Do you hear an engine noise on your Mercedes Classe A 3 when you drive? We can understand that this is very worrying and that you are questioning. Listening such a noise is not always a good indication, but it may also be nothing severe. To support you resolve this trouble, our team has decided to compose this content page to assist you in this research. In order to carry out this research as accurately as possible, we will first concentrate on clicking noises, then on whistling noises and, finally, on engine noises on Mercedes Classe A 3 metal type.
I hear a clicking engine noise Mercedes Classe A 3
In case you find out a clicking engine noise on your Mercedes Classe A 3, and that this noise is close to a click, you will have to identify the origin location of it to be able to know the reason of it. You will need a mechanical stethoscope or a large screwdriver to locate the original area of these noises.
I hear a clicking noise coming from my high engine
If you hear an engine noise on Mercedes Classe A 3, and this noise is located at the top of the engine, it means that it is located at your cylinder head and accompanying parts. Two parts can be the origins of these engine noises on Mercedes Classe A 3. Either the hydraulic pushers, generally it is because of their faulty “hydraulic catch-up” system that we will hear these clicking noises, often when cold and disappears when hot. Otherwise, it is your the play of your rocker arms or their state of wear that is the issue. In such a case, reflect on swapping them.
I hear a noise coming from the bottom engine of my Mercedes Classe A 3
If you have determined the area of origin of engine noise on Mercedes Classe A 3 that comes from your low engine, it may be that your rods or piston shafts are the triggers. In both scenarios, the long-term risk is engine failure. These two repairs are very difficult and most technicians will advise you to swap the motor of your Mercedes Classe A 3.
I hear an engine clicking noise on Mercedes Classe A 3 coming from combustion
Finally, if you have the feeling that this clicking noise is related to the combustion of your engine, there are three plausible triggers of it. Check the state of your glow plugs which if worn can hinder the proper combustion of the fuel mixture. Then, your timing belt may be shifted and may poorly manage the timing of the various engine parts to induce good combustion. And finally, the most classic reason, comes from your injection, which is either clogged or one or more injectors is injured. In this case, do not be reluctant to consult this content page which deals in detail with the distinct injector noises on Mercedes Classe A 3.
Hissing noise / engine friction Mercedes Classe A 3
Engine noise Mercedes Classe A 3 close to a bearing
If it is close to a squeaking noise you may have one of the bearings of your engine accessory parts that are reached. So check the state and try to locate the exact origin of this noise by positioning someone at the engine at idle, and if this noise is more likely to appear in high rpm, accelerate and position someone at the engine block to discern the region of origin of the noise. The three parts whose bearings are often at the origin of these noises are the water pump, the injection pump and the oil pump.
Engine noise Mercedes Classe A 3 when releasing or depressing the clutch
In the case that you find out engine noise on Mercedes Classe A 3, but this noise takes place mainly when you release or depress your clutch pedal, in this case it is very likely that your release bearing is worn. Indeed, a worn release bearing will make a noise close to a bell noise. To have more details about this noise and if you have managed to confirm that the release bearing is indeed the trigger of your concerns, direction here, to find a complete file on release bearing sounds on Mercedes Classe A 3.
Engine noise Mercedes Classe A 3 close to a friction
In the event that you hear a motor noise on your Mercedes Classe A 3, and, that this noise is close to a friction, it is likely that one of your belts or one of the parts that triggers it is the origin of your concerns.Often, we will start to hear a motor noise on Mercedes Classe A 3, close to a friction when one of the belts is worn out or when one of the related parts like your alternator, or your tensioner roller is the trouble. So please remember to check their state and go to your auto mechanic to swap the parts in question. If you have been able to target the noise as coming from the belts and you want more details about it, have a look at this content page on belt noise on Mercedes Classe A 3 for a complete guide.
Metal motor noise Mercedes Classe A 3
In the event that you hear an engine noise on Mercedes Classe A 3 and this noise is similar to metal noise, it is plausible that this noise comes from your gearbox or clutch. Indeed, a metallic noise in the engine block is often connected with damaged sprockets. Try to check that this noise comes from the transmission, if this is the case, fairly quickly go to your auto mechanic or you would get a break down. Finally, the second possibility is that your silent engine blocks or rubber mounts may be dead. This triggers a metallic noise every time your engine moves, either because of a change of pace (acceleration or braking) or, when you pass on roads in poor state. Check the state of your silentblocks and swap them if necessary. If you want to have more details about rubber mounts noises on Mercedes Classe A 3, go through this content page which gives you more details about the distinct types of noise and their origins.
