
Engine electronics check (petrol engine)35 Safety systems35
Tyre pressure
35
Brake linings
36
Fuel reserve
36
Lane departure warning (Lane Assist)
36
Turn signal system
36
Trailer turn signal lights
36
Fog lights
36
Speed regulating system / Speed limiter
37
Brake pedal (automatic transmission)
37
Parking brake - Auto Hold function
37
Main beam
37
Automatic transmission
37
Rear seat belt warning light
37
Alternator
37
Coolant
38
Engine oil pressure too low
38
Engine oil level
38
AdBlue ®
39
Lamp failure
39
Diesel particulate filter (diesel engine)
39
Windscreen washer fluid level
40
Headlamp assistant
40
START-STOP system
40
Low temperature displayed
40
Water in the fuel filter (diesel engine)
40
Automatic Distance Control (ACC)
40
Distance warning (Front Assist)
40
Advance warning / emergency braking (Front Assist)
41
Economy mode
41
Adaptive chassis control (DCC) fault
41
Service
41
The warning lights in the instrument cluster indicate certain functions or
faults.
Some warning lights can be accompanied by acoustic signals and messages in
the display of the instrument cluster.
After switching on the ignition, some warning lights light up briefly as a func-
tion test.
If the tested systems are OK, the corresponding warning lights go out a few
seconds after switching on the ignition or after starting the engine.
Warning lights in the display
Depending on the importance the warning light
(danger) or
(warning) illu-
minate along with some of the warning lights in the list with the warning
lights.
Depending on vehicle specification, some warning lights may be displayed in
colour on the display. For example. the coolant warning lamp may be represen-
ted as follows.
▶ - Segment Display / monochromatic (“black and white”) MAXI DOT display
▶ - colour MAXI DOT displayWARNING■
Ignoring illuminated warning lights and related messages or instructions
in the display of the instrument cluster may lead to serious personal injury
or damage to the vehicle.■
If you have to stop for technical reasons, then park the vehicle at a safe
distance from the traffic, switch off the engine and switch on the hazard
warning lights » page 71. Place the warning triangle at the prescribed dis-
tance.
■
The engine compartment of your car is a hazardous area. The following
warning instructions must be followed at all times when working in the en-
gine compartment » page 206, Engine compartment .
Parking brake
Read and observe
on page 32 first.
illuminates - the hand brake light is switched on.
Parking brake error
illumi-
nates
Fault: electric parking brakePARKING BRAKE FAULT
Seek help from a specialist garage.
Parking on a slope that is too steep
illumi-
nates
Parking brake: grad. too steep. Owner's manual!GRADIENT TOO STEEP
32Using the system

Find a parking space on a flat surface or on a slope that is not so steep.
Brake systemRead and observe
on page 32 first.
illuminates – the brake fluid level in the braking system is too low.
Brake fluid: Owner's manual!BRAKE FLUID PLEASE CHECK›
Stop the vehicle, switch off the engine, and check the level of the brake fluid
» page 212 .
WARNING■
If the warning light illuminates simultaneously with warning light
» page 34 , Anti-lock braking system (ABS) , do not continue your
journey! Seek help from a specialist garage.■
A fault to the ABS system or the braking system can increase the vehi-
cle's braking distance – risk of accident!
Seat belt warning light
Read and observe
on page 32 first.
illuminates - the driver or front passenger has not fastened their seat belt.
At a speed of more than approximately 30 km/h the warning light flashes
and an audible warning sounds at a time.
If the seat belt is not fastened by the driver or front passenger during the next
approx. 2 seconds, the warning signal is deactivated and the warning light
lights up permanently.
Automatic Distance Control (ACC)
Read and observe
on page 32 first.
illuminates - ACC deceleration is insufficient.
Apply the brake!›
Apply the brake.
For more information about the ACC system » page 163.
Power steering / steering lock (KESSY system)
Read and observe
on page 32 first.
Fault in the power steering
illuminates – this indicates a complete failure of the power steering and the
steering assist has failed (significantly higher steering forces).
illuminates – this indicates a partial failure of the power steering and the
steering forces can be greater.
Seek help from a specialist garage.
Steering lock defect (KESSY system)
An audible signal sounds as a warning.
flashes
Steering lock faulty. Stop!STOP VEHICLE STEERING FAULTY
Park the vehicle, do not continue to drive
. After switching off the ignition, it
is no longer possible to lock the steering, to activate the electrical components
(e.g. Infotainment ), to switch on the ignition again and to start the engine.
Seek help from a specialist garage.
flashes
Steering lock: Workshop!STEERING WORKSHOP
Seek help from a specialist garage.
Steering column lock not unlocked (System KESSY)
flashes
Move the steering wheel!MOVE STEERING WHEEL
▶ Move the steering wheel slightly back and forth, thereby facilitating unlock-
ing the steering lock.
If the steering does also not unlock then, the help of a specialist garage is re-
quired.
Disconnecting the vehicle battery
If the vehicle's battery has been disconnected and reconnected, the indicator
light comes on after switching on the ignition.
The warning light should go out after driving a short distance.
If, after the motor is restarted and a short drive, the indicator light does not go
out, there is a system error.
33Instruments and warning lights

