It's not the first time that your Mercedes Cls-Class stalls when you try to start and you have no idea why. Even if your car starts after several attempts, it is essential to look into the problem in order to solve the breakdown as soon as possible, in order to avoid a bigger problem.
The idea of ​​this article is to help you see things more clearly and try to understand what could be causing you inconvenience. We are going to discuss the various probable breakdowns that you are likely to encounter so that you can remedy them, and prevent your Mercedes Cls-Class from stalling when starting.


Reasons for stalling at start-up for a Mercedes Cls Class

We are going to structure this article with two different paragraphs, one detailing the mechanical reasons which can cause your Mercedes Cls-Class to stall when starting, then the 2nd the electronic reasons.

1: Mechanical causes that cause your Mercedes Cls-Class to stall

We are going to check, in this paragraph, the various parts which could cause you to stall at start-up if ever they were damaged.
The idle actuator: Its role is to regulate the air in the engine when it is idling so that it does not choke or stall. If you ever feel that your engine grazes a little before stalling, it is quite possible that this is the cause.
Battery : If your car starts without a problem and then stalls, the battery is out of the question. It will simply be the cause if your Mercedes C-Class stalls immediately after switching on.
In this situation, check carefully on that side.
Also remember to simply consult your dashboard to get information about the warning lights that may be on when your Mercedes Cls-Class stalls when starting.
Also, remember to manually check the cleanliness of the parts of your Mercedes Cls-Class. Indeed, cleaning the parts (filters, injection pump, pressure regulator) could help you more quickly than expected. This is sometimes the cause of frequent small breakdowns.

2: Electronic causes that cause your Mercedes Cls-Class to stall

We are going to see here the probable electronic malfunctions which could cause you problems and cause your Mercedes Cls-Class to stall at start-up, but in the majority of cases the causes are, as we have mentioned, of mechanical origin.
BSM case: This is the information exchange platform for your Mercedes Cls Class. It is unlikely that this is the cause because it is rather reliable. Most of the breakdowns linked to this box are cars that stall while you are driving.
BSI box: The BSI unit will make it possible to centralize information and translate all these different languages ​​for the overall management of vehicle functions. This will sometimes be the cause only if your Mercedes Cls-Class does not start at all.
Calculator: This is the central component of an assortment known as the “on-board system”. The primary function of an ECU is to provide the correct "weight" of fuel for each stroke of the engine piston. There are various on-board systems that electronically manage the various functions of the vehicle. There are between 30 and 80 on each car! Be careful with this part because some professionals tend to incriminate this part because they are unable to find the real fault. It would be enough for one of its sensors to be broken on your Mercedes Classe Cls and for the computer to be suspected. If possible, consult a second professional if ever you are asked to replace this part because it is expensive.

TDC sensor: Its role is to determine the rpm on which your Mercedes C-Class is located so that the fuel is sent accordingly. This one could be worn, or simply dirty. Check its condition to be sure.
Alternator: Theoretically this should be out of the question, because it is thanks to it that the battery starts the car. However, it may be slightly damaged and it may not be able to recharge the battery, which therefore does not power the car. Your Mercedes Classe Cls launches but does not stay on. This may be the reason for your Mercedes Cls Class stalling when starting.

3: Conclusion on a Mercedes Cls-Class which stalls at start-up

Here are the many parts that can cause your Mercedes Cls-Class to stall when starting. It is important to first ensure that the parts are just clean on your Mercedes Cls Class. Then, do extensive research on each part if necessary to really know their necessity and thus determine if they are in question or not. Do not hesitate to call on various professional opinions in order not to trust only one person.