Vehicle battery
Introduction
This chapter contains information on the following subjects:
Opening the cover
201
Checking the battery electrolyte level
201
Charging
202
Replacing
202
Disconnecting and reconnecting
202
Automatic load deactivation
203
The vehicle battery represents a power source for the motor to start and for
the supply of electrical consumers in the car.
Warning symbols on the vehicle battery
SymbolMeaningAlways wear eye protection!Battery acid is severely caustic. Always wear gloves and eye pro-
tection!Keep fire, sparks, open flames and lit cigarettes well clear of the
vehicle battery!When charging the vehicle battery, a highly explosive gas mixture
is produced!Keep children away from the vehicle battery!WARNINGThere is a risk of injuries, poisoning, chemical burns, explosions or fire
when carrying out any work on the battery and on the electrical system.
The general applicable safety rules and the following warnings must be ob-
served without exception.■
Keep the vehicle battery away from people who are not completely inde-
pendent, especially children.
WARNING (Continued)■ Do not tilt the battery otherwise battery electrolyte may flow out of the
battery vent openings. Protect your eyes by safety glasses or a face shield
– risk of blindness!■
Always wear protective gloves, eye and skin protection when handling
the vehicle battery.
■
The battery acid is strongly corrosive and must, therefore, be handled
with the greatest of care.
■
Corrosive fumes in the air irritate the air passages and lead to conjunctivi-
tis and inflammation of the air passages in the lungs.
■
Battery acid corrodes dental enamel and creates deep wounds after con-
tact with the skin which take a long time to heal.
■
If any battery electrolyte comes into contact with your eyes, rinse the rel-
evant eye immediately with clear water for several minutes - consult a doc-
tor immediately!
■
Splashes of acid on your skin or clothes should be neutralised as soon as
possible using soap suds and then rinsed with plenty of water.
■
If you swallow battery acid, seek immediate medical assistance!
WARNING■ The use of open flames and light should be avoided.■Smoking and radio triggering activities should be avoided.■
Never use a damaged vehicle battery – risk of explosion!
■
Never charge a frozen or thawed vehicle battery – risk of explosion and
caustic burns!
■
Replace a frozen vehicle battery.
■
Never jump-start vehicle batteries with an electrolyte level that is too low
– risk of explosion and caustic burns.
CAUTION
■ Improper handling of the vehicle battery may cause damage.■Ensure that battery acid does not come into contact with the bodywork – risk
of damage to the paintwork.■
If the vehicle has not been driven for more than 3 to 4 weeks, the battery will
discharge. Prevent the battery from discharging by disconnecting the battery's
negative terminal
or continuously charging the battery with a very low
charging current.
200General Maintenance
No.Consumer12Radio13Belt tensioner - driver's side14Air blower for air conditioning,heating15Electric steering lock16Signal amplifier for telephone, telephone preinstallation17Instrument cluster18Not assigned19KESSY control unit20Operating lever underneath the steering wheel21Not assigned22Towing hitch - contact in the socket23Light - right24Panorama roof25Control unit for central locking front door right, power windows -
left26Heated front seats27Music amplifier28Towing hitch - left light29CNG relay30Not assigned31Headlight - left32Parking aid (Park Assist)33Airbag switch for hazard warning lights
34
TCS, ESC button, tyre control display, pressure sensor for air-condi-
tioning, reverse light switch, interior mirror with automatic dim-
ming, START-STOP button, telephone preinstallation, control for
heating of rear seats, sensor for air-conditioning, 230 V power
socket, sport-sound generator35Headlight, headlamp beam adjustment, diagnostic connector, cam-
era, radar36Headlight right37Headlight left38Towing hitch - right lightNo.Consumer39Control unit for central locking front door - right, power windows -
front and rear right4012-Volt power socket41Not assigned42Control unit for central locking rear door - left, right, headlight
