Facing repeated noises on your car has a tendency to be distressing, a car is so sophisticated that it is generally difficult to identify its source and even more challenging to find the part that causes it. In case you too have previously experienced a cold engine noise on your Mazda 3, we can clearly support you. Indeed, we decided to produce this article in order to examine the main causes of an engine that rattles when cold on your Mazda 3. First we will take a look at engines that is rattling only at start up, then because of unsuitable oil and finally because of glow plugs.


The engine of my Mazda 3 is rattling only when starting

If the engine of your Mazda 3 generates a cold rattles, especially when starting and which ends rather quickly afterwards, it is possible that your engine lubrication is to blame. 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 some 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 Mazda 3 should go back to normal performance because the lubrication of the engine will be done naturally, make sure to check the condition of the engine.

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

Another situation which can justify an engine which cold rattling on your Mazda 3 is that during an oil change the selection of oil was not ideal, in reality, 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 selected, it is possible that when cold, the lubrication it allows is not sufficient to limit engine slamming, compare the oil used and the oil advised by the manufacturer, if your engine clicking is strong or if it persists on your Mazda 3, do not think twice to change it with the right oil.

Engine that rattles when cold on my Mazda 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 Mazda 3 glow plugs that are at the end of their life. Indeed, a dead spark plug will induce the attached cylinder not to heat up and will trigger a stronger rattles on an engine Mazda 3, so consider evaluating 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 factors of an engine that cold slam on a car, do not think twice to browse our page dedicated to your car to find extra details on all the breakdowns linked to your automobile.

If you need more guides on the Mazda 3, go to our Mazda 3 category.