Seek help from a specialist garage.
Stability control (ESC) / Traction control (TCS)Read and observe
on page 32 first.
flashes – the ESC or TCS is currently active.
ESC or TCS fault
illumi-
nates
Error: stabilisation control (ESC)ESC ERROR
or
illumi-
nates
Error: traction controlASR ERROR
Seek help from a specialist garage.
If the warning light comes on after starting the engine, the TCS may be
switched off for technical reasons. ▶ Switch the ignition off and on again.
If the warning light does not illuminate after you switch the engine back on,
the TCS is fully functional again.
Disconnecting the vehicle battery
If the vehicle's battery has been disconnected and reconnected, the indicator
light comes on after switching on the ignition.
The warning light should go out after driving a short distance.
If, after a short drive, the indicator light does not go out, there is a system er-
ror.
Seek help from a specialist garage.
For more information on the ESC system » page 144 or TCS system
» page 144 .
Traction control (TCS) deactivated
Read and observe
on page 32 first.
illuminates – the TCS system is disabled.
Traction control (ASR) deactivated.ASR OFF Anti-lock braking system (ABS)
Read and observe
on page 32 first.
illuminates – there is an ABS fault.
Error: ABSABS ERROR
The vehicle will only be braked by the normal brake system without the ABS.
Seek help from a specialist garage.
WARNING■ If the warning light illuminates simultaneously with warning light
» page 33 , Brake system , do not continue your journey! Seek help
from a specialist garage.■
A fault to the ABS system or the braking system can increase the vehi-
cle's braking distance – risk of accident!
Rear fog light
Read and observe
on page 32 first.
illuminates – the rear fog light is switched on.
Exhaust emissions control system
Read and observe
on page 32 first.
illuminates – there is a fault in the exhaust emissions control system. The
system makes possible operation emergency mode - there may be a noticea-
ble reduction in engine performance.
Seek help from a specialist garage.
Glow plug system (diesel engine)
Read and observe
on page 32 first.
flashes – there is a fault in the engine management system. The system
makes possible operation emergency mode - there may be a noticeable reduc-
tion in engine performance.
34Using the system

If, after a short drive, the indicator light does not go out, there is a system er-
ror.
Seek help from a specialist garage.
Other incidents
The illumination of the warning light
can have the following reasons.
▶ The vehicle is loaded on one side. Distribute loads as evenly as possible.
▶ The wheels of one axle are loaded more heavily (e.g. when towing a trailer or
when driving uphill or downhill).
▶ Snow chains are mounted.
▶ A wheel has been changed.
CAUTION
Under certain circumstances (e.g. sporty style of driving, wintry or unpaved
roads) the warning light can be delayed or does not light up at all.
Brake linings
Read and observe
on page 32 first.
illuminates - the brake pads are worn.
Check brake pad!BRAKE PADS PLEASE CHECK
Seek help from a specialist garage.
Fuel reserve
Read and observe
on page 32 first.
illuminates – the fuel level in the fuel tank is at the reserve level (approxi-
mately 6 litres).
Please refuel. Range:PLEASE REFUEL RANGE …
An audible signal sounds as a warning.
Note
The text in the display goes out after refuelling and driving a short distance. Lane departure warning (Lane Assist)
Read and observe
on page 32 first.
The warning lights
indicates the state of the Lane Assist system.
More information about the Lane Assist System » page 174.
Turn signal system
Read and observe
on page 32 first.
flashes – the left turn signal is switched on.
flashes – the right turn signal is switched on.
If there is a fault in the turn signal system, the warning light flashes at twice
its normal rate. This does not apply when towing a trailer.
When the hazard warning light system is switched on, this will cause all of the
turn signal lights as well as both warning lights to flash.
Trailer turn signal lights
Read and observe
on page 32 first.
flashes – the trailer turn signal lights are switched on.
If a trailer is hitched and the warning light is not flashing, one of the trailer
turn signal lights has failed.
An example message in the display of the instrument cluster
Trailer: check left turn signal!TRAILER TURN SIG_ CHECK LEFT
Check the trailer bulbs.
Fog lights
Read and observe
on page 32 first.
illuminates – the fog lights are switched on.
36Using the system

