Audi Workshop Service and Repair Manuals

Removing

• ‒ Drain the refrigerant circuit

=> Air conditioner - with refrigerant R134a

• ‒ → Separate the refrigerant line to the screwed connection -A- (close open connections).
• ‒ Use long-nose pliers to pull the restrictor -B- out of the refrigerant pipe

Installing

Note:

Only fit restrictors of the same design (colour). Restrictors of different colours have different bore diameters:

=> Parts List

• ‒ Install the restrictor -B- on the correct side (arrow on the restrictor pointing towards the evaporator)
• ‒ Restrictor must sit in the refrigerant pipe with no play

• ‒ → Check that the O-ring seals -C- (7.5 mm/1.5 mm) are seated correctly in the groove.
• ‒ Replace the O-ring seal -D- (10.8 mm/1.8 mm).
• ‒ Apply a small amount of refrigerant oil to the O-ring seal in the restrictor
• ‒ Install the refrigerant lines with no tension.
• ‒ Tighten the screwed connection -A- to 15 Nm.