a tire
graded 150 would wear one and one-half, 1 g,
times as well on the government course as a
tire graded 100. The relative performance of
tires depends upon the actual conditions of
their use, however, and may depart signifi‐
cantly from the norm due to variations in driv‐ing habits, service practices and differences in
road characteristics and climate.
Traction
The traction grades, from highest to lowest,
are AA, A, B, and C.
Those grades represent the tire's ability to
stop on wet pavement as measured under
controlled conditions on specified government
test surfaces of asphalt and concrete. A tire
marked C may have poor traction performance.
The traction grade assigned to this tire is
based on straight-ahead braking traction tests,
and does not include acceleration, cornering,
hydroplaning, or peak traction characteristics.
Temperature
The temperature grades are A, the highest, B, and C, representing the tire's resistance to the
generation of heat and its ability to dissipate
heat when tested under controlled conditions
on a specified indoor laboratory test wheel.
Sustained high temperature can cause the ma‐
terial of the tire to degenerate and reduce tire
life, and excessive temperature can lead to
sudden tire failure. The grade C corresponds
to a level of performance which all passenger
car tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades Band
A represent higher levels of performance on
the laboratory test wheel than the minimum re‐
quired by law.
WARNING
The temperature grade for this tire is es‐
tablished for a tire that is properly inflated and
not overloaded. Excessive speed, underinfla‐
tion, or excessive loading, either separately or
in combination, can cause heat buildup and
possible tire failure.◀
RSC – Run-flat tires Run-flat tires, refer to page 260, are labeled
with a circular symbol containing the letters
RSC marked on the sidewall.Seite 257Wheels and tiresMobility257
Online Edition for Part no. 0140 2 964 330 - VI/15
M+S
Winter and all-season tires with better cold
weather performance than summer tires.
Tire tread Summer tires
Do not drive with a tire tread depth of less than
0.12 in/3 mm.
There is an increased danger of hydroplaning if
the tire tread depth is less than 0.12 in/3 mm.
Winter tires
Do not drive with a tire tread depth of less than
0.16 in/4 mm.
Below a tread depth of 0.16 in/4 mm, tires are
less suitable for winter operation.
Minimum tread depth
Wear indicators are distributed around the
tire's circumference and have the legally re‐
quired minimum height of 0.063 in/1.6 mm.
They are marked on the side of the tire with
TWI, Tread Wear Indicator.
Tire damage
General information
Inspect your tires often for damage, foreign
objects lodged in the tread, and tread wear.
Information
Driving over rough or damaged road surfaces,
as well as debris, curbs and other obstacles
can cause serious damage to wheels, tires and
suspension parts. This is more likely to occur
with low-profile tires, which provide less cush‐
ioning between the wheel and the road. Be
careful to avoid road hazards and reduce your
speed, especially if your vehicle is equipped
with low-profile tires.
Indications of tire damage or other vehicle mal‐
functions:▷Unusual vibrations while driving.▷Unusual handling such as a strong ten‐
dency to pull to the left or right.
Damage can, e. g., be caused by driving over
curbs, road damage, or similar things.
WARNING
Damaged tires can lose tire inflation
pressure, which can lead to loss of vehicle
control. There is risk of an accident. If tire dam‐
age is suspected while driving, immediately re‐
duce speed and stop. Have wheels and tires
checked. For this purpose, drive carefully to
the nearest dealer’s service center or another
qualified service center or repair shop. Have
vehicle towed or transported as needed.◀
WARNING
Damaged tires can lose tire inflation
pressure, which can lead to loss of vehicle
control. There is risk of an accident. Do not re‐
pair damaged tires, but have them replaced.◀
Changing wheels and tires
Mounting Have mounting and wheel balancing carriedout by a dealer’s service center or another
qualified service center or repair shop.
Seite 258MobilityWheels and tires258
Online Edition for Part no. 0140 2 964 330 - VI/15
Snow chains
Fine-link snow chains The manufacturer of your vehicle recommends
use of fine-link snow chains. Certain types of
fine-link snow chains have been tested by the
manufacturer of the vehicle and recommended
as road-safe and suitable.
Information regarding suitable snow chains is
available from a dealer’s service center or an‐
other qualified service center or repair shop.
