2019 MERCEDES-BENZ GLC snow chains

for safe maneuvering, parking and exiting aparking space. Make sure that no persons, ani-mals or objects are in the path of your vehicle.
When Parking Assist PARKTRONIC is deactiva-ted, Active Parking Assist is also unavailable.
For vehicles with a trailer tow hitch installed, theminimum length for parking spaces is slightlylonger.
If you have attached a trailer to your vehicle, youshould not use Active Parking Assist. Once theelectrical connection is established betweenyour vehicle and the trailer, Active ParkingAssist is no longer available. Parking AssistPARKTRONIC is deactivated for the rear area.
GWARNING
While parking or pulling out of a parking
space, the vehicle swings out and can drive
onto areas of the oncoming lane. This could
result in a collision with another road user.
There is a risk of an accident.
Pay attention to other road users. Stop the
vehicle if necessary or cancel the Active Park-
ing Assist parking procedure.
!If they cannot be avoided, drive over obsta-cles such as curbs slowly and at an obtuseangle. Otherwise, you may damage thewheels or tires.
Active Parking Assist may possibly indicateparking spaces which are not suitable for park-ing, for example:
Rwhere parking or stopping is prohibited
Rin front of driveways or entrances and exits
Ron unsuitable surfaces
Parking tips:
ROn narrow roads, drive as close to the parkingspace as possible
RParking spaces that are littered or overgrownmight be identified or measured incorrectly
RParking spaces that are partially occupied bytrailer drawbars might not be identified assuch or be measured incorrectly
RSnowfall or heavy rain may lead to a parkingspace being measured inaccurately
RPay attention to the warning messages ofParking Assist PARKTRONIC during the park-ing procedure (Ypage 181).
RYou can intervene in the steering procedureto correct it at any time. Active Parking Assistis then deactivated
RWhen transporting a load which protrudesfrom your vehicle, you should not use ActiveParking Assist
Rnever use Active Parking Assist when snowchains are installed
RAlways pay attention to the specified tirepressure for your vehicle. This has a directinfluence on the parking characteristics of thevehicle.
Use Active Parking Assist for parking spaces:
Rparallel or at right angles to the direction oftravel
Ron straight roads, not bends
Ron the same level as the road, e.g. not on thepavement
Detecting parking spaces
Objects located above the detection range ofActive Parking Assist will not be detected whenthe parking space is measured. These are nottaken into account when the parking procedureis calculated, e.g. overhanging loads, tail sec-tions or loading ramps of trucks. Active ParkingAssist may therefore guide you into the parkingspace too early.
GWARNING
If there are objects above the detection range:
RActive Parking Assist may steer too early
Rthe vehicle may not stop in front of these
objects
This could cause a collision. There is a risk of
an accident.
If objects are located above the detection
range, stop and deactivate Active Parking
Assist.
Further information about the detection range(Ypage 180).
176Driving systems
Driving and parking

