Wheels and tires -> Notes on noise or unusual handling characteristics for Your Mercedes GLC Class SUV First Generation (2015-2021)

458 Wheels and tires  
#
Notes on noise or unusual handling charac‐  
teristics  
Check the tires regularly for signs of  
damage and replace any damaged tires  
immediately.  
Minimum tread depth for:  
R
Summer tires: â in (3 mm)  
While driving, pay attention to vibrations, noises  
and unusual handling characteristics, e.g. pulling  
to one side. This may indicate that the wheels or  
tires are damaged. If you suspect that a tire is  
defective, reduce your speed immediately. Stop  
the vehicle as soon as possible to check the  
wheels and tires for damage. Hidden tire dam‐  
age could also be causing the unusual handling  
characteristics. If you find no signs of damage,  
have the tires and wheels checked at a qualified  
specialist workshop.  
R
M+S tires: ã in (4 mm)  
#
For safety reasons, replace the tires  
&
WARNING Risk of aquaplaning due to  
insufficient tire tread  
before the legally prescribed limit for  
the minimum tread depth is reached.  
Insufficient tire tread will result in reduced  
tire grip. The tire tread is no longer able to  
dissipate water.  
This means that in heavy rain or slush the  
risk of hydroplaning is increased, in particu‐  
lar if vehicle speed is not adapted to suit the  
conditions.  
If the tire pressure is too high or too low,  
tires may exhibit different levels of wear at  
different locations on the tire contact sur‐  
face.  
Carry out the following checks on all wheels reg‐  
ularly, at least once a month or as required, e.g.  
prior to a long journey or driving off-road:  
R
Check the tire pressure (/ page 460).  
R
Visually inspect wheels and tires for damage.  
R
Check the valve caps.  
Notes on regularly inspecting wheels and  
tires  
The valves must be protected against mois‐  
ture and dirt by the valve caps approved  
especially for your vehicle by Mercedes-Benz.  
&
WARNING Risk of accident from dam‐  
aged tires  
#
R
Visual check of the tire tread depth and the  
tire contact surface across the entire width.  
Thus, you should regularly check the  
tread depth and the condition of the tire  
contact surface across the entire width  
of all tires.  
Damaged tires can cause tire pressure loss.  
As a result, you could lose control of your  
vehicle.  
The minimum tread depth for summer tires is  
â in (3 mm) and for winter tires ã in  
(4 mm).