Use
Use only in pairs on the rear wheels, equipped
with the tires of the following size:▷245/50 R 18.▷245/45 R 19.
Follow the snow chain manufacturer's instruc‐
tions.
Make sure that the snow chains are always
sufficiently tight. Retighten as needed accord‐
ing to the chain manufacturer's instructions.
Do not initialize the Flat Tire Monitor after
mounting snow chains, as doing so may result
in incorrect readings.
Do not initialize the Tire Pressure Monitor after
mounting snow chains, as doing so may result
in incorrect readings.
When driving with snow chains, briefly activate
Dynamic Traction Control if needed.
Maximum speed with snow chains Do not exceed a speed of 30 mph/50 km/hwhen using snow chains.
Rear wheel steering during operation with snow chains
General information
In order to guarantee free running of the
wheels when operating with snow chains, the
rear wheel steering of the integral active steer‐
ing must be switched off when snow chains
are mounted. For this, it is possible to confirm
via iDrive that snow chains are mounted.
Information WARNING
When rear wheel steering is switched on
and snow chains are mounted, there can be
contact between snow chains and the chassis.
There is risk of accidents or risk of property
damage. With mounted snow chains, switch
off the rear wheel steering.◀
Switching off rear wheel steering With the setting that snow chains are
mounted, the rear wheel steering is switched
off.
About iDrive:1."My Vehicle"2."Vehicle settings"3."Tire chains"4."Tire chains installed"
Starting with the permissible maximum speed
with snow chains of 30 mph/50 km/h the rear
wheel steering will be switched on automati‐
cally.
Tire Pressure Monitor TPM
The concept
The system monitors tire inflation pressure in
the four mounted tires. The system warns you
if there is a loss of pressure in one or more
tires. For this purpose, sensors in the tire
valves measure the tire inflation pressure and
tire temperature.
Information
With use of the system observe further infor‐
mation found under Tire inflation pressure, re‐
fer to page 254.
Seite 264MobilityWheels and tires264
Online Edition for Part no. 0140 2 964 330 - VI/15
Functional requirements
The system must have been reset with the
correct tire inflation pressure; otherwise, relia‐
ble signaling of tire inflation pressure loss is
not assured.
Reset the system after each adjustment of the
tire inflation pressure and after every tire or
wheel change.
Always use wheels with TPM electronics to
ensure that the system will operate properly.
Status display
The current status of the Tire Pressure Moni‐
tor TPM can be displayed, e.g., whether or not
the TPM is active.
About iDrive:1."My Vehicle"2."Vehicle status"3. "Tire Pressure Monitor"
The status is displayed.
Status control display Tire and system status are indicated by the
color of the wheels and a text message on the
Control Display.
All wheels green System is active and will issue a warning rela‐
tive to the tire inflation pressures stored during
the last reset.
One to four wheels, yellow
A flat tire or major drop in tire inflation pressure
in the indicated tires.
Wheels, gray
The system cannot detect a flat tire. Reasons
for this may be:
▷The system is being reset.▷Malfunction.Status information
The status control display additionally shows
the current tire inflation pressures and, de‐
pending on the model, tire temperatures. It
shows the actual values read; they may vary depending on driving style or weather condi‐
tions.
Carry out reset Reset the system after each adjustment of the
tire inflation pressure and after every tire or
wheel change.
Via iDrive and in the vehicle:1."My Vehicle"2."Vehicle status"3.Tire Pressure Monitor reset4.Start the engine - do not drive off.5.Reset tire inflation pressure: "Perform
reset".6.Drive away.
The wheels are displayed in gray and the sta‐
tus "Resetting Tire Pressure Monitor…" is dis‐
played.
After driving faster than 19 mph/30 km/h for a
short period, the set tire inflation pressures are
accepted as reference values. The reset is
completed automatically while driving.
After a successfully completed Reset, the
wheels on the Control Display are shown in
green and "Tire Pressure Monitor active. For
recommended pressures, see tire pressure
label." is displayed.
You may interrupt this trip at any time. When
you continue the reset resumes automatically.
Messages
Required tire inflation pressure check
message
A Check Control message is displayed.
Seite 265Wheels and tiresMobility265
Online Edition for Part no. 0140 2 964 330 - VI/15