Coming accross regular noises on your car is likely to be unpleasant, a motor vehicle is so complex that it is most of the time hard to identify its origin and even more challenging to find the part that causes it. In case you too have previously faced a cold engine noise on your Audi A2, we can clearly support you. In fact, our editorial staff chose to publish this document in order to analyze the main causes of an engine that rattles when cold on your Audi A2. 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 Audi A2 is rattling only when starting
If the engine of your Audi A2 generates a cold rattles, specifically when starting and which fades rather quickly afterwards, it is possible that your engine lubrication is responsible. In fact, the oil strainer (the part that sucks up the oil and makes it rise to the top of the engine) can be harmed 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 Audi A2 should return to normal performance because the lubrication of the engine will be done naturally, remember to examine the condition of the engine.
Engine of my Audi A2 that rattles when cold because of too fluid oil
Another situation which can explain an engine which cold rattling on your Audi A2 is that during an oil change the selection of oil was not ideal, indeed, 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 adequate 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 Audi A2, do not be reluctant to replace it with the right oil.
Engine that rattles when cold on my Audi A2 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 Audi A2 glow plugs that are at the end of their life. In fact, a dead spark plug will induce the connected cylinder not to heat up and will trigger a stronger rattles on an engine Audi A2, so take into account diagnosing 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 revealed to you, the main factors of an engine that cold slam on a car, do not be reluctant to read our page dedicated to your car to find more info on all the breakdowns linked to your vehicle.
If perhaps you have any additional questions about the Audi A2, do not hesitate to consult our Audi A2 category.
