Mercedes Benz 2008 c300 Manuale Utente

Treadwear indicators (TWI) are required by 
law. These indicators are located in six 
places on the tread circumference and be-
come visible at a tread depth of approxi-
mately 

1

/

16

in (1.6 mm), at which point the 

tire is considered worn and should be 
replaced.

The treadwear indicator appears as a solid 
band across the tread.

Specified tire inflation pressures must be 
maintained. This applies particularly if the 
tires are subject to extreme operating con-
ditions (e.g. high speeds, heavy loads, high 
ambient temperatures).

For more information, see “Tires and 
wheels” (

Depending on the depth of the water layer 
on the road, hydroplaning may occur, even 
at low speeds and with new tires. Reduce 
vehicle speed, avoid track grooves in the 
road and apply brakes cautiously in the 
rain.

G

If you feel a sudden significant vibration or 

ride disturbance, or you suspect that possi-

ble damage to your vehicle has occurred, 

you should turn on the hazard warning flash-

ers, carefully slow down, and drive with cau-

tion to an area which is a safe distance from 

the road.

Inspect the tires and the vehicle underbody 

for possible damage. If the vehicle or tires 

appear unsafe, have the vehicle towed to 

the nearest Mercedes-Benz Center or tire 

dealer for repairs.

G

Although the applicable federal motor vehi-

cle safety laws consider a tire to be worn 

when the treadwear indicators (TWI) be-

come visible at approximately 

1

/

16

 in 

(1.6 mm), we recommend that you do not al-

low your tires to wear down to that level. As 

tread depth approaches 

1

/

8

 in (3 mm), the 

adhesion properties on a wet road are 

sharply reduced.

Depending upon the weather and/or road 

surface (conditions), the tire traction varies 

widely.

G

Do not drive with a flat tire. A flat tire affects 

the ability to steer or brake the vehicle. You 

may lose control of the vehicle. Continued 

driving with a flat tire or driving at high 

speed with a flat tire will cause excessive 

heat build-up and possibly a fire.