The car would even still respond to the gas pedal input. Next, put the A/C and rear defroster to off and set the speed at 90 km/h. That wire is hot when the key is on and opens the valve, allowing it to close when the key is off. 2004 s430 4-matic. If the tumblers in the lock fail you can find yourself stranded and it can be expensive to get the car towed and the lock replaced. at traffic lights). The Comand system on my W212 shuts down in approximately 2 -3 minutes while in accessory mode (engine not running). The most common way that a computer "won't turn on" is when the PC actually does power on but doesn't display anything on the monitor. You may find it hard to believe but here is a video showing Mercedes that wouldn’t shut off. Many GM vehicles have a system that allows the radio to stay on when you turn the key off, until you open a door. Removing the fuel pump relay turned off the car. the command center screen won't turn off. The system shuts itself off, without warning, whether you are in the process of recording music files to … I imagine this is to conserve battery power. Normally you exit the vehicle, the screen goes down and it shuts off. So manufacturers added an electrical shut-off valve to their carburetors and called it an anti-dieseling solenoid. Radio won't shut off when the door opens If my site is a value to you, I need your help could you please donate so I can keep this site free to everyone. All about readiness monitors won’t reset issues >> Looking for a car from Japan with good conditions, click here << It shows a white screen with a small cursor in it as if it was stuck on a … While the instrument cluster lights would turn off once you removed the key, the engine would still run. It’s usually cylindrical, about 1-2 inches long and has a single wire connected to it. When you get back in, the screen goes up and goes back to whatever source/channel you were on before. command center question. You see lights on the computer case, probably hear fans running from inside, and may even hear sounds, but nothing at all shows up on your screen. Sometimes when I go back into the car and turn it on, the screen will stay down/off. The ECO start/stop function developed by Mercedes Benz reduces fuel consumption and emissions by switching off the engine when the vehicle comes to a standstill (e.g. Disconnect the wire and turn on the key. You can slow it down to 30 km/h without using brakes and clutch to solve the readiness monitors won’t reset issue. The engine restarts as soon as the driver's foot comes off the brake pedal.The intelligent ECO start/stop function adapts itself to the current driving scenario. Perform it for three minutes. When the ignition is switched off, all display messages are deleted apart from some high-priority display messages. Once the causes of the high-priority display messages have been rectified, the corresponding display messages are also deleted. If you change it before it fails it can be inexpensive and relatively easy to replace. WARNING: As time passes we are seeing more and more ignition lock failures on 123 and early 126, 201 and 124 chassis models. When the light comes on, you're supposed to take your vehicle in to a licensed dealer to get the oil changed, and they will reset the light for you. Mercedes-Benz cars have a service indicator light that will come on to tell you when it's time for an oil change. I'll turn it on and it will pop up and go to FM and some random channel. To keep everything running smoothly, Mercedes’ onboard computers monitor hundreds of individual systems, sensors and variables and make corrections as necessary to optimize performance, shifting, braking, traction, stability, safety and other vehicle parameters. 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