Repair Supply Line Connection For Air Suspension - AR32.22-P-2001-01LWO

Model 238 

With Code 489 (AIR BODY CONTROL) 

Number	Designation		Model 238
BA32.22-P-1004-03H	Pressure line to compressor/valve unit (P)	Nm	3,

Number	Designation		Model 238
BA32.22-P-1005-03H	Pressure line for air suspension on front axle/rear axle to valve unit	Nm	2

Number	Designation			Model 238
BA32.22-P-1006-03H	Pressure line to air suspension	Front axle	Nm	2
		Rear axle	Nm	3,

Number	Designation		Model 238
BA32.22-P-1008-03H	Pressure line to pressure reservoir/valve unit (SP)	Nm	3,

Shown on front suspension strut 

Courtesy of MERCEDES-BENZ USA

Make sure that the repair work is performed carefully.

Otherwise renewed leaks may occur.

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.

Do not kink pressure line (4) and repair line (2).

Otherwise the pressure line (4) or the repair line may be damaged (2).

A repair line (2) with a straight and a curved section is available as replacement part.

1. Remove compressed-air line connection (1a) from the affected component (e.g. suspension strut).
2. Cut off pressure line (4) using an isolating blade at a suitable point.

   Special care must be taken to ensure that the cut is exactly at right angles to the pressure line (4).

   Otherwise the pressure line (4) may suffer more leaks.

3. Insert pressure line (4) into pressure line connector (3) up to end stop or to at least 19.5 mm.
4. Pull back pressure line (4) slightly, to enable the surrounding retaining edges inside the clamping ring (1b) to engage in the outer surface of the pressure line (4).
5. Cut repair line (2) so that the original length and form (straight end or 90° curved section) of the pressure line (4) to be repaired is reached again.

   When cutting off the repair line (2) take into account the insertion depths in the repair screwed connection (1) and pressure line connector (3).

   Leaks can occur otherwise.

   Special care must be taken to ensure that the cut is exactly at right angles to the repair line (2).

   Otherwise renewed leaks may occur.

6. Insert repair line (2) into pressure line connector (3) up to end stop or to at least 19.5 mm.
7. Pull back repair line (2) slightly, to enable the surrounding retaining edges inside the clamping ring (1b) to engage in the outer surface of the repair line (2).
8. Screw repair threaded connection (1) using torque tool set and the torque wrench into the affected component.

   Pressure line to compressor/valve unit (P),

   Pressure line for air suspension on front axle/rear axle to valve unit,

   Pressure line to air suspension,

   Pressure line to pressure reservoir/valve unit (SP),

9. Pull plastic guard (1c) out of repair connection (1).
10. Insert repair line (2) into repair threaded connection (1) up to end stop or to at least to 19.5 mm.
11. Pull back repair line (2) slightly to enable surrounding retaining edges inside clamping ring (1b) to engage in outer surface of repair line (2).
12. Route pressure line (4) on vehicle.

    When pulling in or routing the pressure line (4) on the vehicle make sure that the pressure line (4) cannot be twisted once fastened.

    A twisted pressure line (4) can be damaged and consequently be leaky.