2010 Mercedes GL-Class Owner's Manual - Page 112

110 X Driving and parking Depress the brake pedal during the starting procedure. X Do not depress the accelerator pedal. X Gasoline engine: Press the KEYLESS-GO start/stop button once. The engine starts automatically. Diesel engine: Press the KEYLESS-GO start/stop button once. The engine preglows and starts automatically. The engine does not start. You cannot hear the starter. The battery may not be charged sufficiently. X Get a jump start (Y page 350). If the engine will not start despite a jump start: X Controls in detail X i If the engine is at operating temperature, the time the engine needs to preglow is reduced. Starting difficulties ! Remember that extended starting attempts can drain the battery. The engine does not start. You can hear the starter. There could be a malfunction in the engine electronics or in the fuel supply system. Carry out the following steps: X Contact an authorized Mercedes-Benz Center or call Roadside Assistance. The starter has been exposed to excessive temperatures. X Let the starter cool for about 2 minutes. X Repeat the starting procedure. If the engine does not start after several starting attempts: X Contact an authorized Mercedes-Benz Center or call Roadside Assistance. Driving off G Warning! On slippery road surfaces, never downshift in order to obtain braking action. This could result in drive wheel slip and reduced vehicle control. Your vehicle's ABS will not prevent this type of loss of control. If you are starting the engine with the SmartKey: Turn the SmartKey in the starter switch to position 0 and repeat the starting procedure. X If you are starting the engine with KEYLESSGO: Close any doors that may be open to allow for better detection of the SmartKey. or X Remove the KEYLESS-GO start/stop button from the starter switch. X Start the engine with the SmartKey as radio signals from another source may be interfering with the KEYLESS-GO function. X Repeat the starting procedure. If the engine does not start after several starting attempts: X ! Do not run a cold engine at high engine speeds. Running a cold engine at high engine speeds may shorten the service life of the engine. This is not covered by the Mercedes-Benz Limited Warranty. ! If an acoustic warning sounds and the message Release Parking Brake appears in the multifunction display when driving off, you have forgotten to release the parking brake. Release the parking brake. ! Avoid spinning of a drive wheel. This may cause serious damage to the drivetrain which is not covered by the Mercedes-Benz Limited Warranty. Contact an authorized Mercedes-Benz Center or call Roadside Assistance.