Page 407 of 666

STARTING AND DRIVING
}}
405
Location of the backup reader in the tunnel console.
If the Vehicle key not found message is shown
in the instrument panel at start, place the remote key at the backup reader and then make a newstart attempt.
NOTE
When the remote key is placed in the backup reader, make sure that no other vehicle keys,metal objects or electronic devices (e.g. cellu-lar phones, tablets, laptops or chargers) are inthe backup reader. Multiple vehicle keys closeto each other in the backup reader can dis-rupt their functionality.
CAUTION
If the engine has not responded after 3 attempts – wait for 3 minutes before startinga new attempt. Starting capability increases ifthe starter battery is given time to recover.
WARNING
Never remove the remote control key from
the vehicle while driving or the vehicle is being towed.
WARNING
• Always remove the remote key from the passenger compartment when you leavethe vehicle and make sure the ignition is in mode
0.
• Always put the gear selector in
P and
apply the parking brake before leaving the vehicle. Never leave the vehicle unsu-pervised while the engine is running.
• Always open the garage door fully andmake sure that ventilation is very goodbefore starting the engine in a garage.The exhaust fumes produced by the vehi-cle contain carbon monoxide, which isinvisible and odorless but very toxic.
WARNING
Always take along the remote control key when leaving the vehicle and make sure thatthe vehicle electrical system is in ignition mode
0 – especially if there are children in
the vehicle.
NOTE
With a cold start, idling speed may be consid- erably higher than normal for certain enginetypes. This is done to get the emissions sys-tem up to normal operating temperature asquickly as possible, which minimizes exhaustemissions and protects the environment.
CAUTION
• When starting in cold weather, the auto- matic transmission may shift up at slightlyhigher engine speeds than normal untilthe automatic transmission fluid reachesnormal operating temperature.
• Do not race a cold engine immediatelyafter starting. This could prevent fluidsfrom properly lubricating vital compo-nents in the engine before it has reachedthe proper operating temperature.
• The engine should be idling when thegear selector is moved. Never accelerateuntil the gear is fully engaged. Accelerat-ing rapidly before a gear is properlyengaged could lead to harder wear ofcomponents.
• To help prevent the transmission oil from overheating, select
P or N when idling at
a standstill for prolonged periods of time.
Page 592 of 666

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MAINTENANCE AND SERVICE
590
NOTE
If the conditions for measuring oil level are not properly fulfilled (time after engine shut-down, vehicle inclination, ambient tempera- ture, etc.) the message
No value availablewill be shown in the center display. This does not mean that anything is wrong in the vehi-
cle systems.
Related information
• Engine oil (p. 587)
• Engine oil specifications (p. 644)
• Ignition modes (p. 407)
• Vehicle status (p. 580)
Refilling coolant
Coolant helps keep the combustion engine at the right operating temperature. The heat trans-ferred from the engine to the coolant can beused to warm the passenger compartment.
When refilling coolant, follow the instructions on the package. Never fill the cooling system withonly water. The risk of freezing is increased withtoo low or too high amounts of coolant. If there is coolant under the vehicle, smoke from the cooling system, or if more than 2 liters (about2 quarts) of coolant has been added to the sys-tem, there could be something wrong with thecooling system and starting the vehicle coulddamage the engine. Call a tow truck and do notattempt to start the engine.
WARNING
The coolant may be very hot. Never unscrew the cap when the coolant is hot. If coolantmust be filled, unscrew the expansion tankcap slowly to relieve overpressure.
Coolant expansion tank.
Page 655 of 666

INDEX
653
filter 587
grade and volume 644
Engine shutdown 406
Engine specifications 643Engine temperature high 446
Environment 27Error messages Adaptive Cruise Control 307
see Messages and symbols 307, 322
Error messages in BLIS 350 Ethanol content max. 10% by volume 442
Exterior dimensions 639
F
Federal Clean Air Act 576
Ferry transport 432
Flat tire 550
Flooded road 441
Fluids, volumes 632, 646
Fluids and oils 645, 646 Fog lights front 161
rear 162
Four-C 432 Front seatblower 228
climate 217
heating 219, 220
temperature 230
ventilation 221
Front seat manual 188
Front seats, power 189 adjusting passenger seat from driver's
seat 195
adjusting seat 189
Lumbar support 194
massage 192, 193
memory function 190, 191
multifunction control 192, 193, 194
Side bolsters 194
FSC, environmental labeling 23
Fuel 442 Travel Link service 483
Fuel filling 442
Fuel gauge 89
Fuel requirements 442, 443 Fuel tank volume 646
Fuse box 603Fuses below the glove compartment 608
general 603
in engine compartment 605
in the cargo compartment 611
replacing 604
G
Gasoline grade 442 Gaugefuel gauge 89
Gear indicator 422Gear selector positions automatic transmission 418
Glass laminated/reinforced 170
Glove compartment 563 Gracenote ®
489
Grocery bag holders 566
Gross vehicle weight 641
GSI - Gear shift indicator 422
Guide lines for Park Assist Camera 386
Page 658 of 666

INDEX
656Lighting, replacing bulbs 591
daytime running lights/front parking
lights 596
front turn signals 597
high beams 595
low beams 595
remove plastic cover 593
removing rectangular cover 593
Limp home 417 Load anchoring eyelets cargo compartment 567
Load anchoring hooks 566
Load carriers 566
Load index 532Loading general 564
load anchoring eyelets 567
long load 565
Lock indication 236 setting 237
Locking/unlocking Tailgate 241, 254
Locking wheel bolts 543 Locks Locking 239
unlocking 239
Low battery charge level
start battery 447
Low beams 157
Lower the rear end 565
Low oil level 588
Low-speed driving 435 activate with function button 436
M
Maintenance 576
corrosion protection 626
Max. axle weight 641
Max. roof load 641
Media player 485, 486, 487 compatible file formats 514, 515
voice control 150
Messages and symbols Adaptive Cruise Control 307
Collision warner with auto-brake 344
Messages in BLIS 350
Messages in display 106, 142 handling 107, 143
saved 109, 144
Mileage 89
Misting condensation in headlights 620, 623
Mood lighting 166, 167
N
Net cargo compartment 571
O
Occupant safety 43
Occupant weight sensor 56
Octane rating 443
Oil, see also Engine oil 644
On-board diagnostics 576
On-board Diagnostic socket 36
Option/accessory 21
Outside temperature gauge 94
Overheating 446, 449
Owner's information 16
OWNER'S MANUAL 21
environmental labeling 23
in cellular phone 20
in the center display 17, 18