Being the victim of regular noises on your car is likely to be distressing, a automobile is so complicated that it is most of the time challenging to discover its source and even more hard to find the component that triggers it. In case you too have already faced a cold engine noise on your Mercedes Classe C 4, we can surely support you. In fact, our team made the decision to publish this content to be able to review the main triggers of an engine that rattles when cold on your Mercedes Classe C 4. First we will take a look at engines that is rattling only when starting, then because of improper oil and finally because of glow plugs.


The engine of my Mercedes Classe C 4 is rattling only when starting

If the engine of your Mercedes Classe C 4 makes a cold rattles, specifically when starting and which ends fairly quickly afterwards, it is possible that your engine lubrication is responsible. In fact, the oil strainer (the component that sucks up the oil and makes it rise to the top of the engine) can be broken 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 Classe C 4 should come back to normal performance because the lubrication of the engine will be done naturally, remember to verify the condition of the engine.

Engine of my Mercedes Classe C 4 that rattles when cold because of too fluid oil

Another option which can justify an engine which cold rattling on your Mercedes Classe C 4 is that during an oil change the choice of oil was not best, indeed, engine oils differ on their viscosity, which we will compare 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 recommended by the manufacturer, if your engine clicking is strong or if it persists on your Mercedes Classe C 4, do not think twice to replace it with the right oil.

Engine that rattles when cold on my Mercedes Classe C 4 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 Classe C 4 glow plugs that are defectives. In fact, a dead spark plug will induce the associated cylinder not to heat up and will cause a stronger rattles on an engine Mercedes Classe C 4, so take into consideration testing the state of your spark plugs separately using a multimeter, it may be that only one is involved like all of them. Here, we have described to you, the main causes of an engine that cold slam on a car, do not think twice to browse our page dedicated to your car to find extra info on all the breakdowns related to your motor vehicle.

If you wish more tutorials on the Mercedes Classe C 4, go to our Mercedes Classe C 4 category.