Do you experience an engine noise on your Mercedes Classe A 4 when you drive your vehicle? We understand that this is very stressing and that you are questioning. Experiencing such a noise is not always a good sign, but it may also be nothing severe. To support you fix this trouble, our team has chosen to compose this content to assist you in this investigation. In order to carry out this research as accurately as possible, we will first focus on clicking noises, then on whistling noises and, finally, on engine noises on Mercedes Classe A 4 metal type.
I experience a clicking engine noise Mercedes Classe A 4
In case you experience a clicking engine noise on your Mercedes Classe A 4, and that this noise is close to a click, you will have to find the origin place of it to be able to know the cause of it. You will need a mechanical stethoscope or a large screwdriver to locate the original area of these noises.
I experience a clicking noise coming from my high engine
If you experience an engine noise on Mercedes Classe A 4, 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 4. Either the hydraulic pushers, generally it is because of their faulty “hydraulic catch-up” system that we will experience 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 cases like this, consider changing them.
I experience a noise coming from the bottom engine of my Mercedes Classe A 4
If you have established the region of origin of engine noise on Mercedes Classe A 4 that comes from your low engine, it may be that your rods or piston shafts are the triggers. In both situations, the long-term risk is engine failure. These two fixes are very difficult and most technicians will advise you to swap the motor of your Mercedes Classe A 4.
I experience an engine clicking noise on Mercedes Classe A 4 coming from combustion
Finally, if you think that this clicking noise is connected to the combustion of your engine, there are three possible triggers of it. Examine the condition 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 control the timing of the various engine elements to induce good combustion. And finally, the most classic cause, comes from your injection, which is either clogged or one or more injectors is injured. In this case, do not hesitate to consult this content which deals in detail with the several injector noises on Mercedes Classe A 4.
Hissing noise / engine friction Mercedes Classe A 4
Engine noise Mercedes Classe A 4 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 verify the condition and try to locate the exact source of this noise by positioning someone at the engine at idle, and if this noise is more likely to show up in high rpm, accelerate and position someone at the engine block to determine the area 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 4 when releasing or depressing the clutch
In the case that you detect engine noise on Mercedes Classe A 4, but this noise occurs 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 info about this noise and if you have managed to validate that the release bearing is indeed the reason of your trouble, direction here, to find a complete file on release bearing sounds on Mercedes Classe A 4.
Engine noise Mercedes Classe A 4 close to a friction
In case that you experience a motor noise on your Mercedes Classe A 4, and, that this noise is close to a friction, it is likely that one of your belts or one of the elements that triggers it is the origin of your problems.Often, we will start to experience a motor noise on Mercedes Classe A 4, 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 take into account to verify their condition and go to your technician to replace 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, browse this content on belt noise on Mercedes Classe A 4 for a complete guide.
Metal motor noise Mercedes Classe A 4
In case that you experience an engine noise on Mercedes Classe A 4 and this noise is similar to metal noise, it is possible that this noise comes from your gearbox or clutch. Indeed, a metallic noise in the engine block is often associated with damaged sprockets. Try to verify that this noise comes from the transmission, if this is the case, as soon as possible go to your motor 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 each time your engine moves, either because of a change of pace (acceleration or braking) or, when you drive on roads in poor condition. Examine the condition of your silentblocks and replace them if necessary. If you want to have more info about rubber mounts noises on Mercedes Classe A 4, read this content which gives you more info about the several types of noise and their origins.
