Modern vehicles are more and more equipped with new technologies, apart from the comfort of use it can bring, technology as well has the advantage of saving fuel or reducing the pollution released by our vehicles. This is exactly the subject matter of our article content of the day, we are going to look at the problems of the lambda sensor on Mercedes C class , this sensor as well called oxygen sensor plays an essential purpose. To find out, first, we are going to find out what a lambda probe is utilized for, then, what are the lambda sensor problems on Mercedes C class and how to solve them.
What is a lambda purpose on Mercedes C class?
So we begin our article with the benefit of a lambda sensor on Mercedes C class , we will first see what is the task of this probe and then how it functions.
Role of a lambda sensor on Mercedes C class
First developed by Volvo in the 1970s, it began to appear on our cars in the 1990s with the first EURO 1 emission specifications. As well called oxygen sensor on Mercedes C class , its task is to regulate the amount of oxygen in the exhaust gases, this will enable the engine unit to modify the air/fuel mixture to reduce the pollution released by the car and reduce the car’s fuel consumption.
Lambda sensor operation on Mercedes C class
Before describing you the different problems of lambda probe on Mercedes C class , we will look a little more in detail at its working to allow you to understand exactly how it functions and thus to consider more serenely the correction of a problem associated with it.
As we informed you, a lambda probe has the task of controlling the amount of oxygen present in the exhaust gases . One could naively think that this data is measured 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 specifications there are now 2 lambda sensors, one before and one after the catalyst . The benefit is to have more exact data by compiling the two probes. These data are sent to the ECU which will modify the quantity of air and gasoline injected into the engine unit to improve the combustion .
Lambda sensor problem on Mercedes C class
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At last, we are now going to attack the section you are obviously most keen on this article, what to do if you have a lambda sensor problem on Mercedes C class . In a first step we will find out how to find a lambda sensor HS and in a second step how to change it.
How to know if a lambda sensor on Mercedes C class is HS
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It is essential to know that a lambda sensor has generally speaking a lifetime of 150 000 km , this statistics can differ according to the year of your Mercedes C class, your driving, and the good functioning of your engine unit. A poorly taken care of engine unit that emits unburned gases may forever damaged your lambda sensor. One of the clues that can warn you of a faulty lambda sensor on Mercedes C class may be the engine unit light comes on, if you want to turn off the engine light of your Mercedes C class, do not think twice to consult our dedicated article to see the procedure to follow. The only effective technique to be sure that you have a lambda sensor problem on your Mercedes C class and to complete your car to the diagnostic case, for that do not think twice to seek advice from our guide which explains you Mercedes C classhow to read the fault code of a Mercedes C class. Please be aware that if you have problems with one of your lambda sensors, the just solution to solve them will be to change the faulty sensor.
How to change a lambda sensor on Mercedes C class?
And at last, we are going to focus on the correction of lambda sensor problems on Mercedes C class , by describing how to replace a lambda sensor.
The replacement of a lambda sensor is quite basic to accomplish and you will have the ability to do it yourself with a minimal of tools and mechanical expertise. 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 faulty the second one risks to drop you fairly quickly. To replace it, it will be required to put your Mercedes C class 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 Mercedes C class.
If you wish more guides on the Mercedes C class, go to our Mercedes C class category.
