Thanks to the rubber seal, the filter fits snugly against the housing. When passing through the filter, fine dirt particles are deposited in its folds of finely porous material, while larger particles are deposited in the housing.
The filter performs well only when it is maintained regularly. A clogged filter is not letting enough air into the engine. The mixture becomes greasy, power drops and fuel consumption increases.
Cleaning and replacing the filter
The filter itself must be cleaned at least once a year and replaced after two years. The type of filter for your Mercedes E-class is described in the documentation, you can also find it in specialized stores selling spare parts for foreign cars. It is not necessary to purchase an original replacement filter, filters from other manufacturers are also suitable for use.
Sequence of work
"60,000 km 2 years"
Pic. 4.55. Air filter cover locks
1. Remove the upper part of the air damper. Open the six latches on the meter discharge pipe (pic. 4.55) supply air and remove the clamp.
Pic. 4.56. Estimating the degree of filter contamination
2. Take out the filter (pic. 4.56).
Pic. 4.57. Place where dirt accumulates in the filter housing
3. Clean the filter housing (pic. 4.57). The accumulation of oil in the mud indicates engine wear or excessive oil in the system.
4. Tap the paper filter on a hard surface. Remove large dirt particles.
Pic. 4.58. Filter cleaning
5. Remove finer dirt with compressed air (pic. 4.58). Direct the airflow from the side along the filter folds.
Do not blow the filter from outside to inside. Do not clean the paper filter with liquid.
6. When changing the filter, make sure that the seal fits well on the bottom of the filter housing.
7. Insert a new filter into the bottom of the damper. Make sure the rubber seal fits well.
8. Check the seal on the top of the damper. Replace if necessary.
Pic. 4.59. Installing the sealing ring on the air mass meter discharge pipe
9. Put the upper part of the body on the discharge pipe, put on the lower part, put the discharge pipe on the fitting and tighten with a clamp (pic. 4.59).
Removing the air damper
1. Remove the suction tube from the damper. To do this, unscrew the clamp.
2. Lift the damper from the rubber pad and remove it from the engine compartment.
3. When mounting the damper, pay attention to the correct fit of the body trunnions on the rubber backing.