Being the victim of frequent noises on your car has a tendency to be unpleasant, a car is so complex that it is most of the time complicated to determine its origin and even more problematic to find the component that triggers it. In case you too have already experienced a cold engine noise on your Volkswagen Passat 8, we can certainly support you. In reality, our team made the decision to write this content in order to examine the main triggers of an engine that rattles when cold on your Volkswagen Passat 8. First we will look at engines that is rattling only when turned on, then because of unsuitable oil and finally because of glow plugs.
The engine of my Volkswagen Passat 8 is rattling only when starting
If the engine of your Volkswagen Passat 8 generates a cold rattles, specifically when starting and which fades rather quickly afterwards, it is possible that your engine lubrication is at fault. In reality, 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 viscous. If this is your case, after a few tens of seconds the engine that slams your Volkswagen Passat 8 should come back to normal performance because the lubrication of the engine will be done normally, remember to check the condition of the engine.
Engine of my Volkswagen Passat 8 that rattles when cold because of too fluid oil
Another option which can justify an engine which cold rattling on your Volkswagen Passat 8 is that during an oil change the choice of oil was not ideal, in reality, 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 picked, it is possible that when cold, the lubrication it allows is not sufficient 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 Volkswagen Passat 8, do not hesitate to change it with the right oil.
Engine that rattles when cold on my Volkswagen Passat 8 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 Volkswagen Passat 8 glow plugs that are at the end of their life. In reality, a dead spark plug will induce the linked cylinder not to heat up and will create a stronger rattles on an engine Volkswagen Passat 8, so think about examining 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 explained to you, the main causes of an engine that cold slam on a car, do not hesitate to read our page dedicated to your car to find more details on all the breakdowns associated with your car.
If perhaps you have any additional questions about the Volkswagen Passat 8, do not hesitate to consult our Volkswagen Passat 8 category.
