Q: Ignition key not working - 1987 Mercedes-Benz 420SEL

asked by on

I am having trouble with my car key. I cannot get it to work in my ignition, and the car has been sitting in the garage for a couple of months. I can open the trunk, the doors and the glove compartment. Do you have any suggestions, solutions?

A: It's quite likely the battery is dead, ...

It's quite likely the battery is dead, and all electrical functions are inoperative. All of the locks have mechanical actuators. A certified technician from YourMechanic can replace your battery at your home or office and get you on your way.

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Car will not start/no fuel - 1989 Mercedes-Benz 420SEL

If you are certain it is the fuel (i.e. you have confirmed good spark at the plugs), start with power to the fuses (fuel pump), then the fuel pump relay to follow the power path to the fuel pump. It's...

Q: How do I change the settings for the unlock door function?

When the electronic key is on your person, you can unlock your car’s doors by pressing the sensor on the back either front door handle. The default setting makes it so that you can unlock all of the doors by...

Q: Power window coming off track.

Hello, to see why the window is coming off track, the door panel and water barrier will have to be removed and view the operation of the window to see the cause. You may need the aid of a mechanic,...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.