Being the victim of regular noises on your car tends to be distressing, a vehicle is so elaborate that it is most of the time challenging to locate its source and even more problematic to find the part that triggers it. In the event you too have previously came accross a cold engine noise on your Mercedes Classe A, we can definitely help you. Indeed, our editorial staff made the decision to produce this article in order to examine the main triggers of an engine that rattles when cold on your Mercedes Classe A. First we will check out engines that is rattling only when starting, then because of unsuitable oil and finally because of glow plugs.


The engine of my Mercedes Classe A is rattling only when starting

If the engine of your Mercedes Classe A makes a cold rattles, specifically when starting and which ends quickly afterwards, it is possible that your engine lubrication is at fault. Indeed, the oil strainer (the part 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 viscous. If this is your situation, after a few tens of seconds the engine that slams your Mercedes Classe A should return to normal operation because the lubrication of the engine will be done normally, make sure to verify the condition of the engine.

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

Another option which can explain an engine which cold rattling on your Mercedes Classe A is that during an oil change the selection of oil was not best, in fact, engine oils differ on their viscosity, which we will review 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 chosen, 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 suggested by the manufacturer, if your engine clicking is strong or if it persists on your Mercedes Classe A, do not be reluctant to replace it with the right oil.

Engine that rattles when cold on my Mercedes Classe A cause of the glow plugs

If you have a diesel engine, your engine is rattling when cold, and it has difficulty starting when it is cold, it may be your Mercedes Classe A glow plugs that are nearly good to be changed. Indeed, a dead spark plug will cause the attached cylinder not to heat up and will bring about a stronger rattles on an engine Mercedes Classe A, so think about testing the state of your spark plugs independently using a multimeter, it may be that only one is concerned like all of them. Here, we have listed to you, the main factors of an engine that cold slam on a car, do not be reluctant to consult our page dedicated to your car to find further details on all the breakdowns linked to your vehicle.

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