2002 Mercedes G-Class Owner's Manual - Page 247

Instruments and controls Driving systems Operation Driving Instrument cluster display Practical hints Car care Technical data Index 244 When testing the parking brake on a brake test dynamometer, the engine must be shut off. Otherwise, the ESP will immediately be engaged and will apply the rear wheel brakes. In winter operation, the maximum effectiveness of the ESP is only achieved with Mercedes-Benz recommended M+S rated radial-ply tires and/or snow chains. Synchronizing ESP If the power supply was interrupted (battery disconnected or empty), the ESP warning lamp v and warning messages appears in the multifunction display with the engine running. Turn steering wheel completely to the left and then to the right. The ESP warning lamp v and the warning messages in the multifunction display should go out. If the ESP warning lamp v comes on continuously and warning messages appears in the multifunction display with the engine running, a malfunction has been detected in either system. Only partial engine output will be available. If the BAS malfunctions, the brake system functions in the usual manner, but without BAS, ESP and 4-ETS. If the ESP warning lamp v and the É malfunction indicator lamp come on and warning messages appears in the multifunction display, have the BAS or ESP checked at your authorized Mercedes-Benz Light Truck Center as soon as possible. With the ABS malfunctioning, the BAS, ESP and 4-ETS are also switched off. For warning messages and malfunction indicator lamps, see page 264 and page 272. Driving the vehicle with varied size tires will cause the wheels to rotate at different speeds, therefore the ESP may activate (yellow ESP warning lamp v in speedometer dial comes on). For this reason, all wheels, including the spare wheel, must have the same tire outside diameter.