Coming accross constant noises on your car will probably be annoying, a car is so sophisticated that it is most of the time challenging to find its origin and even more challenging to find the component that causes it. In case you too have already faced a cold engine noise on your Renault Laguna, we can clearly support you. Indeed, we decided to compose this article to be able to review the main causes of an engine that rattles when cold on your Renault Laguna. First we will look at engines that is rattling only when turned on, then because of unsuitable oil and finally because of glow plugs.


The engine of my Renault Laguna is rattling only when starting

If the engine of your Renault Laguna produces a cold rattles, specifically when starting and which disappear 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 Renault Laguna should go back to normal functions because the lubrication of the engine will be done naturally, remember to verify the condition of the engine.

Engine of my Renault Laguna that rattles when cold because of too fluid oil

Another possibility which can explain an engine which cold rattling on your Renault Laguna is that during an oil change the selection 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 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 Renault Laguna, do not be reluctant to replace it with the right oil.

Engine that rattles when cold on my Renault Laguna 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 Renault Laguna glow plugs that are defectives. Indeed, a dead spark plug will cause the linked cylinder not to heat up and will provoke a stronger rattles on an engine Renault Laguna, so take into consideration 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 described to you, the main reasons of an engine that cold slam on a car, do not be reluctant to consult our page dedicated to your car to find further info on all the breakdowns associated with your vehicle.

In the event that you have any additional questions about the Renault Laguna, do not hesitate to consult our Renault Laguna category.