🚨 1998 Mercedes-Benz SL320 R129: Emergency Neutral
The R129 SL320 uses a traditional floor-mounted automatic transmission lever with electronic shift lock controlled by the brake-light switch.
🧰 Drafted with AI under the editorial review of Chris Hackleman & Jeff Moore — cross-check against your owner’s manual when possible.
⚠️ Chock the wheels first — neutral means the car can roll. Set the parking brake while you work, never stand downhill of the vehicle, and try a 12-volt jump before any override: power fixes most stuck-in-park problems instantly.
The procedure
- Ensure the vehicle is on a level surface and set the parking brake firmly
- Turn the ignition key to position 1 or 2 (ACC or ON) if battery has any charge remaining
- Locate the shift lock override slot on the left side of the shifter base, covered by a small rectangular plastic cap
- Using a flathead screwdriver or the emergency key blade, carefully pry off the plastic override cap
- Insert the screwdriver or key blade into the override slot and press down firmly while simultaneously pulling the shifter toward you and moving it to Neutral
- If the battery is completely dead and ignition cannot be turned on, you may need to provide auxiliary 12V power to the jump-start terminals under the hood first to energize the shift lock solenoid
Shift-lock override location
Left side of shifter base, under small rectangular plastic cap
With zero electrical power
With zero 12V power, the shift lock solenoid remains engaged. You must either provide auxiliary power via jump-start terminals under the hood, or continue using the mechanical override slot while applying significant force. The steering lock will also remain engaged without power, making towing difficult—flatbed is strongly recommended.