Tire Monitoring System: Description and Operation: Overview
Tire pressure warning system - GeneralGeneral
A tire pressure warning system is fitted to 928 S 4 vehicles as standard, from Mod. 1989 onwards, initially excluding USA and Canada, however. The tire pressure warning system is another development which constitutes a significant contribution towards road safety. The tire inflation pressure is monitored by the control system, which
- monitors the correct inflation pressure with a greater degree of accuracy and reliability than any pressure tester in the on-board tool set, at the garage or in the workshop
- automatically allows for temperature's influence on the air pressure (temperature-compensated threshold value system)
- Ensures perfect driving behavior and low fuel consumption as a result of correct inflation pressure
- Helps to prevent initial tire damage and Increased tread wear as a result of inadequate inflation pressure.
The tire pressure warning system detects inadequate inflation pressure in one or several wheels, and displays this on the instrument cluster after at least 20 m distance at a speed of more than 5 km/h.