Trailer towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Trailer towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Removable towing bracket . . . . . . . . . . . . . . . . . . 202
Vehicle maintenance and cleaning . . . . . . . . . 209
General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Care of the vehicle exterior . . . . . . . . . . . . . . . . . . 210
Vehicle interior maintenance . . . . . . . . . . . . . . . . 215
Accessories, replacement of parts and
modifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Accessories and spare parts . . . . . . . . . . . . . . . . 221
Technical modifications . . . . . . . . . . . . . . . . . . . . 221
Mobile phones and two-way radios . . . . . . . . . . . 222
Athermic windscreen* . . . . . . . . . . . . . . . . . . . . . 222
Checking and refilling levels . . . . . . . . . . . . . . . 223
Refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Petrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Washer fluid and windscreen wiper blades . . . . 234
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Vehicle battery . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Wheels and tyres . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
If and when . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
Tools, tyre repair kit and spare wheel . . . . . . . . . 251
Changing a wheel . . . . . . . . . . . . . . . . . . . . . . . . . 253
Tyre repair* (Tyre-Mobility-System) . . . . . . . . . . . 258
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264
Changing bulbs. Halogen headlights . . . . . . . . . 265
Changing bulbs. Bi-Xenon AFS headlights . . . . . 271
Changing tail light bulbs (on side panel) . . . . . . 275
Changing tail light bulbs (on rear lid) . . . . . . . . . 280
Side turn signals . . . . . . . . . . . . . . . . . . . . . . . . . . 283 Luggage compartment lights . . . . . . . . . . . . . . . . 284
Registration light . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Sun visor light . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
Jump-starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
Towing and tow-starting . . . . . . . . . . . . . . . . . . . . 289
Technical Specifications . . . . . . . . . . . 292
Description of specifications . . . . . . . . . . . . . . . 292
Important information . . . . . . . . . . . . . . . . . . . . . 292
Information on fuel consumption . . . . . . . . . . . . 294
Towing a trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
Technical specifications . . . . . . . . . . . . . . . . . . . . 296
Engine specifications . . . . . . . . . . . . . . . . . . . . . . 296
Dimensions and capacities . . . . . . . . . . . . . . . . . 304
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305
4Table of Contents
64Cockpit
CHECK button
Fig. 43 Detailed view of
the instrument panel:
CHECK button
The CHECK
button has the following functions:
Activating the digital clock and the odometer
When the ignition is switched off, the odometer and the digital clock with
date display can be enabled for a few seconds by pressing the CHECK
but-
ton ⇒ Fig. 43.
Starting check procedure (auto-check control)
The auto-check control ⇒ page 76 checks important components and ve-
hicle systems. These background checks are run constantly, as long as the
ignition is switched on.
You can start the “check procedure” manually by pressing the CHECK
button
with the ignition switched on. This function check can be started with the
engine either stationary or running, but not at road speeds above 5 km/h.
Calling up driver messages
If a Priority 1 symbol flashes in the display ⇒ page 76, or if the bulb moni-
tor detects a failure of one of the lights ⇒ page 83, the relevant driver in- formation can be called up again by briefly pressing the
CHECK
button. For
example:
Switch off engine, check oil level
The message will disappear from the display after about 5 seconds.
Setting the speed warning
You can press the CHECK
button to set speed limit warning 1
⇒ page 84,
Setting speed limit warning 1 while the vehicle is moving . Speed limit warn-
ing 2* ⇒ page 85, Setting speed limit warning 2 can only be set when the
ignition is switched off .
68Cockpit
Where a turn signal bulb does not work, either on the trailer or on the tow-
ing vehicle, the turn signal bulb will not flash.
Anti-lock brake system (ABS)
The warning lamp monitors the ABS and the integrated elec-
tronic differential lock (EDL).
The warning lamp lights up for a few seconds when the ignition is switch-
ed on and while the engine is being started. The lamp goes out again after
the system has run through an automatic test sequence.
