1 | Compressed-air connector |
2 | Electrical connector |
Y79 | 3/2-way valve for raisable leading axle |
W35.50-1110-06
Danger | Risk of death from lowering vehicle when working between wheels and body. Risk of injury from pinching or crushing when working on the air suspension. | Testing and repair work between the wheel and wheel arch or in the wheel well should only be performed if the vehicle is secured using suitable support fixtures to prevent it from lowering. | |
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 | ||
| Remove | ||
1 | Secure vehicle to prevent it moving away. | ||
2 | Support leading axle. | Only if leading axle is raised. | |
3 | Drain compressed air system completely. | ||
4 | Remove compressed-air connector (1). | ||
5 | Disconnect electrical connection (2). | ||
6 | Unscrew 3/2-way valve for liftable leading axle (Y79) from holder. | ||
| Install | ||
7 | Screw 3/2-way valve for liftable leading axle (Y79) onto holder. | 3/2-way valve for liftable leading axle to bracket | |
8 | Connect electrical connection (2). | ||
9 | Attach compressed-air connector (1). | ||
| Check | ||
10 | Start the engine and completely fill compressed-air system at idle speed. | ||
11 | Switch off ignition. | ||
12 | Check compressed-air connector (1) for leak tightness. | Use commercially available leak detector spray. | |
13 | Remove support of leading axle. | Only if leading axle was supported. |