Facing frequent noises on your car has a tendency to be upsetting, a motor vehicle is so complicated that it is generally complicated to find its source and even more challenging to find the component that causes it. In case you too have previously faced a cold engine noise on your Volkswagen Polo 4, we can clearly support you. In reality, we chose to produce this content page to be able to examine the main causes of an engine that rattles when cold on your Volkswagen Polo 4. First we will check out engines that is rattling only at start up, then because of unsuitable oil and finally because of glow plugs.


The engine of my Volkswagen Polo 4 is rattling only when starting

If the engine of your Volkswagen Polo 4 produces a cold rattles, especially when starting and which ends rather quickly afterwards, it is possible that your engine lubrication is to blame. In reality, 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 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 Volkswagen Polo 4 should come back to normal operation because the lubrication of the engine will be done naturally, remember to check the condition of the engine.

Engine of my Volkswagen Polo 4 that rattles when cold because of too fluid oil

Another situation which can explain an engine which cold rattling on your Volkswagen Polo 4 is that during an oil change the selection of oil was not perfect, 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 picked, it is possible that when cold, the lubrication it allows is not adequate 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 Volkswagen Polo 4, do not think twice to swap it with the right oil.

Engine that rattles when cold on my Volkswagen Polo 4 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 Volkswagen Polo 4 glow plugs that are at the end of their life. In reality, a dead spark plug will induce the attached cylinder not to heat up and will cause a stronger rattles on an engine Volkswagen Polo 4, so think about diagnosing 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 revealed to you, the main reasons of an engine that cold slam on a car, do not think twice to consult our page specialized to your car to find more information on all the breakdowns related to your car.

If you have any further questions about the Volkswagen Polo 4, do not hesitate to consult our Volkswagen Polo 4 category.