2007 Mercedes R-Class Owner's Manual - Page 107

Safety and Security Driving safety systems 4-ETS Warning! The 4-Electronic Traction System (4-ETS) improves the vehicle's ability to utilize available traction, especially under slippery road conditions. The brakes are applied to the spinning wheel and power is transferred to the wheel(s) with traction. The ESP® warning lamp v in the instrument cluster starts to flash at any vehicle speed, as soon as a tire loses traction and the wheel begins to spin. G When you see the ESP® warning lamp v flashing in the instrument cluster, then proceed as follows: While driving off, apply as little throttle as possible. While driving, ease up on the accelerator. Adapt your speed and driving style to the prevailing road conditions. Failure to observe these guidelines could cause the vehicle to skid. The 4-ETS cannot prevent accidents resulting from excessive speed. ! Because the ESP® operates automatically, the engine and ignition must be shut off (SmartKey in starter switch position 0 or 1 or KEYLESS-GO* start/stop button in position 0 or 1) when testing the brakes on a brake test dynamometer and such testing should be no longer than 10 seconds. Active braking action through ESP® may otherwise seriously damage the brake system which is not covered by the Mercedes-Benz Limited Warranty. i If the yellow ESP® warning lamp v comes on while driving, the 4-ETS is being switched off temporarily to prevent overheating of the drive wheel brakes. In addition, the message ABS, ESP unavailable See Operator's Manual appears in the multifunction display. For more information, see the "Practical hints" section ( page 420) and ( page 433). ! Operational or performance test must only be conducted on a two-axle dynamometer. If such tests are necessary, contact an authorized Mercedes-Benz Light Truck Center. You could otherwise seriously damage the brake system or the transfer case which is not covered by the Mercedes-Benz Limited Warranty. 106