CoolantVehicle features and optionsThis chapter describes all standard, country-
specific and optional features offered with the
series. It also describes features that are not
necessarily available in your car, e. g., due to
the selected options or country versions. This
also applies to safety-related functions and
systems.
Hints Danger of burns from hot engine
Do not open the cooling system while
the engine is hot; otherwise, esliding coolant
may cause burns.◀
Suitable additives
Only use suitable additives; otherwise,
engine damage may occur. The additives are
harmful to your health.◀
Coolant consists of water and additives.
Not all commercially available additives are
suitable for the vehicle. Information about the
suitable additives are available from the service
center.
Coolant level
General information If there is no Min. and Max. mark in the filler
neck of the coolant reservoir, have the coolant
level checked if needed by your service center
and add coolant as needed.
Depending on the engine installation, the cool‐
ant reservoir is located on the right side or the
left side of the engine compartment.Checking1.Let the engine cool.2.Turn the lid of the coolant reservoir slightly
counterclockwise to allow any excess
pressure to dissipate, then open it.3.Open the coolant reservoir lid.4.The coolant level is correct if it lies be‐
tween the minimum and maximum marks
in the filler neck.Seite 231CoolantMobility231
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Adding1.Let the engine cool.2.Turn the lid of the coolant reservoir slightly
counterclockwise to allow any excess
pressure to dissipate, then open it.3.If the coolant is low, slowly add coolant up
to the specified level; do not overfill.4.Turn the lid until there is an audible click.
The arrows on the coolant reservoir and
the lid must point towards one another.5.Have the cause of the coolant loss elimi‐
nated as soon as possible.
Disposal
Comply with the relevant environmen‐
tal protection regulations when dispos‐
ing of coolant and coolant additives.
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Emergency release, fuel fillerflap 204
Emergency Request 242
Emergency service, refer to Roadside Assistance 243
Emergency start function, en‐ gine start 35
Emergency unlocking, trans‐ mission lock 82
Emergency unlocking, trunk lid 42
Energy Control 93
Energy recovery 94
Engine, automatic reel-off 71
Engine, automatic Start/Stop function 71
Engine compartment 226
Engine compartment, work‐ ing in 226
Engine coolant 231
Engine idling when driving, coasting 199
Engine oil 228
Engine oil, adding 229
Engine oil additives 229
Engine oil change 230
Engine oil filler neck 229
Engine oil temperature 92
Engine oil types, alterna‐ tive 230
Engine oil types, ap‐ proved 230
Engine start during malfunc‐ tion 35
Engine start, jump-start‐ ing 243
Engine start, refer to Starting the engine 70
Engine stop 71
Engine temperature 92
Entering a car wash 248
Equipment, interior 172
Error displays, see Check Control 88
ESP Electronic Stability Pro‐ gram, refer to DSC 135 Exchanging wheels/tires 223
Exhaust system 189
Exterior mirror, automatic dimming feature 63
Exterior mirrors 62
External start 243
External temperature dis‐ play 93
External temperature warn‐ ing 93
Eyes for securing cargo 193
F
Failure message, see Check Control 88
False alarm, refer to Uninten‐ tional alarm 48
Fan, refer to Air flow 166
Filler neck for engine oil 229
Fine wood, care 250
First aid kit 243
Fitting for towing, see tow fit‐ ting 246
Flat tire, changing wheels 240
Flat Tire Monitor FTM 115
Flat tire, Tire Pressure Moni‐ tor TPM 111
Flat tire, warning lamp 112, 115
Flooding 190
Floor carpet, care 251
Floor mats, care 251
Fold down the rear seat back‐ rest, see Though-loading
system 177
Fold-out position, wiper 78
Foot brake 190
