Removal
1. Set the car to "Service mode" (only on vehicles with air suspension). Press button 1 at the bottom for about 2 seconds before lifting.
2. Raise and secure the vehicle. The pneumatic chambers must be free.
3. Unscrew the bolts 5 securing the pneumatic chamber 7 (see figure 7.17).
Figure 7.17. Air chamber (cars 638.0/1 and 638.2 with air suspension of the rear wheels):
1. Service button,
2. Adjusting lever,
3. Lift height sensor,
4. Lower arm,
5. Bolts,
6. Delivery tube,
7. Pneumatic chamber.
4. Disconnect the injection tube 6 from the pneumatic chamber 7.
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