Facing repeated noises on your car has a tendency to be unpleasant, a motor vehicle is so sophisticated that it is generally hard to identify its origin and even more challenging to find the component that motives it. In case you too have previously experienced a cold engine noise on your Mercedes C class, we can definitely support you. In fact, our team decided to write this document in order to analyze the main motives of an engine that rattles when cold on your Mercedes C class. First we will check out engines that is rattling only at start up, then because of improper oil and finally because of glow plugs.
The engine of my Mercedes C class is rattling only when starting
If the engine of your Mercedes C class produces a cold rattles, especially when starting and which fades fairly quickly afterwards, it is possible that your engine lubrication is at fault. In fact, the oil strainer (the component that sucks up the oil and makes it rise to the top of the engine) can be malfunctioned and therefore take some time to make the oil rise when it is still very thick. If this is your case, after a few tens of seconds the engine that slams your Mercedes C class should return to normal functions because the lubrication of the engine will be done naturally, remember to check the condition of the engine.
Engine of my Mercedes C class that rattles when cold because of too fluid oil
Another possibility which can explain an engine which cold rattling on your Mercedes C class is that during an oil change the selection of oil was not best, indeed, engine oils differ on their viscosity, which we will contrast with the “W” value, the higher this value is the thicker the oil will be and vice versa. If a too fluid oil has been selected, it is possible that when cold, the lubrication it allows is not good enough to limit engine slamming, compare the oil used and the oil advised by the manufacturer, if your engine clicking is strong or if it persists on your Mercedes C class, do not think twice to swap it with the right oil.
Engine that rattles when cold on my Mercedes C class cause of the glow plugs
If you have a diesel engine, your engine is rattling when cold, and it has complication starting when it is cold, it may be your Mercedes C class glow plugs that are at the end of their life. In fact, a dead spark plug will induce the connected cylinder not to heat up and will cause a stronger rattles on an engine Mercedes C class, so consider testing the state of your spark plugs individually using a multimeter, it may be that only one is involved like all of them. Here, we have listed to you, the main factors of an engine that cold slam on a car, do not think twice to browse our page specialized to your car to find more info on all the breakdowns related to your vehicle.
If you want more guides on the Mercedes C class, go to our Mercedes C class category.
