Some maintenance actions such as changing the engine unit oil may seem evident and very important, while others such as changing the gearbox oil from its Mercedes Benz CLS Class may seem less automatic. Nevertheless, produce no mistake, changing the gearbox is just as important as changing the engine unit oil. This content will describe the role of the gearbox oil, then, why it is essential to change the gearbox of your Mercedes Benz CLS Class, and finally, how to change the gearbox oil of a Mercedes Benz CLS Class .

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Role of gearbox oil on a Mercedes Benz CLS Class

So we start our content with the role of gearbox oil on a Mercedes Benz CLS Class. The objective of this short introduction is to produce you understand the benefit of this fluid which guarantees the good performing of your car. The gearbox of your car has the objective to demultiply the power transmitted by the engine unit and send it back to your wheels . It is done up of pinions and gears that will allow the wheels to rotate at different speeds depending on the curves and the gear engaged. It will work with the help of an axle and a differential. All these parts will need to be firmly lubricate to function correctly, limit friction and tolerate the high temperatures produced by the engine unit and friction. Your transmission oil has a high viscosity and will prevent the formation of filings or gear breakage, so it is necessary to the correct performing of the gearbox.

Why replacing the gearbox oil from a Mercedes Benz CLS Class?

Now we’ll discover what’s the point of draining the gearbox oil of your Mercedes Benz CLS Class?

Benefit of gearbox oil changing Mercedes Benz CLS Class

There are several interests to change the gearbox of your car repeatedly, we will list them and detail them below:

  • After a while, the oil will lose its viscosity because of friction and temperature rise, which will cause less lubrication of the gears and pinions and therefore risk to break some of them.
  • Same as viscosity, time and temperature rise will lower the oil resistance to the engine unit temperature, So it will fluidize much more easily when the engine heats up, which is not good for your gearbox.
  • Accumulation of metallic residues: Finally, regardless if you always have a quality oil, a gearbox is an component that wears out and releases iron filings with friction, the oil will pick them up and if it builds up too much these residues can get into gears and break them.

When to do the gearbox oil change on a Mercedes Benz CLS Class?

Whether you want to do an automatic or manual gearbox oil change on Mercedes Benz CLS Class or strong> the process is not similar, however, dealers do not give mileage recommendations to change the oil in your gearbox, on the other hand when you do an intervention on the gearbox it is advisable to change it, otherwise here are the causes to produce you think about doing this oil change.

Oil change for manual gearbox Mercedes Benz CLS Class

  • Gears are jumping: you are almost certainly missing oil and you might have a gearbox oil leak, please discover our content page on gearbox leaks on Mercedes Benz CLS Class for more info.
  • The gearbox cracks when you change gears: The oil has absolutely lost viscosity and is too fluid, so the gears get stuck.
  • Difficulty to shift gears: Same issue as just before, the oil is absolutely too fluid.

Automatic gearbox oil change

  • A slow start from the neutral position to the first one: generally a viscosity issue.
  • Difficulty or even impossibility to shift gears: Lack of oil

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How to change gearbox oil of a Mercedes Benz CLS Class?

At last, to finish this content page, we will describe you how to empty the gearbox oil of your Mercedes Benz CLS Class , it’s less difficult than you might believe, here are the few steps to stick to to do it correctly:

  • Heat your Mercedes Benz CLS Class for about 10 minutes to get a fluid oil, place it flat on 4 stands.
  • Install a drain pan under the drain plug, open it, and clean it well because it will almost certainly collect filings.
  • Let all the oil run out until it’s all gone.
  • Change and tighten the cap, then fill with a syringe through the filler cap with the manufacturer’s recommended dose

To get more tips on the Mercedes Benz CLS Class, take a look at the Mercedes Benz CLS Class category.