Coming accross frequent noises on your car tends to be distressing, a motor vehicle is so sophisticated that it is most of the time tricky to identify its source and even more complicated to find the part that motives it. In case you too have previously came accross a cold engine noise on your Volkswagen Polo 3, we can definitely support you. Indeed, our team made the decision to publish this article in order to inspect the main motives of an engine that rattles when cold on your Volkswagen Polo 3. First we will check out engines that is rattling only at start up, then because of improper oil and finally because of glow plugs.


The engine of my Volkswagen Polo 3 is rattling only when starting

If the engine of your Volkswagen Polo 3 produces a cold rattles, specifically when starting and which fades rather quickly afterwards, it is possible that your engine lubrication is responsible. 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 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 Volkswagen Polo 3 should come back to normal operation because the lubrication of the engine will be done naturally, make sure to check the condition of the engine.

Engine of my Volkswagen Polo 3 that rattles when cold because of too fluid oil

Another situation which can explain an engine which cold rattling on your Volkswagen Polo 3 is that during an oil change the choice of oil was not best, indeed, engine oils differ on their viscosity, which we will contrast 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 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 3, do not think twice to replace it with the right oil.

Engine that rattles when cold on my Volkswagen Polo 3 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 3 glow plugs that are defectives. Indeed, a dead spark plug will trigger the linked cylinder not to heat up and will bring about a stronger rattles on an engine Volkswagen Polo 3, so take into consideration testing the state of your spark plugs separately using a multimeter, it may be that only one is concerned like all of them. Here, we have listed to you, the main causes of an engine that cold slam on a car, do not think twice to browse our page specialized to your car to find extra info on all the breakdowns associated with your car.

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