There is a fault in the ABS if:
● The warning lamp does not light up when the ignition is switched on
● The warning lamp does not go out again after a few seconds
● The warning lamp lights up when the vehicle is moving
The vehicle can still brake in the normal way (except that the ABS control
function is out of action). Please take the vehicle to a specialised workshop
as soon as possible. For further information on the ABS, see ⇒ page 189.
If a malfunction should occur in the ABS, the ESC warning lamp will also
light up.
Entire brake system fault
If the ABS warning lamp lights up together with the brake warning lamp
⇒ page 71 (with the handbrake released), this indicates not only a
fault in the ABS function, but probably also a malfunction in the main brake
system ⇒
.
The symbol will light up on the instrument panel if there if a fault in the
brake system. Please refer to ⇒ page 78. Electronic differential lock (EDL) fault
The EDL works in conjunction with the ABS. The ABS indicator lamp will light
up to indicate an EDL fault. Please take the vehicle to a specialised work-
shop as soon as possible. For further information on the EDL, see
⇒ page 190.
WARNING
● Before opening the bonnet and checking the brake fluid level, ob-
serve the warning information in ⇒ page 227, Work in the engine com-
partment.
● If the brake warning lamp should light up together with the ABS
warning lamp , stop the vehicle immediately and check the brake fluid
level in the reservoir. If the fluid level has dropped below the "MIN" mark
you must not drive on, as there is a risk of accident. Obtain technical as-
sistance.
● If the brake fluid level is correct, the fault in the brake system may
have been caused by a fault in the ABS control function. As a result, the
rear wheels can lock relatively easily when braking. Under certain cir-
cumstances, the rear of the vehicle could suddenly sway from side to
side, with the subsequent danger of skidding. Drive carefully to the near-
est specialised workshop and have the fault repaired.
Seat belt warning lamp*
The warning lamp acts as a reminder to the driver to fasten
the seat belt. After switching on the ignition, the warning lamp will remain lit until the
driver and front passenger (if applicable) have fastened their seat belts.
When the vehicle has reached a certain speed, you will also hear a warning
signal and the warning light will flash.
For further information on the seat belts, see ⇒ page 23.
69
Cockpit
Turn signals and hazard warning lights
Depending on which turn signal is operated, either the left or right turn
signal lamp flashes. Both turn signal lamps will flash when the hazard warn-
ing lights are switched on.
If a turn signal fails, the indicator lamp will start flashing twice as fast as
normal.
This does not apply when towing a trailer. Where a turn signal bulb does not
work, either on the trailer or on the towing vehicle, the turn signal bulb will
not flash. For further information on the turn signals, see ⇒ page 122.
Electronic Stability Control (ESC)* /
There are two control lamps for the electronic stability con-
trol. The lamp provides information concerning the func-
tion and the provides information on the disconnection
status
Both lamps come on together when the ignition is switched on and should
go out after approx. 2 seconds, which is how long the function check lasts.
This programme includes the ABS, EDL and ASR. This also includes the
brake assistance system (BAS), automatic cleaning of the brake discs and
the trailer stability programme (TSP).
The warning lamp has the following functions:
● It flashes whilst driving when the ASR/ESC is activated.
● It will light up continuously if there is a fault in the ESC.
● As the ESC operates in conjunction with the ABS, it will also light up if a
fault should occur in the ABS. If the ESC warning lamp
lights up and stays on after the engine is started,
this may mean that the control system has temporarily switched off the ESC.
In this case the ESC can be reactivated by switching the ignition off and
then on again. If the warning lamp goes out, this means the system is fully
functional.
The lamp provides information about the disconnection status of the
system:
● It stays lit when the ASR is disconnected when pressing the switch.
