2010 Mercedes GLK-Class Owner's Manual - Page 247

Driving instructions braking distance, which could lead to an accident. To avoid this danger, you should: Roccasionally 245 brake carefully when you are driving on salt-covered roads, so that any layer of salt that may have built up on the brake discs and the brake linings is removed without putting other road users at risk a greater distance to the vehicle ahead and drive with particular care apply the brakes at the end of a trip and immediately after commencing a new trip, so that salt residues are removed from the brake disc ! Vehicles with 4MATIC: Only conduct operational or performance tests on a two-axle dynamometer. If such tests are necessary, contact an authorized Mercedes-Benz Center. You could otherwise seriously damage the brake system or the transfer case which is not covered by the Mercedes-Benz Limited Warranty. Rcarefully Rthe parking brake is being tested on a brake test dynamometer the vehicle with the front or rear axle raised (not permissible for vehicles with 4MATIC) Rtowing Brake service ! The brake fluid level in the reservoir may be too low if the red brake warning lamp in the instrument cluster comes on while the engine is running and an acoustic warning sounds. Observe additional messages in the multifunction display that may appear. Brake pad wear or a leak in the system may be the reason for low brake fluid in the reservoir. Have the brake system inspected immediately. Contact an authorized Mercedes-Benz Center. All checks and service work on the brake system should be carried out by qualified technicians only. Contact an authorized Mercedes-Benz Center. Only install brake pads and use brake fluid recommended by Mercedes-Benz. G Warning! If other than recommended brake pads are installed, or other than recommended brake fluid is used, the braking properties of the vehicle can be degraded to an extent that safe braking is substantially impaired. This could result in an accident. Active braking action through the ESP® may otherwise seriously damage the brake system which is not covered by the Mercedes-Benz Limited Warranty. If your brake system is only subjected to moderate loads, you should occasionally test the effectiveness of the brakes by applying above-normal braking pressure at higher speeds. This will also enhance the grip of the brake pads. G Warning! Make sure not to endanger any other road users when carrying out these braking maneuvers. Refer to the description of the Brake Assist System (BAS) (Y page 60). Driving off Warm up the engine smoothly. Do not place full load on the engine until the operating temperature has been reached. ! When driving off on a slippery surface, do not allow a drive wheel to spin for an Z Operation Rmaintain ! Because the ESP® operates automatically, the engine and ignition must be shut off (SmartKey in starter switch position 0 or 1) when