For safety reasons, Mercedes-Benz recom-mends that you only use snow chains that havebeen specially approved for your vehicle byMercedes-Benz, or are of a correspondingstandard of quality. For more information,please contact a qualified specialist workshop.
If you intend to mount snow chains, please bearthe following points in mind:
RSnow chains may not be mounted on allwheel/tire combinations. Observe the infor-mation regarding permitted wheel/tire com-binations (Ypage 354).
ROnly use snow chains when driving on roadscompletely covered by snow. Remove thesnow chains as soon as possible when youcome to a road that is not snow-covered.
RLocal regulations may restrict the use of snowchains. Observe the appropriate regulations ifyou wish to mount snow chains.
RDo not exceed the maximum permissiblespeed of 31 mph (50 km/h).
ROn vehicles with AIR BODY CONTROL, youmust only drive at raised vehicle level if snowchains have been installed (Ypage 172).
RWhen snow chains are installed, never useActive Parking Assist (Ypage 175).
You may wish to deactivate ESP®when pullingaway with snow chains installed:
RAll vehicles (except Mercedes‑AMG vehicles)(Ypage 69)
RMercedes‑AMG vehicles (Ypage 70)
You can thereby allow the wheels to spin in acontrolled manner, achieving an increased driv-ing force (cutting action).
Tire pressure
Tire pressure specifications
Important safety notes
GWARNING
Underinflated or overinflated tires pose the
following risks:
Rthe tires may burst, especially as the load
and vehicle speed increase.
Rthe tires may wear excessively and/or
unevenly, which may greatly impair tire
traction.
Rthe driving characteristics, as well as steer-
ing and braking, may be greatly impaired.
There is a risk of an accident.
Follow recommended tire inflation pressures
and check the pressure of all the tires includ-
ing the spare wheel:
Rmonthly, at least
Rif the load changes
Rbefore beginning a long journey
Runder different operating conditions, e.g.
off-road driving
If necessary, correct the tire pressure.
The data on the Tire and Loading Informationplacard and tire pressure table shown here areexamples. Tire pressure specifications are vehi-cle-specific and may deviate from the datashown here. The tire pressure specificationsthat are valid for your vehicle can be found onthe Tire and Loading Information placard andtire pressure table on the vehicle.
General notes
The recommended tire pressures for the tiresmounted at the factory can be found on thelabels described here.
Operation with a trailer:the applicable valuefor the rear axle is the maximum tire pressurevalue stated in the table inside the fuel filler flap.
Further information on tire pressures can beobtained at a qualified specialist workshop.
Tire pressure333
Wheels and tires
Z

Maximum tire pressures
CExample: maximum permissible tire pres-sure
Never exceed the maximum permissible tireinflation pressure. Always observe the recom-mended tire pressure for your vehicle whenadjusting the tire pressure (Ypage 333).
iThe actual values for tires are vehicle-spe-cific and may deviate from the values in theillustration.
Checking the tire pressures
Important safety notes
Observe the notes on tire pressure(Ypage 333).
Information on air pressure for the tires on yourvehicle can be found:
Ron the vehicle's Tire and Loading Informationplacard on the B-pillar
Rin the tire pressure table in the fuel filler flap(Ypage 333)
Rin the "Tire pressure" section
Checking tire pressures manually
To determine and set the correct tire pressure,proceed as follows:
XRemove the valve cap of the tire that is to bechecked.
XPress the tire pressure gauge securely ontothe valve.
XRead the tire pressure and compare it to therecommended value on the Tire and LoadingInformation placard or the tire pressure table(Ypage 333).
XIf the tire pressure is too low, increase the tirepressure to the recommended value.
XIf the tire pressure is too high, release air. Todo so, press down the metal pin in the valve,using the tip of a pen for example. Then checkthe tire pressure again using the tire pressurechecker.
XScrew the valve cap onto the valve.
XRepeat these steps for the other tires.
Tire pressure loss warning system
General notes
While the vehicle is in motion, the tire pressureloss warning system monitors the set tire pres-sure using the rotational speed of the wheels.This enables the system to detect significantpressure loss in a tire. If the speed of rotation ofa wheel changes as a result of a loss of pressure,a corresponding warning message will appear inthe multifunction display.
You can recognize the tire pressure loss warningby theRun Flat Indicator ActiveRun Flat Indicator ActivePressPress'OK' to Restart'OK' to Restartmessage which appears intheServiceServicemenu of the multifunction display.Information on the message display can befound in the "Restarting the tire pressure losswarning system" section (Ypage 337).
Important safety notes
The tire pressure warning system does not warnyou of an incorrectly set tire pressure. Observethe notes on the recommended tire pressure(Ypage 333).
The tire pressure loss warning does not replacethe need to regularly check the tire pressure. Aneven loss of pressure on several tires at thesame time cannot be detected by the tire pres-sure loss warning system.
The tire pressure monitor is not able to warn youof a sudden loss of pressure, e.g. if the tire ispenetrated by a foreign object. In the event of asudden loss of pressure, bring the vehicle to ahalt by braking carefully. Avoid abrupt steeringmovements.
The function of the tire pressure loss warningsystem is limited or delayed if:
Rsnow chains are mounted on your vehicle'stires.
Rroad conditions are wintry.
336Tire pressure
Wheels and tires