tire pressure reset MERCEDES-BENZ GL-Class 2015 X166 Owner's Manual

Replacin
g ...................................... .429
Service life ..................................... 408
Sidewall (definition) ....................... 428
Speed rating (definition) ................ 427
Storing .......................................... .430
Structure and characteristics
(definition) ..................................... 426
Temperature .................................. 422
TIN (Tire Identification Number)
(definition) ..................................... 428
Tire bead (definition) ..................... .428
Tire pressure (definition) ................ 428
Tire pressures (recommended) ...... 427
Tire size (data) ............................... 434
Tire size designation, load-bearing capacity, speed rating .................... 423
Tire tread ....................................... 407
Tire tread (definition) ..................... 428
Total load limit (definition) ............. 429
Traction ......................................... 422
Traction (definition) ....................... 428
Tread wea r..................................... 422
TWR (permissible trailer drawbar
noseweight) (definition) ................. 428
Uniform Tire Quality Grading
Standards ...................................... 421
Uniform Tire Quality Grading
Standards (definition) .................... 427
Wear indicator (definition) ............. 429
Wheel and tire combination ........... 436
Wheel rim (definition) .................... 427
see Flat tire
Tool
see Vehicle tool kit
Top Tether ............................................ 64
Towing a trailer Active Parking Assist ..................... 232
Axle load, permissibl e.................... 459
Cleaning the trailer tow hitch ......... 382
Coupling up a traile r...................... 267
Decoupling a traile r....................... 269
Driving tips .................................... 265
ESP ®
(Electronic Stability Pro-
gram) ............................................... 75
Important safety notes .................. 264
Installing the ball coupling ............. 266
Mounting dimensions .................... 458 Power supply ................................. 271
Pulling away with a traile
r.............. 171
Removing the ball coupling ............ 270
Storing the ball coupling ................ 270
Trailer drive progra m..................... 257
Trailer load s................................... 459
Towing away
Important safety guidelines ........... 399
Installing the towing eye ................ 400
Removing the towing eye ............... 401
With both axles on the ground ....... 401
With the rear axle raised ................ 401
Tow-starting
Emergency engine starting ............ 402
Important safety notes .................. 399
Trailer coupling
see Towing a trailer
Trailer loads and drawbar nose-
weights ............................................... 270
Trailer towing Active Blind Spot Assist ................. 252
Active Lane Keeping Assist ............ 255
Blind Spot Assist ............................ 247
PARKTRONIC ................................. 227
Permissible trailer loads and
drawbar noseweights ..................... 270
Transfer case ..................................... 185
Transmission see Automatic transmission
Transmission position display ......... 176
Transmission position display
(DIRECT SELECT lever) ...................... 176
Transporting the vehicle .................. 401
Traveling uphill Brow of hill ..................................... 203
Driving downhill ............................. 203
Maximum gradient-climbing capa-
bility ............................................... 203
Trim pieces (cleaning instruc-
tions) .................................................. 384
Trip computer (on-board com-
puter) .................................................. 277
Trip odometer Calling up ....................................... 277
Resetting (on-board computer) ...... 278
Trunk
see Tailgate Index
21

operating conditions, i.e. differing load and
speed conditions. Example: tire pressure table with tire dimensions
If a tire size precedes a tire pressure, the tirepressure information following is only valid
for that tire size. The load conditions "partially
laden" and "fully laden" are defined in the
table for different numbers of occupants and
amounts of luggage. The actual number of
seats may differ. Some tire pressure tables show only the rim
diameters instead of the full tire size, e.g.
R18. The rim diameter is part of the tire size
and can be found on the tire sidewall
(Y page 423).
If the tire pressures have been set to the
lower values for lighter loads and/or lower
road speeds, the pressures should be reset to the higher values:
R if you want to drive with an increased load
and/or
R if you want to drive at higher road speeds
i The tire pressures for increased loads
and/or higher road speeds, shown in the tire pressure table, may have a negative
effect on driving comfort.
If the tire pressure is not set correctly, this
can lead to an excessive build up of heat and
a sudden loss of pressure.
For more information, contact a qualified spe- cialist workshop. Important notes on tire pressure
G
WARNING
If the tire pressure drops repeatedly, the
wheel, valve or tire may be damaged. Tire
pressure that is too low may result in a tire
blow-out. There is a risk of an accident. R Check the tire for foreign objects.
R Check whether the wheel is losing air or the
valve is leaking.
If you are unable to rectify the damage, con-
tact a qualified specialist workshop. G
WARNING
If you fit unsuitable accessories onto tire
valves, the tire valves may be overloaded and malfunction, which can cause tire pressure
loss. Due to their design, retrofitted tire pres- sure monitors keep the tire valve open. This
can also result in tire pressure loss. There is a
risk of an accident.
Only screw the standard valve cap or other
valve caps approved by Mercedes-Benz for
your vehicle onto the tire valve.
Use a suitable pressure gauge to check the
tire pressure. The outer appearance of a tire
does not permit any reliable conclusion about the tire pressure. On vehicles equipped with
the electronic tire pressure monitoring sys-
tem, the tire pressure can be checked using
the on-board computer.
The tire temperature and pressure increase
when the vehicle is in motion. This is depend-
ent on the driving speed and the load.
Therefore, you should only correct tire pres-
sures when the tires are cold. Tire pressure
411Wheels and tires Z