2005 Mercedes C-Class Owner's Manual - Page 360

Practical hints Flat tire Screw air hose 4 onto the collapsible tire valve. Insert electrical plug 3 into vehicle cigarette lighter socket. Turn the SmartKey in the starter switch to position 1. Press I on electric air pump switch 2. The electric air pump should now switch on and inflate the collapsible tire. Inflate the tire to approximately 36 psi (2.5 bar). This takes about five minutes for the collapsible tire. Air hose 4 and union nut 5 can become hot duration inflation. Exercise proper caution to avoid burning yourself when using the equipment. ! Do not operate the electric air pump longer than six minutes without interruption. Otherwise it may overheat. You may operate the electric air pump again after it has cooled off. Press 0 on electric air pump switch 2. Turn the SmartKey in the starter switch to position 0. If the tire pressure is above 36 psi (2.5 bar), release excess tire pressure using the vent screw. Warning! G Follow recommend inflation pressures. Do not overinflate tires. Overinflating tires can result in sudden deflation (blowout) because they are more likely to become punctured or damaged by road debris, potholes, etc. Do not underinflate tires. Underinflated tires wear unevenly, adversely affect handling and fuel economy, and are more likely to fail from being overheated. Detach the electric air pump. Store the electrical plug and the air hose behind the flap and place the electric air pump back in the trunk. 358