2009 Mercedes SL-Class Owner's Manual - Page 332

Practical hints Towing the vehicle Towing the vehicle Safety notes Mercedes-Benz recommends that the vehicle be transported with all wheels off the ground using flatbed or appropriate wheel lift/dolly equipment. This method is preferable to other types of towing. increased! For more information, see "Electro-hydraulic brake system" in this in this Operator's Manual. If there is a malfunction in the electrohydraulic brake system, we recommend that the vehicle be transported with all wheels off the ground using flatbed or appropriate wheel lift/dolly equipment. If circumstances do not permit the recommended towing methods, the vehicle may be towed with all wheels on the ground or front axle raised only so far as necessary to have the vehicle moved to a safe location where the recommended towing methods can be employed. X Switch off the tow-away alarm before towing the vehicle with all wheels off the ground or front axle raised (Y page 72). bumpy roads will damage radiator and supports. RTowing of the vehicle should only be done using the properly installed towing eye bolt. Never attach a tow cable, tow rope or tow rod to the vehicle chassis, frame or suspension parts. ! To prevent damage during transport, do not tie down vehicle by its chassis or suspension parts. G Warning! The electro-hydraulic brake system requires electrical power to operate. A malfunction in the vehicle's power supply or electrical system may impair brake system operation and switch it into its emergency operation mode. In such a case, the red brake warning lamp comes on and warning messages appear in the multifunction display while driving. To brake, the driver must then apply significantly greater brake pedal pressure and depress the pedal much further to obtain the expected braking effect. If necessary, apply full pressure to the brake pedal. Brakes are only applied to the front wheels. Stopping distance is i If the battery is disconnected or discharged Rthe SmartKey will not turn in the starter switch Rthe automatic transmission will remain in park position P RFor more information see "Battery" (Y page 326) or "Jump starting" (Y page 328). ! Before towing the vehicle observe the following instructions: RDo not tow-start the vehicle. You could otherwise seriously damage the automatic transmission which is not covered by the Mercedes-Benz Limited Warranty. RDo not tow with sling-type equipment. Towing with sling-type equipment over 330