Recent vehicles are more and more equipped with new technologies, apart from the comfort of use it can bring, technology also has the advantage of saving fuel or reducing the pollution emitted by our vehicles. This is exactly the subject of our article of the day, we are going to look at the problems of the lambda sensor on BMW 5 Series , this sensor also known as oxygen sensor plays an necessary purpose. To find out, first, we are going to identify what a lambda probe is utilized for, then, what are the lambda sensor problems on BMW 5 Series and how to fix them.
What is a lambda role on BMW 5 Series?
So we start our content with the interest of a lambda sensor on BMW 5 Series , we will first see what is the purpose of this probe and then how it functions.
Role of a lambda sensor on BMW 5 Series
First produced by Volvo in the 1970s, it began to appear on our cars in the 1990s with the first EURO 1 emission requirements. Also called oxygen sensor on BMW 5 Series , its mission is to regulate the amount of oxygen in the exhaust gases, this will enable the engine to modify the air/fuel mixture to reduce the pollution emitted by the car and lower the car’s fuel consumption.
Lambda sensor procedure on BMW 5 Series
Before explaining you the different problems of lambda probe on BMW 5 Series , we will look a little more in outline at its working to allow you to discover precisely how it functions and thus to consider more serenely the correction of a problem associated with it.
As we told you, a lambda probe has the job of controlling the amount of oxygen present in the exhaust gases . One could naively believe that this data is determined upstream of the combustion but it is on the contrary measured at the engine outlet . With the EURO 1 standard there was just one lambda sensor required before the catalyst, but with the arrival of more drastic requirements there are now 2 lambda sensors, one before and one after the catalyst . The interest is to have more precise data by compiling the two probes. These data are sent to the ECU which will adjust the quantity of air and gasoline injected into the engine to optimize the combustion .
Lambda sensor problem on BMW 5 Series
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At last, we are now going to attack the section you are undoubtedly most enthusiastic about this content, how to proceed if you have a lambda sensor problem on BMW 5 Series . In a first step we will see how to identify a lambda sensor HS and in a second step how to change it.
How to know if a lambda sensor on BMW 5 Series is HS
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It is necessary to know that a lambda sensor has in general a lifetime of 150 000 km , this info can differ according to the year of your BMW 5 Series, your driving, and the good functioning of your engine. A poorly taken care of engine that emits unburned gases may completely damaged your lambda sensor. One of the clues that can alert you of a defective lambda sensor on BMW 5 Series might be the engine light turns on, if you want to turn off the engine light of your BMW 5 Series, do not think twice to consult our dedicated content to see the procedure to follow. The only effective way to ensure that you have a lambda sensor problem on your BMW 5 Series and to pass your car to the diagnostic case, for that do not think twice to seek advice from our tutorial which explains you BMW 5 Serieshow to read the fault code of a BMW 5 Series. Take note that if you have problems with one of your lambda sensors, the just solution to resolve them will be to change the defective sensor.
How to change a lambda sensor on BMW 5 Series?
And at last, we are going to concentrate on the correction of lambda sensor problems on BMW 5 Series , by detailing how to replace a lambda sensor.
The replacement of a lambda sensor is quite very easy to carry out and you will be able to do it yourself with a lowest of tools and mechanical knowledge. A lambda sensor is worth between 25 and 50€ , it is better to change the 2 lambda sensors present upstream and downstream of your catalytic converter because if one of them is defective the second one risks to drop you fairly quickly. To replace it, it will be necessary to put your BMW 5 Series on candles and at the level of your catalyst unscrew your probes, disconnect them, reconnect them and screw the new ones . Once re-connected, you should not have any more problems with your lambda sensor on BMW 5 Series.
In the event that you have any further questions about the BMW 5 Series, do not hesitate to consult our BMW 5 Series category.
