2004 Mercedes S-Class Owner's Manual - Page 83

Safety and Security Driving safety systems Four wheel electronic traction system (4MATIC) with the ESP Models with all-wheel drive only: The 4MATIC improves the vehicle's ability to use available traction, e.g. during winter operation in mountains under snowy conditions, by applying power to all four wheels. Warning! G ! Performance testing must only be conducted on a two-axle dynamometer. Otherwise the transfer case can be damaged, which is not covered by the Mercedes-Benz Limited Warranty. If you see the ESP warning lamp v flashing in the speedometer dial, 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 ESP cannot prevent accidents resulting from excessive speed. ! Because of the ESP's automatic operation, 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 the parking brake is being tested on a brake test dynamometer. Active braking action through the ESP may otherwise seriously damage the front or rear axle brake system. Operational tests with the engine running can only be conducted on a two-axle dynamometer. ! Do not tow with one axle raised. Otherwise the transfer case can be damaged, which is not covered by the Mercedes-Benz Limited Warranty. 82