cleaning system, windscreen wipers43Visor for gas discharge bulbs, interior lighting44Towing hitch - contact in the socket45Control unit for control of seat adjustment46230-Volt power socket47Rear window wiper48Not assigned49Coil on starter relay, clutch pedal switch50Opening the boot lid51Belt tensioner - front passenger side52Not assigned53Relay for rear window heater
Fuses in the engine compartment
Fig. 222
Removing the fuse box cover/fuses
230Do-it-yourself
Index
A
abroad lead-free petrol
189
Abroad Headlights
78
ABS Function
138
Warning light37
ACC149
Control symbols44
Warning light36
Acceptance and recycling of used vehicles180
Accessories177
Adaptive cruise control149
automatic stop-start152
Information messages155
Operation151
Operation Overview152
Radar sensor150
Set/change the desired speed.153
Set time interval level153
special driving conditions154
Start control152
Stop/resume control153
Adaptive headlights (AFS)
74
Adjust Auxiliary heating (auxiliary heating and ventila-tion)
122
Adjusting Belt height
15
Exterior mirrors85
head restraints88
Interior mirror84
seats87
Steering wheel10
the seats electronically87
Adjusting the seats9
Adjusting the seats electronically87
Adjustment Headlight beam
71
Advance warning/emergency brake Warning symbol
45
AFS74
Air-conditioning system Air outlet vents
116
Airbag16
Deactivating21
Deactivating the front passenger airbag21
Deployment16
Front airbag17
Head airbag20
Knee airbag18
Modifications and damage to the airbag system 179
Side airbag
19
Air bag Warning light
38
Airbag system16
Air conditioning116
Air distribution control117
Climatronic119
manual air conditioning119
Air distribution control117
Air outlet vents116
Alarm Switching off
59
Triggering59
Alcantara cleaning
187
Anti-theft alarm system Activating/deactivating
59
Trailer176
Anti-theft wheel bolts217
Antilock Braking System138
Armrest Front
91
Rear91
artificial leather187
Ashtray97
ASR warning light
37
Assistance systems ACC
36
Driving mode160
ESC138
Front Assistant155
High beam assistant75
Lane Assist162
MCB140
TSA140
Assist system ABS
138
Assist systems138
ABS37
Adaptive cruise control149
ASR37
Cruise Control System148
DSR139
EDL139
ESC37
HBA140
HHC140
Park assist144
Parking aid140
ProActive passenger protection161
START-STOP158
TCS139
XDS139
Audio see radio/navigation system
4
Auto-check control47
Automatic driving lamp control73
Automatic gearbox133
Selector lever-emergency unlocking226
Selector lever lock134
Starting-off and driving135
Tiptronic134
Using the selector lever133
260Index
Hydraulic Brake Assist (HBA)140
I
Ice scrapers
183
Ignition lock127
Immobilizer126
Individual settings Locking
57
Unlocking57
Inertia reel15
Information system45
Compass point display52
Door warning47
Eco-tips52
Gear recommendation46
Lap timer51
MAXI DOT display50
Multifunction display47
Operation46
Outside temperature46
Service interval display53
Stop watch51
Instrument cluster30
Auto-check control47
Counter for distance driven33
Display31
Overview31
Revolutions counter31
Speedometer32
Temperature gauge32
Viewing the charge level of the vehicle battery 34
Warning icons
40
Warning lights34
Interior care185
Natural leather186
Interior light Front
78
Interior lights Rear
79
Interior monitor60
ISOFIX25
J
Jack
212
Maintenance184
Jump-starting220
K
KESSY Locking
56
Unlocking56
Key Locking
55
Starting the engine127
Stopping the engine127
Switching off the ignition127
Switching on the ignition127
Unlocking55
Knee airbag18
L
Lamp failure Warning symbol
43
Lamps Warning symbol
43
Lane Assist162
Activating/deactivating164
Information messages164
Operation163
Warning light39
Lap timer51
Leather Natural leather care
186
LEAVING HOME77
Lever Main beam
73
Turn signal73
Levers Windscreen wipers
82
LichtCOMING HOME / LEAVING HOME77
light travel mode
74
Light Cockpit
78
Fog lights with CORNER function76
High beam assistant75
Replacing bulbs231
tourist light74
lighting entry space
80
Lighting Luggage compartment
103
Lights71
Adaptive headlights (AFS)74
Automatic driving lamp control73
Daylight running72
Fog lights76
Hazard warning light system77
Headlight beam range regulation71
Headlight flasher73
Low beam71
Main beam73
Parking lights71, 78
Rear fog light76
Switching on and off71
Turn signal73
Warning lights34
Locking Individual settings
57
KESSY56
Key55
Remote control55
Locking/unlocking the steering lock Starter button
128
Locking and unlocking the vehicle from the in- side
58
Locking the door without a locking cylinder Emergency
226
265Index
lock steering lock / unlockkey126
Long cargo channel94
