Being the victim of regular noises on your car tends to be upsetting, a car is so elaborate that it is most of the time tricky to track down its origin and even more challenging to find the part that triggers it. In case you too have already experienced a cold engine noise on your Mercedes Classe B, we can clearly help you. In reality, we decided to publish this content page to be able to review the main triggers of an engine that rattles when cold on your Mercedes Classe B. First we will take a look at engines that is rattling only at start up, then because of unsuitable oil and finally because of glow plugs.

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

If the engine of your Mercedes Classe B generates a cold rattles, especially when starting and which disappear rather quickly afterwards, it is possible that your engine lubrication is at fault. In reality, 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 time to make the oil rise when it is still very thick. If this is your situation, after a few tens of seconds the engine that slams your Mercedes Classe B should go back to normal functions because the lubrication of the engine will be done naturally, make sure examine the condition of the engine.

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

Another situation which can explain an engine which cold rattling on your Mercedes Classe B is that during an oil change the selection of oil was not ideal, in fact, 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 chosen, it is possible that when cold, the lubrication it allows is not 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 Classe B, do not think twice to change it with the right oil.

Engine that rattles when cold on my Mercedes Classe B 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 B glow plugs that are nearly good to be changed. In reality, a dead spark plug will trigger the attached cylinder not to heat up and will bring about a stronger rattles on an engine Mercedes Classe B, so take into account evaluating the state of your spark plugs independently using a multimeter, it may be that only one is involved like all of them. Here, we have described to you, the main motives of an engine that cold slam on a car, do not think twice to have a look at our page specialized to your car to find extra info on all the breakdowns associated with your car.

Whenever you have any additional questions about the Mercedes Classe B, do not hesitate to consult our Mercedes Classe B category.