Speed regulating system / Speed limiterRead and observe
on page 32 first.
illuminates - the vehicle speed is limited by the speed regulator system
and/or the automatic distance control or by the speed limiter.
flashes – the speed set with the limiter has been exceeded.
Brake pedal (automatic transmission)
Read and observe
on page 32 first.
illuminates – apply the brake.
Parking brake - Auto Hold function
Read and observe
on page 32 first.
illuminates - the Auto Hold function is activated.
For more information about the Auto-Hold Function » page 146.
Main beam
Read and observe
on page 32 first.
illuminates – the main beam or the headlight flasher is switched on.
Automatic transmission
Read and observe
on page 32 first.
Gearbox overheated
The warning light is only shown in the MAXI DOTdisplay.
illumi-
nates
Gearbox overheated. Stop! Owner's manual!STOP VEHICLE GEARBOX OVERHEAT illumi-
nates
Gearbox overheated.GEARBOX OVERHEATED
▶
Do not continue to drive! Stop the vehicle and turn off the engine.
You can continue your journey as soon as the warning light disappears.
If the warning light does not go out, do not continue driving. Seek help from a
specialist garage.
Transmission problem
The warning light
is only shown in the MAXI DOTdisplay. illumi-
nates
Gearbox faulty. Workshop!GEARBOX FAULTY WORKSHOP illumi-
nates
Error: gearbox. Reverse gear not available.GEARBOX ERROR REV_ GEAR NOT AVAIL illumi-
nates
Error: gearboxGEARBOX ERROR
Seek help from a specialist garage.
Rear seat belt warning light
Read and observe
on page 32 first.
illuminates – a rear seat belt is not fastened.
illuminates – a rear seat belt is fastened.
When the seat belt is fastened/unfastened, the particular light lights up briefly
and indicates the current belt status!
Alternator
Read and observe
on page 32 first.
illuminates – the battery is not being charged whilst the engine is running.
Seek help from a specialist garage.
CAUTION
If in addition to the light the light lights up while driving, stop driving -
risk of engine damage! Switch off the engine and seek assistance from a spe-
cialist garage.37Instruments and warning lights

The setting of the heating / ventilation level by pressing the keys and is
not possible .
Rear seats with seat heating
Fig. 88
The seat heating is switched on
at maximum heat
Read and observe and on page 89 first.
The level of the seat heating is indicated by the number of illuminated warning
lights in the switch.
Seat heating operation
›
Press button or
.
The seat heating is switched on at maximum heat » Fig. 88.
With repeated pressing of the switch, the level is down-regulated up to the
switch-off.
The adjustment of the heating power can be locked and unlocked in the Info-
tainment with the function key
» Owner´s Manual Infotainment , chap-
ter Adjustment of the heating and cooling system . In the locked setting the
heating power can only be adjusted down to turn off.
Transporting and practical equipment
Useful equipment
Introduction
This chapter contains information on the following subjects:
Car park ticket holder
91
Storage compartment on the driver's side
91
stowage compartments in the doors
91
Storage compartment in the front centre console
92
Cup holders
92
Waste container
93
Storage compartment under the front arm rest
94
Glasses compartment
95
Storage compartment on the front passenger side
95
Storage compartment under passenger seat
96
Clothes hook
96
Storage pockets on the backs of the front seats
97
Storage pockets on the inner sides of the front seats
97
Storage compartments for umbrella
97
Storage compartment in the rear centre console
98
Storage compartment in the rear armrest
98
Removable through-loading bag
98
AUX and USB inputs
99WARNING■ Do not place anything on the dash panel. These objects might slide or fall
down when driving (when accelerating, cornering or with an incorrect driv-
ing action) and may distract you from concentrating on the traffic – there is
the risk of an accident.■
When driving, ensure that no objects from the centre console or from oth-
er storage compartments can get into the driver's footwell. You would not
be able to brake, operate the clutch pedal or accelerate - danger of causing
an accident!
■
No objects should be placed in the storage compartments nor in the
drinks holders; the vehicle occupants could be endangered if there is sud-
den braking or the vehicle collides with something.
■
Ash, cigarettes, cigars and the like. may only be placed in the ashtray!
90Using the system

