Air Line: Service and Repair

AR32.22-P-2001-01T Repair supply line connection for air suspension
- except CODE (489) Airmatic (semi-active air suspension)

Struts:

Air Suspension:

Special Tools:

Component Identification:

In the event of damage to compressed-air terminals (1a) and pressure lines (4) a compressed-air connector (3) or a repair screwed connection (1) can be mounted.

If the pressure lines on the front components of the air suspension are damaged, replace the entire pressure lines. When the pressure lines on the rear components are damaged use connectors for pressurized lines (3).

1 Unscrew compressed-air terminal (1a) from affected component (e.g. air suspension strut) and cut pressure line (4) to suitable length using knife.

Special care must be taken to ensure that the cuts are exactly at right angles to the lines.

2 Insert the cutoff pressure line (4) up to the stop or 19.5 mm into the pressure line connector (3).
3 Cut the repair line (2) so as to obtain the original length and shape (straight end or 90 degrees arc) of the line.

Do not buckle line. When cutting the repair line (2) to length, take into account the insertion depths in the repair bolted connection (1) and pressure line connector (3).

Repair lines (2) supplied from through the spare parts channels, each repair (2), with one straight and one bent end.

4 Insert the repair line (2) up to the stop or to a depth of 19.5 mm in the pressure line connector (3).
5 Screw the repair bolted connection (1) into the component in question.
6 Pull plastic guard (1c) out of repair connection (1).
7 Insert the repair line (2) into the repair bolted connection (1) up to the stop or to a depth of 19.5 mm.

If necessary mark the repair line (2) at 19.5 mm with a felt-tip pen beforehand.

After insertion, the pressure lines should be pulled back slightly so that the retaining edges around the inside of the clamping ring (1b) engage in the outer surface of the line.

When pulling in or routing the line it should be ensured that, after fastening, the lines cannot be twisted anymore. Secure pressure line connectors (3) to a suitable point on the vehicle using tie straps to prevent the pressure lines from chafing and to prevent rattling noises.

If blows form at the repair location as per leak check with leak detection spray (Fa. Kaltefischer, Augsburger Str. 289-291, 70327 Stuttgart, Order no. 835-3000, 400 ml), check to ensure that the pressure lines are inserted to the stop. If bubbles continue to form nevertheless, then the pressure line connector (3) may be defective and a new pressure line connector (3) or a new repair bolted connection (1) should be used.