2006 Mercedes SL-Class Owner's Manual - Page 410

Practical hints Flat tire Turn the SmartKey in the starter switch to position 1. or Press the KEYLESS-GO* start/stop button on the gear selector lever once without depressing the brake pedal. Press I on the electric air pump switch 2. The electric air pump should now switch on and inflate the tire. Inflate the spare tire for the SL 500 to 36 psi (2.5 bar) and the spare tire for the SL 600 and SL 55 AMG to 44 psi (3.0 bar). This takes about 5 minutes for the spare tire. Air hose 4 and union nut 5 can become hot during inflation. Exercise proper caution to avoid burning yourself when using the equipment. ! Compare the recommended tire inflation pressure for your vehicle with the tire inflation pressure on the yellow label located on the spare wheel rim. If the tire inflation pressure on the yellow label on the spare wheel rim differs from the values given in this Operator's Manual, inflate the tire to the recommended tire inflation pressure given on the yellow label on the spare wheel rim. Press 0 on the electric air pump switch 2. Turn the SmartKey in the starter switch to position 0. or Press KEYLESS-GO* start/stop button on the gear selector lever twice without depressing the brake pedal. The electric air pump should now be switched off. If the spare tire inflation pressure for the SL 500 is above 36 psi (2.5 bar) and for the SL 600 and SL 55 AMG above 44 psi (3.0 bar), release excess spare tire inflation pressure using the vent screw. ! Do not operate the electric air pump longer than 8 minutes without interruption. Otherwise it may overheat. You may operate the air pump again after it has cooled off. 409