You notice a starter motor noise on your Mercedes Classe A 4 once you start your vehicle. We can understand that this is not pleasant and that you have questions. Listening such a sound is not always a good indication, but it may also be nothing severe. To help you fix this issue, our team has chosen to produce this article to assist you in this research. First, we will explain how the starter motor works on your Mercedes Classe A 4, and then what starter motor noises you can encounter on your Mercedes Classe A 4.
Functioning and various information
Function of a starter motor on Mercedes Classe A 4
The starter motor is an electric motor whose single job is to start the engine unit of your vehicle. By a magnetic system and a “serial” technology, it will release an enormous torque that will allow it to drive the pistons of the engine that are subjected to enormous compression and an oil that provides additional resistance being not very fluid when cold.
It is completed by the “solenoid”. It is an electromagnet that goes under a 12 volt electric impulse to push the fork (link part between the “solenoid” and the electric motor of the starter) and thus engage the starter drive pinion on the engine flywheel. Following this action, once in engagement, the starter motor of your Mercedes Classe A 4 is activated and turns the drive pinion on the flywheel to start the engine.
How to avoid starter motor noises on Mercedes Classe A 4
- Do not run your starter too long
- Do not use a starter motor on Mercedes Classe A 4 with a tired battery
Even if your engine does not start because of tired glow plugs, for example, or because the weather conditions is too cold. You should not try to start for more than a few seconds or you will burn your starter motor.
Although when you have a battery that is tired, you always want to start your vehicle, the energy it is capable of holding may not be good enough to generate the power required by the starter motor to start your engine unit. Repeated attempts will pre-use your starter motor and if you do not solve the reason of your failure to start repeatedly, your starter may be the future element you will have to replace.
I notice noises from the starter motor of my Mercedes Classe A 4, what are the triggers?
I feel a loud noise from the starter of my Mercedes Classe A 4
If you listen to a starter motor noise on Mercedes Classe A 4 and you have the feeling that it is approaching a loud noise, it is conceivable that it is the starter motor gears that are at the source of it. In fact, often when the part has been dismantled for other repairs, its adjustment in relation to the engine flywheel may no longer be perfect, in which situation the gears will be worn down over time and will not slip and will no longer properly engage the engine when starting. Check the state of the drive pinion, if it is responsible of the starter motor noise on your Mercedes Classe A 4 change it.
If it is a noise in the front of your vehicle but it seems to you after examining not to come from your starter, browse this article about front end noise on Mercedes Classe A 4 which may give you other leads to remedy your noise issue.
I notice a clicking noise of the key running in my neiman but no noise at the starter motor of my Mercedes Classe A 4
If you notice a clicking noise at the starter motor of your Mercedes Classe A 4, there are two possible failures connected to this indicator. If you have in addition to the noise the motor is not running, it may be the “solenoid” is not supplied with energy. One of the most common ways to relaunch it is to hit it with a metal bar to remove the dust that blocks it. If that is not enough, it may be the neiman who is involved. You might have a issue with unplugged cable check your electrical installation. If after checking out this clicking noise on Mercedes Classe A 4 doesn’t come from your starter motor, check this article for more informations.
