Do you hear an engine noise on your Mercedes Classe S when you drive your vehicle? We know that this is very stressing and that you are wondering. Finding out such a noise is not always a good signal, but it may also be nothing major. To help you resolve this problem, our team has made a decision to compose this content page to assist you in this research. In order to conduct 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 S metal type.
I hear a clicking engine noise Mercedes Classe S
In case you acknowledge a clicking engine noise on your Mercedes Classe S, and that this noise is close to a click, you will have to discern the source location 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 hear a clicking noise coming from my high engine
If you hear an engine noise on Mercedes Classe S, and this noise is based at the top of the engine, it means that it is based at your cylinder head and accompanying elements. Two elements can be the origins of these engine noises on Mercedes Classe S. Either the hydraulic pushers, generally it is because of their defective “hydraulic catch-up” system that we will hear these clicking noises, often when cold and vanishes 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 swapping them.
I hear a noise coming from the bottom engine of my Mercedes Classe S
If you have found the area of source of engine noise on Mercedes Classe S 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 mechanics will advise you to replace the motor of your Mercedes Classe S.
I hear an engine clicking noise on Mercedes Classe S coming from combustion
Finally, if you think that this clicking noise is related to the combustion of your engine, there are three possible 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 control the timing of the various engine components to provide good combustion. And finally, the most classic cause, comes from your injection, which is either obstructed or one or more injectors is affected. In this case, do not hesitate to consult this content page which deals in detail with the distinct injector noises on Mercedes Classe S.
Hissing noise / engine friction Mercedes Classe S
Engine noise Mercedes Classe S 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 discover the exact origin 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 identify the location of origin of the noise. The three elements 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 S when releasing or depressing the clutch
In the case that you perceive engine noise on Mercedes Classe S, but this noise appears mainly when you release or depress your clutch pedal, in this instance it is very likely that your release bearing is worn. Indeed, a worn release bearing will emit a noise close to a bell noise. To have more info about this noise and if you have managed to verify that the release bearing is indeed the trigger of your trouble, direction here, to find a complete file on release bearing sounds on Mercedes Classe S.
Engine noise Mercedes Classe S close to a friction
In the case that you hear a motor noise on your Mercedes Classe S, and, that this noise is close to a friction, it is likely that one of your belts or one of the components that triggers it is the source of your problems.Often, we will start to hear a motor noise on Mercedes Classe S, 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 problem. So bear in mind to check their state and go to your mechanic to swap the elements in question. If you have been able to target the noise as coming from the belts and you want more details about it, go look at this content page on belt noise on Mercedes Classe S for a complete guide.
Metal motor noise Mercedes Classe S
In the case that you hear an engine noise on Mercedes Classe S 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 connected with damaged sprockets. Try to check that this noise comes from the transmission, if this is the case, as soon as possible go to your auto technician 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 pass on roads in poor state. Check the state of your silentblocks and swap them if necessary. If you want to have more info about rubber mounts noises on Mercedes Classe S, examine this content page which gives you more info about the distinct types of noise and their origins.