Low beam71
Low tyre pressure warning See tyre pressure monitoring
167
Luggage compartment103
Compartment with cargo element108
Cover107
Emergency unlocking226
Fastening elements104
Fix floor covering106
Fixing nets105
floor covering on both sides106
foldable hook106
Folding double hooks105
Lighting103
Luggage net106
Net partition112
roll-up cargo cover108
Storage compartments under the floor cover- ing
109
Stowing the roof rack115
Unlocking the tailgate226
Variable loading floor110
Luggage compartment cover107
Luggage compartment lid60
Luggage net106
Luggage storage Multi-function pocket
110
M
Main beam
73
Warning light40
Maintenance see vehicle care
182
Manual air conditioning Air distribution control
117
Operating elements119
Manual gear changing see gear changing132
Manually adjusting seats
87
Manually adjusting seats87
MAXI DOT display50
Lap timer51
Main menu51
Operation46
Stop watch51
MAXI DOT see MAXI DOT display
50
Maximum permissible weights
238
Mechanical windows66
opening and closing67
Media see radio/navigation system
4
Memory48
Memory Function for the seat89
Mirror Exterior mirrors
85
Make-up81
Mirrors Interior mirror
84
MODE button see driving mode selection
160
Modifications177
Modifications and technical alterations Airbags
179
Service178
Spoiler179
Multi-collision brake140
Multi-function pocket110
Multifunction display Functions
47
Information48
Memory48
Operation46
Multimedia holder99
N
N1
110
Nameplate238
Natural gas operation Indicator light
40
Natural gas vehicles See CNG
192
Navigation system4
Net partition112
behind the front seats112
behind the rarer seats112
Removing and refitting the housing113
Nets105
Notes for driving with a repaired tyre220
Notes on using wheels204
O
Oil Information messages
42
See Engine oil196
Oil pressure Information messages
42
Onboard computer see multifunction display
47
Opening and closing sun roof - Version 1
67
sun roof - Version 269
Operate roller blind - Version 1
68
Operating weight239
Operation in winter Diesel fuel
190
Vehicle battery201
Optical Parking Assistant143
Function keys144
Operation143
Orientation lines144
266Index
Original accessories178
Outside temperature46
Overview Engine compartment
194
Warning icons40
Warning lights34
P
Park assist
144
Departing from a parallel parking space147
Finding a parking space145
Information messages147
Parking146
Park Assist automatic emergency braking
147
Operation145
Parking132
Park assist144
Parking aid140
Parking aid140
Automatic system activation when moving for- ward
143
Function141
Road display142
Parking lights71
Park the vehicle see Parking
132
Part replacement177
Passive safety Before setting off
8
Driving safety8
Safety equipment8
Passive Safety8
Payload239
Pedals132
Footmats132
Petrol see fuel
189
Phonebox96
Plastic parts182
Polishing vehicle paint work see vehicle care
182
Positioning the jack
216
Power limit Sun roof - Version 1
67
Sun roof - Version 269
Power outlet 12 V
98
Power steering Warning light
36
Power windows64
Button in the front passenger door65
Button in the rear doors65
Buttons in the driver's door64
Practical equipment Reflective vest
211
Practical features 12-Volt power outlet
98
Storage pockets on the front seats101
Waste container98
Proactive passenger protection Indicator light
38
ProActive passenger protection161
Function162
Puncture repair kit218
R
Radiator fan
195
Radio4
Radio remote control Auxiliary heating
123
Raising the vehicle216
Rear-view mirror Exterior mirrors
85
Fold in passenger mirror85
Synchronous adjustment of the rear-view mir- ror
85
Rear fog light76
Warning light38
Rear mirror83
Interior mirror84
Rear view camera143
Rear window - heater80
Refuelling188
Fuel188
Fuel - natural gas191
Remote control Locking
55
Replacing the battery224
Synchronisation process224
Unlocking55
Remote control key Replacing the battery
224
Removable through-loading bag102
Repairs and technical alterations177
Replace the battery in the auxiliary heating (auxiliary heating) in the remote control
225
Replacing Bulb for the licence plate light
235
Bulbs231
Fuses228
Fuses – engine compartment230
Fuses – LHD228
Fuses – RHD229
Low beam bulb233
Rear window wiper blade227
Vehicle battery202
windscreen wiper blades227
Replenishing Coolant
198
Engine oil197
Windscreen washer fluid195
Retraction and economical driving136
Reversing camera143
Lens care184
Revolutions counter31
267Index