Page 359 of 521

358 OperationWinter drivingBefore the onset of winter, have your 
vehicle winterized at an authorized 
Mercedes-Benz Center. This service 
includes:
Check of anticorrosion and antifreeze 
concentration.
Addition of cleaning concentrate to the 
water of the windshield and headlamp 
cleaning system.
Add MB Concentrate “S” to a premixed 
windshield washer solvent/antifreeze 
which is formulated for temperatures 
below freezing point (
page 490).
Battery test. Battery capacity drops 
with decreasing ambient temperature. 
A well charged battery helps to make 
sure that the engine can be started and 
the electrohydraulic brake system will 
be fully operational, even at low ambi-
ent temperatures.
Tire change.
Winter tires
Always use winter tires at temperatures 
below 45°F (7°C) and whenever wintry 
road conditions prevail. Not all M+S rated 
tires provide special winter performance. 
Make sure the tires you use show the 
mountain/snowflake.marking on the 
tire sidewall. These tires meet specific 
snow traction performance requirements 
of the Rubber Manufacturers Association 
(RMA) and The Rubber Association of Can-
ada (RAC) and have been designed specif-
ically for use in snow conditions. Use of 
winter tires is the only way to achieve the 
maximum effectiveness of the ABS, ESP
® 
and 4MATIC in winter operation.
For safe handling, make sure that all 
mounted winter tires are of the same make 
and have the same tread design.Always observe the speed rating of the 
winter tires installed on your vehicle. If the 
maximum speed for which your tires are 
rated is below the speed rating of your ve-
hicle, you must place a notice to this effect 
where it will be seen by the driver. Such no-
tices are available at your tire dealer or any 
authorized Mercedes-Benz Center.
Warning!
G
Winter tires with a tread depth of less than 1/6in (4 mm) must be replaced. They are no 
longer suitable for winter operation.
Warning!
G
If you use your spare tire when winter tires 
are fitted on the other wheels, be aware that 
the difference in tire characteristics may 
very well impair turning stability and that 
overall driving stability may be reduced. 
Adapt your driving style accordingly. 
     
        
        Page 499 of 521

498 Technical termsTele Aid System
(T
elematic A
larm I
dentification on D
e-
mand)
The Tele Aid system consists of three 
types of response: automatic and man-
ual emergency, roadside assistance 
and information. Tele Aid is initially ac-
tivated by completing a subscriber 
agreement and placing an acquain-
tance call.
The Tele Aid system is operational pro-
vided that the vehicle’s battery is 
charged, properly connected, not dam-
aged and cellular and GPS coverage is 
available.
Telematics*
A combination of the terms “telecom-
munications” and “informatics”.
Tightening torque
Force times lever arm (e.g. a lug 
wrench) with which threaded fasteners 
such as wheel bolts are tightened.TIN
(T
ire I
dentification N
umber)
(
page 355)
Tire load rating
(page 355)
Tire ply composition and material used
(page 355)
Tire speed rating
(page 356)
TPMS
(page 339)
Traction
(page 356)
Tread
(page 356)
Treadwear indicators
(page 356)
Uniform Tire Quality Grading Standards
(page 356)Vehicle capacity weight
(
page 356)
Vehicle level control*
The ground clearance of the vehicle is 
automatically controlled according to a 
selected setting and speed.The driver 
can set the ground clearance manually 
for example on very rough roads.
Vehicles Maintenance System 
(U.S. vehicles)
Maintenance service indicator in the 
multifunction display that informs the 
driver when the next vehicle mainte-
nance service is due. The Vehicle Main-
tenance System in your vehicle tracks 
distance driven and the time elapsed 
since your last maintenance service, 
calculates other maintenance service 
work required, and calls for the next 
maintenance service accordingly.
Vehicle maximum load on the tire
(page 356) 
     
        
        Page 518 of 521

517 Index
Trunk
Cargo area
Closing the lid 121
Fuse box 462
Lamp 149
Lock button, KEYLESS-GO* 117
Message in display 419
Opening 110, 120
Tie-down rings 275
Trunk lid emergency release 127
Unlocking in an emergency 427
Valet locking 128
Turn signal lamps
Cleaning lenses 367
Messages in display 415
Replacing bulbs 437
Turn signals 55
Additional in mirrors 434
Bulbs 434
Cleaning lenses 367
Indicator lamps 25
Turning off engine 62U
Uniform Tire Quality Grading 
Standards 356
Units, Settings
Speedometer 166
Temperature 166
Unleaded gasoline, Premium 488
Uphill driving
Cruise control 244
Upholstery
Cleaning 371
Useful features 276
V
Vacuum line routing diagram label 468
Valet locking 128
Vehicle
Battery 450
Care 364
Control system, settings menu 153
Dimensions 482
Individual settings 163, 165
Locking/unlocking 34, 60, 106
Locking/unlocking in an 
emergency 426, 427
Lowering 447Modifications and alterations, Operat-
ing safety 16
Towing 457
Washing 364
Weights 483
Vehicle capacity weight 356
Vehicle Identification Number see VIN
Vehicle jack 422, 424
Vehicle level control see Airmatic DC (Dual 
Control)*
Vehicle lighting 318
Vehicle loading
Cargo tie-down rings 275
Instructions 274
Load limit 334
Roof rack* 268
Ski sack* 268
Split rear bench seat* 271
Terminology 353
Vehicle maximum load on the tire 356
Vehicle Recovery services, Stolen (Tele 
Aid) 293
Vehicle status message memory 162
Vehicle tool kit 424
Vehicle washing 366
VIN 499