Front airbags 108
Front-end collision warning with braking function 120
Front-end collision warning with City Braking func‐
tion 117
Front fog lights 106 Front fog lights, bulb replace‐
ment 238
Front lights 236
front-seat passenger airbags, automatic deactivation 110
Front-seat passenger airbags, indicator lamp 110
FTM Flat Tire Monitor 115
Fuel 206
Fuel consumption, current 93
Fuel consumption, refer to Average fuel consump‐
tion 98
Fuel filler flap 204
Fuel gauge 92
Fuel lid 204
Fuel quality 206
Fuel recommendation 206
Fuel, tank capacity 257
Fuse 241
G
Garage door opener, refer to Universal Integrated Remote
Control 172
Gasoline 206
Gear change, Steptronic transmission 80
Gear shift indicator 95
General driving notes 188
Glare shield 174
Glass sunroof, powered 50
Glove compartment 181
Gross vehicle weight, ap‐ proved 255
H
Handbrake, refer to Parking brake 73
Hand-held transmitter, alter‐ nating code 173
Hazard warning flashers 242
HDC Hill Descent Con‐ trol 137 Seite 261Everything from A to ZReference261
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OOBD Onboard Diagnosis 233
OBD, see OBD Onboard Di‐ agnosis 233
Object detection, see Night Vision 125
Obstacle marking, rearview camera 156
Octane rating, refer to Rec‐ ommended fuel grade 206
Odometer 92
Office, see user's manual for Navigation, Entertainment
and Communication
Oil 228
Oil, adding 229
Oil additives 229
Oil change 230
Oil change interval, service requirements 94
Oil filler neck 229
Oil types, alternative 230
Oil types, approved 230
Old batteries, disposal 241
Onboard monitor, refer to Control Display 18
Onboard vehicle tool kit 235
Opening/closing via door lock 39
Opening and closing 34
Opening and closing, without remote control 39
Opening and closing, with re‐ mote control 37
Opening the trunk lid with no- touch activation 44
Operating concept, iDrive 18
Optional equipment, standard equipment 6
Outside air, refer to Auto‐ matic recirculated-air con‐
trol 167
Overheating of engine, refer to Coolant temperature 92 P
Paint, vehicle 249
Parallel parking assistant 160
Park Distance Control PDC 152
Parked-car ventilation 171
Parked vehicle, condensa‐ tion 191
Parking aid, refer to PDC 152
Parking assistant 160
Parking brake 73
Parking lights 103
Parking with Automatic Hold 74
Particulate filter 189
Passenger side mirror, tilting downward 62
Pathway lines, rearview cam‐ era 156
PDC Park Distance Con‐ trol 152
Pedestrian detection, see Night Vision 125
Pedestrian warning with city braking function 123
Personal Profile 35
Personal Profile, exporting profiles 36
Pinch protection system, glass sunroof 51
Pinch protection system, win‐ dows 49
Plastic, care 250
Power failure 240
Power sunroof, glass 50
Power windows 48
Pressure, tire air pres‐ sure 211
Pressure warning FTM, tires 115
Profile, refer to Personal Pro‐ file 35
Programmable memory but‐ tons, iDrive 23 Protective function, glass
sunroof 51
Protective function, win‐ dows 49
Push-and-turn reel, refer to Controller 18
R Radiator fluid 231
Radio-operated key, refer to Remote control 34
Radio ready state 70
Radio, see user's manual for Navigation, Entertainment
and Communication
Rain sensor 77
Rear automatic climate con‐ trol 169
Rear axle steering 139
Rear lights 238
Rear socket 177
Rearview camera 154
Rearview mirror 62
Rear window defroster 167
Recirculated-air mode 167
Recommended fuel grade 206
Recommended tire brands 223
Refueling 204
Remaining range 93
Remote control/key 34
Remote control, malfunc‐ tion 38
Remote control, univer‐ sal 172
Replacement fuse 241
Replacing parts 235
Replacing wheels/tires 223
Reporting safety defects 9
RES button 146
RES button, see Active Cruise Control, ACC 143
RES button, see Cruise con‐ trol 150 Seite 264ReferenceEverything from A to Z264
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