Requirements:
You can use TIREFIT tire sealant to seal perforation damage of up to 0.16 in (4 mm), particularly those in the tire contact surface. You can use TIREFIT in outside temperatures down to -4°F (-20°C).
WARNING Risk of accident when using tire sealant
The tire sealant may be unable to seal the tire properly, especially in the following cases:
After journeys with very low tire pressure or with flat tires
Do not continue driving.
Consult a qualified specialist workshop.
WARNING Risk of injury and poisoning from tire sealant
The tire sealant is harmful and causes irritation. Do not allow it to come into contact with the skin, eyes or clothing, and do not swallow it. Do not inhale tire sealant fumes. Keep the tire sealant away from children.
If you come into contact with the tire sealant, observe the following:
Rinse off the tire sealant from your skin immediately using water.
If tire sealant gets into your eyes, thoroughly rinse out the eyes using clean water.
If tire sealant has been swallowed, immediately rinse out the mouth thoroughly and drink plenty of water. Do not induce vomiting and seek medical attention immediately.
Change out of any clothes contaminated with tire sealant immediately.
If allergic reactions occur, seek medical attention immediately.
NOTE Overheating due to the tire inflation compressor running too long
Do not run the tire inflation compressor for longer than ten minutes without interruption.
Comply with the manufacturer's safety notes on the sticker on the tire inflation compressor.
Have the tire sealant bottle replaced in a qualified specialist workshop every five years.
Do not remove any foreign objects which have entered the tire.
Affix part of the TIREFIT sticker to the instrument cluster within the driver's field of vision.
Affix part of the TIREFIT sticker near the valve on the wheel with the faulty tire.
Pull plug with the cable and hose out of the tire inflation compressor housing.
Push the plug of hose into flange of tire sealant bottle until the plug engages.
Place tire sealant bottle head downwards into recess of the tire inflation compressor.
Remove the valve cap from valve on the faulty tire.
Screw filling hose onto valve .
Insert plug into a 12 V socket in your vehicle.
Switch on the ignition.
Switch on the tire inflation compressor using On/Off switch .
The tire is inflated. First, tire sealant is pumped into the tire. The pressure may briefly rise to approximately 500 kPa (5 bar/73 psi).
Do not switch off the tire inflation compressor during this phase!
Let the tire inflation compressor run for a maximum of ten minutes.
The tire should then have attained a tire pressure of at least 200 kPa (2.0 bar/ 29 psi).
If tire sealant leaks out, make sure you clean the affected area as quickly as possible. It is preferable to use clean water.
If you get tire sealant on your clothing, have it cleaned as soon as possible with perchloroethylene.
If, after ten minutes, a tire pressure of 200 kPa (2.0 bar/29 psi) has not been attained:
Switch off the tire inflation compressor.
Unscrew the filling hose from the valve of the faulty tire.
Please note that tire sealant may leak out when unscrewing the filling hose.
Drive forwards or in reverse very slowly for approximately 33 ft (10 m).
Pump up the tire again.
After a maximum of ten minutes the tire pressure must be at least 200 kPa (2.0 bar/ 29 psi).
WARNING Risk of accident due to the specified tire pressure not being attained
If the minimum tire pressure is not reached after the specified time, the tire is too badly damaged. The tire sealant cannot repair the tire in this instance.
The braking and driving characteristics may be greatly impaired.
Do not continue driving.
Consult a qualified specialist workshop.
If, after ten minutes, a tire pressure of 200 kPa (2.0 bar/29 psi) has been attained:
Switch off the tire inflation compressor.
Unscrew the filling hose from the valve of the faulty tire.
WARNING Risk of accident from driving with sealed tires
A tire temporarily sealed with tire sealant impairs the handling characteristics and is not suitable for higher speeds.
Adapt your driving style accordingly and drive carefully.
Do not exceed the maximum speed limit with a tire that has been repaired using tire sealant.
Observe the maximum permissible speed for a tire sealed with tire sealant 50 mph (80 km/h).
NOTE Staining caused by leaking tire sealant
After use, excess tire sealant may leak out from the filling hose.
Therefore, place the filling hose in the plastic bag that contained the TIREFIT kit.
ENVIRONMENTAL NOTE Environmental pollution caused by environmentally irresponsible disposal
Tire sealant contains pollutants.
Have the tire sealant bottle disposed of professionally, e.g. at an authorized Mercedes-Benz Center.
Store the tire sealant bottle and the tire inflation compressor.
Pull away immediately.
Stop driving after approximately ten minutes and check the tire pressure using the tire inflation compressor.
The tire pressure must now be at least 130 kPa (1.3 bar/19 psi).
WARNING Risk of accident due to the specified tire pressure not being attained
If the specified tire pressure is not reached, the tire is too badly damaged. The tire sealant cannot repair the tire in this instance.
The braking and driving characteristics may be greatly impaired.
Do not continue driving.
Consult a qualified specialist workshop.
In cases such as the one mentioned above, contact an authorized Mercedes-Benz Center. Or call 1-800-FOR-MERCedes (in the USA) or 1-800-387-0100 (in Canada).
Correct the tire pressure if it is still at least 130 kPa (1.3 bar/19 psi). See the Tire and Loading Information placard on the B‑pillar on the driver's side or the tire pressure table in the fuel filler flap for values.
To increase the tire pressure: switch on the tire inflation compressor.
To reduce the tire pressure: press pressure release button next to manometer .
When the tire pressure is correct, unscrew the filling hose from the valve of the sealed tire.
Screw the valve cap onto the valve of the sealed tire.
Pull the tire sealant bottle out of the tire inflation compressor.
The filling hose stays on the tire sealant bottle.
Drive to the nearest qualified specialist workshop and have the tire, tire sealant bottle and filling hose replaced there.