Traction control system (ASR)* /
The traction control system prevents the driven wheels from
spinning when the vehicle is accelerating
There are two warning lamps for the traction control system: and . Both
lamps come on together when the ignition is switched on and should go out
after approx. 2 seconds, which is how long the function check lasts.
The lamp has the following function:
● It flashes when the ASR is working if the vehicle is moving.
If the system is deactivated or if it has any fault, the warning lamp will re-
main lit. The warning lamp will also light up if a fault should occur in the
ABS because the ASR operates in conjunction with the ABS. For further in-
formation, see ⇒ page 188
The lamp provides information about the disconnection status of the
system:
● It stays lit when the ASR is disconnected when pressing the ASR OFF
switch.
By pressing it again, the ASR function is reactivated and the warning lamp
switched off.
Safety FirstOperating InstructionsPractical TipsTechnical Specifications
72Cockpit
Driver information system
General notes
The driver information system in the instrument panel
shows the status of various on-board systems at a glance.
Fig. 47 Cockpit: Digital
instrument panel display
The display for the driver information system is in the centre of the instru-
ment panel.
The system runs a check on certain components and functions when the ig-
nition is switched on and while the vehicle is moving. The DIS system gives
an audible warning if a fault should occur or if servicing is required, and a
red or yellow warning symbol (in some cases with a corresponding driver
message) appears in the instrument panel display.
The driver is informed on the audio system.
The driver information system includes the following functions:
CD player, radio and telephone display*⇒ page 73Outside temperature display⇒ page 73Gear indicator*⇒ page 74Selector lever positions for the 7-speed automatic
gearbox*⇒ page 185
Selector lever positions with multitronic ®
*⇒ page 182Distance to empty⇒ page 74Door and rear lid warning⇒ page 75Service indicator⇒ page 75auto-check control⇒ page 76Driving tips⇒ page 77Handbrake warning⇒ page 77Bulb monitor*⇒ page 83Onboard computer*⇒ page 86Tyre pressure monitoring*⇒ page 90Navigation information*Separate Instruc-
tion Manual
Note
● If a fault should occur, the display will show a red or yellow warning
symbol. A red warning symbol indicates a serious malfunction ⇒ page 78.
A yellow warning symbol indicates a less serious malfunction ⇒ page 80.
80Cockpit
Engine oil level correct
If the symbol flashes and the engine oil level is correct, obtain profes-
sional assistance. Do not drive on! Do not continue to run the engine, even
at idle speed .
Note
The oil pressure warning lamp is not an indicator for the oil level. The oil
level should therefore be checked regularly, preferably every time you fill
the tank.
Yellow symbols
A yellow symbol indicates a warning.
Fig. 55 Display: Fuel lev-
el low
Brake light failure warning light⇒ page 81
Fuel level low⇒ page 81
Engine speed governing⇒ page 81
Check engine oil level⇒ page 81
Engine oil sensor faulty*⇒ page 81
Diesel particulate filter* obstructed⇒ page 81
Photosensor/rain sensor faulty⇒ page 82
Brake pad worn⇒ page 82
Speed warning 1⇒ page 82
Dynamic headlight range control* faul-
ty⇒ page 82
Adaptive headlights* faulty⇒ page 82
Washer fluid level low*⇒ page 82
Speed warning 2*⇒ page 82
Battery voltage too high or too low*⇒ page 82
Bulb monitor*⇒ page 83
Tyre pressure monitoring system*
Loss of pressure⇒ page 90
Tyre pressure monitoring system*
System not available⇒ page 67
Start-Stop system fault*⇒ page 171
83
Cockpit
Bulb monitor
The bulb monitor checks whether the lights on the vehicle
are working.
If a defective bulb is detected, or if one of the lights has failed for any rea-
son, the bulb monitor symbol will appear in the display together with an
additional message (which goes out after 5 seconds). For instance, if the
rear left turn signal is not working, the display in the instrument panel will
show the following message:
Left rear turn signal
The message disappears after 5 seconds. Press the CHECK button briefly if
you wish to call up the message again.
