1. Insert the key: Make sure you're using the correct key for the car.
2. Turn the key slightly: Gently wiggle the key while turning it from the "lock" position. Don't force it. The lock mechanism is sensitive and can be damaged by excessive force.
3. Turn the steering wheel: While gently turning the key, gently move the steering wheel back and forth. Find the "sweet spot" where the lock releases. This usually involves very slight movements of both the key and the wheel. You might feel a slight click or hear a very quiet mechanical release.
4. Start the car: Once the wheel is free, you should be able to turn the key to the "on" position and start the car.
If it's still stuck:
* Check the key: Ensure the key isn't worn or damaged. A damaged key won't engage the tumblers correctly.
* Try a different key: If you have a spare key, try it. This helps determine if the problem is with the key or the lock mechanism.
* Inspect the ignition switch: Look for any obvious obstructions or damage around the ignition switch itself. However, this should only be done if you have experience working with vehicle electrical systems. Improper work here can cause significant damage.
* Avoid excessive force: Forcing the key or steering wheel can break the ignition tumbler or steering column lock.
* Professional help: If you can't unlock the steering wheel, take your Mercedes to a qualified mechanic or locksmith specializing in classic cars. They have specialized tools and expertise to deal with these situations without causing further damage.
Important Note: Never use excessive force on the steering wheel or the ignition key. This could damage the ignition switch, steering column, or even the key itself, leading to more expensive repairs.
