Facing frequent noises on your car tends to be unpleasant, a motor vehicle is so complicated that it is generally challenging to find its origin and even more challenging to find the component that causes it. In the event you too have already came accross a cold engine noise on your Opel Astra, we can clearly support you. Indeed, our team decided to compose this article content to be able to analyze the main causes of an engine that rattles when cold on your Opel Astra. First we will check out engines that is rattling only when starting, then because of unsuitable oil and finally because of glow plugs.


The engine of my Opel Astra is rattling only when starting

If the engine of your Opel Astra makes a cold rattles, specifically when starting and which ends quickly afterwards, it is possible that your engine lubrication is responsible. Indeed, 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 some 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 Opel Astra should go back to normal functions because the lubrication of the engine will be done normally, make sure to check the condition of the engine.

Engine of my Opel Astra that rattles when cold because of too fluid oil

Another situation which can justify an engine which cold rattling on your Opel Astra is that during an oil change the choice of oil was not perfect, 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 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 Opel Astra, do not think twice to change it with the right oil.

Engine that rattles when cold on my Opel Astra 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 Opel Astra glow plugs that are nearly good to be changed. Indeed, a dead spark plug will cause the attached cylinder not to heat up and will cause a stronger rattles on an engine Opel Astra, so think about testing 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 explained to you, the main causes of an engine that cold slam on a car, do not think twice to have a look at our page dedicated to your car to find further info on all the breakdowns associated with your vehicle.

Whenever you have any additional questions about the Opel Astra, do not hesitate to consult our Opel Astra category.