Fog lamps
Switching on/off .............................. 94
Folding seat ......................................... 85
Folding table ...................................... 236
In the twin co-driver's sea t............ 236
Frequencies
Mobile phone ................................. 318
Two-way radio ................................ 318
Front fog lamps
Switching on/off .............................. 94
Front interior light
Replacing bulbs ............................. 106
Front windshield
see Windshield
Fuel
Additives (diesel )........................... 323
Consumption information ..............323
Consumption statistics ..................197
Diesel at very low outside temper-
atures ............................................ 323
Display message ............................ 215
Driving tips .................................... 154
Fuel gauge ..................................... 183
Important safety notes ..................321
Problem (malfunction) ...................149
Quality (diesel )............................... 322
Refueling ........................................ 148
Showing the range (on-board
computer with steering wheel but-
tons) .............................................. 197
Showing the range (vehicles with
steering wheel buttons) .................197
Tank content/reserve fuel .............322
Fuel filter with water separator
draining ......................................... 257
Indicator lamp ................................ 229
Fuel gauge ......................................... 183
Fuel tank Problem (malfunction) ...................149
Fuel tank content
Reserve, display message ..............215
Fuses .................................................. 283 G
Gasoline Reserve fuel warning lamp .............227
General driving tips
Driving short distances ..................155
Genuine parts .................................... 318
Glove box ........................................... 232
GTW (Gross Trailer Weight) (defini-
tion) .................................................... 305
Guarantee ............................................ 23 H
Hazard warning lamps ........................96
Headlamps Adding fluid to cleaning system .....257
Cleaning system (function) ..............96
Fogging up ....................................... 98
see Automatic headlamp mode
Headliner (cleaning instructions) ....273
Head restraints Adjusting ......................................... 86
Adjusting (rear) ................................ 86
Heating
see Climate control
Highbeam Assist
Function/notes ................................ 97
Switching Highbeam Assist on/
off .................................................. 194
High-beam headlamps
Highbeam Assist .............................. 97
Replacing bulbs ............................. 101
Switching on/off .............................. 95
Hood
Closing .......................................... .251
Display message ............................ 220
Indicator lamp ................................ 230
Opening ......................................... 250
Hydroplaning ..................................... 157 I
Immobilizer .......................................... 62
Indicator lamp see Warning and indicator lamps
Indicators
see Turn signals
Insect protection on the radiator ......28 Index
11
Disconnecting/connecting the
starter battery
Important safety notes G
WARNING
During the charging process, a battery produ-
ces hydrogen gas. If a short circuit occurs or
sparks are created, the hydrogen gas can
ignite. There is a risk of an explosion.
R Make sure that the positive terminal of a
connected battery does not come into con-
tact with vehicle parts.
R Never place metal objects or tools on a bat-
tery.
R It is important that you observe the descri-
bed order of the battery terminals when
connecting and disconnecting a battery.
R When jump-starting, make sure that the
battery poles with identical polarity are
connected.
R It is particularly important to observe the
described order when connecting and dis-
connecting the jumper cables.
R Never connect or disconnect the battery
terminals while the engine is running.
Disconnecting the starter battery !
Switch off the engine and remove the key
from the ignition lock before you loosen or
disconnect the terminal clamps. You may
otherwise destroy electronic components
such as the alternator.
Always disconnect the starter battery in the
battery case in the driver's footwell first.
! Always disconnect the battery in
the order described below. Never swap the
terminal clamps. You may otherwise dam-
age the vehicle electronics. Battery cover in the driver's footwell
X Switch off all electrical consumers.
X Switch off the engine and remove the key
from the ignition lock.
X Remove the floor covering in the driver's
footwell ( Ypage 261).
X Loosen screws 0044and slide battery
cover 0043in the direction of the arrow.
The screws must protrude beyond the
larger recesses.
X Remove battery cover 0043upwards. Starter battery in the driver's footwell
X First loosen and remove the negative ter-
minal clamp so that it is no longer in contact
with the terminal.
X Remove the cover from the positive termi-
nal.
X Loosen the positive terminal clamp and fold
it up to the side together with the pre-fuse
box. 262
BatteryMaintenance and care
Reconnecting the starter battery
!
Always connect the battery in the order
described below. Never swap the terminal
clamps. You may otherwise damage the
vehicle electronics.
X Fold the positive terminal clamp with the
pre-fuse box down to the terminal.
X Connect the positive terminal clamp.
X Attach the cover to the positive terminal.
X Connect the negative terminal clamp.
X Position battery cover 0043so that
screws 0044are positioned over the large
recesses.
X Slide battery cover 0043in the direction of
travel into the smaller recesses.
X Tighten screws 0044.
X Install the floor covering in the driver's foot-
well (Y page 261).
Carry out the following work after connecting
the battery:
X Reset the side windows (Y page 79).Removing/installing the starter bat-
tery
Removing the starter battery X
Disconnect the battery ( Ypage 262).
X Pull breather hose with connector
bracket 0044from connection 0043on the
degassing cover. X
Loosen the bolts holding retainer 0087, which
prevents the battery from moving around. X
Pull retainer 0087upwards.
X Slide the battery from its anchorage in the
direction of travel.
X Fold the bar of the battery upwards and
remove the battery from the battery case.
Installing the starter battery X
Insert the battery into the battery case.
X Fold down the bar of the battery.
X Slide the battery into its anchorage in the
opposite direction to the direction of travel.
X Insert retainer 0087.
X Tighten the bolts on retainer 0087which
holds the battery in place.
X Attach breather hose with connector
bracket 0044to connection 0043of the venti-
lation cover.
X Connect the battery (Y page 262). Battery
263Maintenance and care Z