Fig. 95
Rear armrest: Open cup holder / cup holder
Read and observe
on page 90 first.
The cup holder
B
is located in the front centre console » Fig. 94.
The cup holder
D
is located in the rear armrest » Fig. 95.
Open / close the cup holders in the centre console
›
Press on the lid edge
A
in the direction of the arrow » Fig. 94.
Closing takes place in reverse order.
Open / close the cup holders in the rear armrest
›
Grasp the lid to the recess
C
» Fig. 95 .
›
Open the cover in the direction of the arrow.
Closing takes place in reverse order.
WARNING■ Do not use any cups or beakers which are made of brittle material (e.g.
glass, porcelain). This could lead to injuries in the event of an accident.■
Never put hot cups in the cup holder. If the vehicle moves, they may spill –
risk of scalding!
■
No objects should be placed in the holders that might endanger the vehi-
cle's occupants if the vehicle brakes suddenly or the vehicle is in collision.
CAUTION
Do not leave open beverage containers in the cup holder during the journey.
There is a risk of spilling e.g. when braking which may cause damage to the
electrical components or seat upholstery.Waste containerFig. 96
Waste container: inserting and moving/opening
Fig. 97
Replace bags
Read and observe
on page 90 first.
The waste container can be inserted into the slot in the door.
Insert waste container
›
Position the waste container at the front edge of the slot.
›
Push the waste container to the back in the direction of the arrow
1
» Fig. 96 .
›
Push the waste container as required in the direction of arrow
2.
Remove the waste container
›
Remove the waste container in the opposite direction to the arrow
1
» Fig. 96.
Open/close waste container
›
Remove the cover in the direction of arrow
3
» Fig. 96 .
93Transporting and practical equipment

Steering lock locking / unlockingRead and observe
and on page 126 first.
The steering lock (steering lock) deters any attempted theft of your vehicle.
Locking
›
Withdraw the ignition key.
›
Turn the steering wheel to the left or right until the steering lock clicks into
place.
Unlocking
›
Insert the key into the ignition lock.
›
Switch on the ignition » page 127.
The steering lock is unlocked.
If the ignition switch cannot be turned on, then turn the steering wheel back and forth slightly and thereby unlock the steering lock.
Turn ignition on / off and start the engine
Fig. 161
Positions of the vehicle key in the ignition lock
Read and observe and on page 126 first.
Positions of the vehicle key in the ignition lock » Fig. 161
Ignition switched off, engine switched off
Ignition switched on
Starting engine
Switching ignition on/off
›
Turn key to position
2
.
The ignition is switched on.
›
Turn key to position
1
.
123The ignition is switched off.
Starting the engine›
The parking brake switch.
›
For vehicles with manual transmission , shift gear stick to neutral, depress
the clutch pedal and hold it there until the engine starts.
›
On vehicles with automatic transmission , place the selector lever in position
P or N and depress the brake pedal until the engine starts.
›
Turn the key into position
3
as far as it will go - the engine's starting proce-
dure will commence (do not touch the accelerator).
›
Release the key, the engine will start automatically.
After letting go, the vehicle key will return to position
2
.
If the engine does not start within 10 seconds, turn the key to position
1
. Re-
peat the start-up process after approx. half a minute.
For vehicles with Diesel engines the glow plug warning light
illuminates
during starting. The engine can be started after the indicator light goes out.
Note
■ The engine running noises may louder at first be louder for a short time after
starting the cold engine. This is quite normal and is not an operating problem.■
You should not switch on any major electrical components during the heat-
ing period otherwise the vehicle battery will be drained unnecessarily.
Stopping the engine
Read and observe
and on page 126 first.
›
Stop the vehicle » page 134, Parking .
›
Turn key to position
1
» Fig. 161 on page 127 .
The engine and the ignition are switched off simultaneously.
For vehicles with automatic transmission, the ignition key can only be removed if the selector lever is in position P .
CAUTION
Do not switch the engine off immediately at the end of your journey after the
engine has been operated over a prolonged period at high loads but leave it to
run at an idling speed for about 1 minute. This prevents any possible accumula-
tion of heat when the engine is switched off. 127Starting-off and Driving