2004 Mercedes S-Class Owner's Manual - Page 344

Practical hints What to do if ...? Display symbol Display message TIRE PRES. MONITOR REACTIVATED TIRE PRES. MONITOR CURRENTLY UNAVAILABLE Possible cause The tire pressure monitor is using the current pressure values as the basis for monitoring. The tire inflation pressure monitor* is unable to monitor the tire pressure due to: the presence of several wheen sensors in the vehicle excessive wheel sensor temperatures a nearby radio interference source unrecognized wheel sensors installed Possible solution H Remove any extra wheel sensors from the vehicle As soon as the causes of the malfunction have been removed, the tire pressure monitor automatically becomes active again. TIRE PRES. MONITOR NOT OPERATIONAL DRIVE TO WORKSHOP The tire pressure monitor or a wheel sensor is malfunctioning. A wheel without proper sensor was installed. Have the tire inflation pressure monitor checked by an authorized Mercedes-Benz Center. Have the wheels checked. Warning! 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 will cause excessive heat build-up and possibly a fire. 343