1 | Compressed-air line |
2 | Compressed-air connectors |
3 | Electrical connector |
6.21 | Electronic Air Processing Unit (EAPU) |
6.22 | Electronic Air Processing Unit (EAPU) |
W42.60-A013-76
Warning | Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running. | Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. | |
Topical note | Information on preventing damage to electronic components due to electrostatic discharge | ||
Note on calculation of tightening torque when using insertion or socket tools with various effective lengths | |||
| Remove/install | ||
1 | Secure vehicle to prevent it moving away. | ||
2 | Connect diagnostic system, start XENTRY and switch on ignition. | Only when the Electronic Air-Processing Unit (EAPU) is replaced. | |
3 | Perform control unit replacement. | Only when the Electronic Air-Processing Unit (EAPU) is replaced. | |
Control unit replacement is completely menu-assisted under: | |||
4 | Empty compressed-air system completely. | ||
5 | Remove compressed-air line (1). | Union nut, compressed air line to screw-in fitting | |
6 | Mark compressed air connectors (2) as per labeling on electronic air-processing unit (EAPU) and remove. | ||
Installation: Pay attention to marking. | |||
7 | Disconnect electrical connector (3) at electronic air-processing unit (EAPU). | ||
8 | Remove screws and remove electronic air-processing unit (EAPU) from holder. | Bolt, Electronic Air-Processing Unit (EAPU) to bracket | |
9 | Install in the reverse order | ||
| Check | ||
10 | Switch off ignition. | ||
11 | Check compressed air connectors (2) on electronic air-processing unit (EAPU) for leak tightness. | Use commercially available leak detector spray. |