2003 Mercedes S-Class Owner's Manual - Page 351

Practical hints Towing the vehicle ! When towing the vehicle with all wheels on the ground, please note the following: With the automatic central locking activated and the SmartKey in starter switch position 2, or KEYLESS-GO* start/stop button (if so equipped) in position 2, the vehicle doors lock if the left front wheel as well as the right rear wheel are turning at vehicle speeds of approximately 9 mph (15 km/h) or more. Switch off the tow-away alarm ( page 84). To prevent the vehicle doors from locking, deactivate the automatic central locking ( page 102). Towing of the vehicle should only be done using the properly installed towing eye bolt. Never attach tow cable, tow rope or tow rod to vehicle chassis, frame or suspension parts. 1 Cover on right side of front bumper i The selector lever will remain locked in position P and the SmartKey will not turn in the starter switch if the battery is disconnected or discharged. See notes on the battery ( page 344) or on jump starting ( page 347). Installing towing eye bolt 2 Cover on right side of rear bumper Removing cover Press mark on cover in direction of arrow. Lift cover off to reveal threaded hole for towing eye bolt. Installing towing eye bolt Take towing eye bolt and wheel wrench out of trunk ( page 322). Screw towing eye bolt clockwise into its stop and tighten with wheel wrench. 351