If the display indicates that one of the lights is not working, this can have a
number of causes:
● Bulb failure ⇒ page 264.
● A blown fuse ⇒ page 262, Changing fuses.
● Faulty electrical wiring.
It is not necessary to have lamps replaced in a specialised workshop, how-
ever the use of Xenon lamps is recommended.
LED lamps
If any of the LED (Light Emitting Diode) functions fail, the complete lamp
should be replaced.
The failure of the lamp is only shown when the LED function goes out com-
pletely. Sometimes, a LED will stop working, without displaying the warning
as the function continues to operate.WARNING
● Bulbs are highly sensitive to pressure. The glass can break when you
touch the bulb, causing injury.
● The high voltage element of gas discharge bulbs* (xenon light) must
be handled correctly. Otherwise, there is a risk of death.
Speed warning* Introduction
The speed warning function can help prevent you exceeding
a particular pre-set maximum speed.
Fig. 56 Display: Speed
warning function
The speed warning function will warn the driver if a pre-set maximum speed
is exceeded. The system gives a warning buzzer signal if the set speed is
Safety FirstOperating InstructionsPractical TipsTechnical Specifications
239
Checking and refilling levels
A highly explosive mixture of gases is released when the bat-
tery is under charge.
Keep children away from acid and batteries!
WARNING
Always be aware of the danger of injury and chemical burns as well as
the risk of accident or fire when working on the battery and the electrical
system:
● Wear eye protection. Protect your eyes, skin and clothing from acid
and particles containing lead.
● Battery acid is very corrosive and caustic. Wear protective gloves and
eye protection. Do not tilt the batteries. This could spill acid through the
vents. Rinse battery acid from eyes immediately for several minutes with
clear water. Then seek medical care immediately. Neutralise any acid
splashes on the skin or clothing with a soapy solution, and rinse off with
plenty of water. If acid is swallowed by mistake, consult a doctor immedi-
ately.
● Fires, sparks, open flames and smoking are prohibited. When han-
dling cables and electrical equipment, avoid causing sparks and electro-
static charge. Never short the battery terminals. High-energy sparks can
cause injury.
● A highly explosive mixture of gases is released when the battery is
under charge. The batteries should be charged in a well-ventilated room
only.
● Keep children away from acid and batteries.
● Before working on the electrical system, you must switch off the en-
gine, the ignition and all consumers. The negative cable on the battery
must be disconnected. When a light bulb is changed, you need only
switch off the light.
WARNING (Continued)
● Deactivate the anti-theft alarm by unlocking the vehicle before you
disconnect the battery! The alarm will otherwise be triggered.
● When disconnecting the battery from the vehicle electrical system,
disconnect first the negative cable and then the positive cable.
● Switch off all electrical consumers before reconnecting the battery.
Reconnect first the positive cable and then the negative cable. Never re-
verse the polarity of the connections. This could cause an electrical fire.
● Never charge a frozen battery, or one which has thawed. This could
result in explosions and chemical burns. Always replace a battery which
has frozen. A flat battery can also freeze at temperatures close to 0 °C.
● Ensure that the vent hose is always connected to the battery.
● Never use a defective battery. This could cause an explosion. Replace
a damaged battery immediately.
CAUTION
● Never disconnect the battery if the ignition is switched on or if the en-
gine is running. This could damage the electrical system or electronic com-
ponents.
● Do not expose the battery to direct sunlight over a long period of time,
as the intense ultraviolet radiation can damage the battery housing.
● If the vehicle is left standing in cold conditions for a long period, protect
the battery from freezing. If it freezes it will be damaged.
Charging the battery
A fully-charged battery is important for reliable starting. – Note the warnings ⇒
in Important safety warnings for han-
dling a vehicle battery on page 239 and ⇒ .
Safety FirstOperating InstructionsPractical TipsTechnical Specifications