Cars with gasoline engines.
Attention! For diesel engines, the air filter is removed together with the intake module, see the relevant chapter.
1. Disconnect the air intake pipe 1 (see illustration).
2. Disconnect the air intake connecting pipe 2 (see illustration 6.1).
3. Cars A 190. Disconnect the crankcase ventilation hose located under the resonator box, unscrew the mounting bolts and remove the resonator.
4. Unscrew the bolts 5 securing the engine control unit 3 to the air filter housing 4, remove the unit and set it aside from the work area (see illustration 6.1).
5. Unscrew cap 6 from the oil filler neck so that it does not interfere (see illustration 6.1).
6. Move air filter 4 to the right (see arrow in illustration 6.1), remove from guides 7 and remove.
The air filter is installed in the reverse order of removal.
To facilitate installation, lubricate its guides with a thin layer of grease. Replace the engine control unit sealing ring with a new one and also lubricate it with a thin layer before installation.
Information copied from the website: www.mercedesman.ru