What happens when you turn off the engine on a Mercedes?
When you turn the key off on your Mercedes diesel, you may have noticed that the engine will not quit immediately. In some cases it may even keep running a second or two after you have turned the key to the off position before it finally quits.
Why does my engine not shut off when the key is turned off?
This leak can be caused by one of the rubber fittings getting loose or accidently knocked off, or it can be caused by a leak somewhere else in your vacuum system (the most common on the 123 chassis is leaks in your door lock system). If your door locks stopped working at the same time the engine shut-off failed you will know the two are related.
Where does the vacuum go when the key is turned off?
The vacuum then goes back to your ignition key assembly under the dash and back out to the shut-off valve on the back of your injection pump. When you turn your key OFF vacuum is routed through the back of the switch and on to the shutoff valve.
Why does my car engine not turn off when I remove the key?
Your engine will continue to run even when you remove the key from the ignition because the fuel pump is not shutting off. This problem is typically caused by a faulty fuel pump relay or a defective ignition switch. In this article, we take a look at why your engine won’t turn off when removing the key and what you can do to stop the engine.
Where is the vacuum valve on a Mercedes 300D?
In all Mercedes diesel engines from the first 300D in 1975 up to the mid 1990’s, vacuum (suction) is used to turn the engine off – not electricity! In simple terms – there is a valve mounted on the rear or side of the diesel fuel injection pump.
Why does my car stop when I press the stop button?
On vehicles equipped with the Start/Stop convenience feature, the engine may not stop when you press the STOP button. A defective Push Start button can cause this problem. If the button stops working, it may need to be replaced.
When you turn the key off on your Mercedes diesel, you may have noticed that the engine will not quit immediately. In some cases it may even keep running a second or two after you have turned the key to the off position before it finally quits.
Your engine will continue to run even when you remove the key from the ignition because the fuel pump is not shutting off. This problem is typically caused by a faulty fuel pump relay or a defective ignition switch. In this article, we take a look at why your engine won’t turn off when removing the key and what you can do to stop the engine.
In all Mercedes diesel engines from the first 300D in 1975 up to the mid 1990’s, vacuum (suction) is used to turn the engine off – not electricity! In simple terms – there is a valve mounted on the rear or side of the diesel fuel injection pump.
On vehicles equipped with the Start/Stop convenience feature, the engine may not stop when you press the STOP button. A defective Push Start button can cause this problem. If the button stops working, it may need to be replaced.