Skip the auto shop - Our mechanics make house calls

Q: Car won't start but the electrical stuff is working

asked by on

my 2008 c300 window, radio, lights are working but when I start the car it turns over but immediately cuts off

My car has 110000 miles.
My car has an automatic transmission.

A: A no-start or start-then-stalls issue can b...

A no-start or start-then-stalls issue can be caused by a couple of different things. A bad smart key can be one of them. Use the second smart key provided with the vehicle to try starting the vehicle. If it starts, then the first key may be faulty.

If the vehicle behaves the same way with the second smart key, the electronic ignition switch may be at fault. They can go bad and fail to recognize the smart keys and require replacement. That would require the vehicle being towed to your local Mercedes dealership service department and providing them with all of the keys you have for the vehicle. All keys would have to be programmed/coded to the new ignition switch or they will fail to start the vehicle.

If you’d like to have this issue looked at in person, consider YourMechanic, as one of our mobile technicians can come to your location to diagnose the no-start issue.

Was this answer helpful?

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Car stalls when idling

Your problem may or may not be associated with the engine cleaning. But for a moment, let's assume that it is. You hit the right spot when you changed the distributor cap, but if there are any covers or tubes...

Q: Brake lights don't work when I brake or reverse.

Hello. It sounds like there may be an issue with the brake light wiring system. It is also possible that the brake light switch or brake light switch wiring is faulty. It would be a good idea to have...

Q: What would happen if the wrong catalytic converter was installed in my 2001 Toyota Camry

Hello. The wrong converter will cause your check engine light to come on and will cause you to not pass emissions. It can also cause some performance and efficiency issues over time. There are specific converters built for all vehicles...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.