Refrigerant Line C

Refrigerant Line C

Removing





- Drain the refrigerant circuit.

- Remove the front bumper.

Remove the following components depending on the vehicle (not present in all versions).

- Remove the air intake unit (not necessary e.g. on vehicles with right-hand steering or the Audi RS6) => [ Air Intake Unit ] Air Intake Unit.

- Remove brake master cylinder and brake booster.

- Remove the left headlight

- Remove the hydraulic oil container for the power steering.

- Remove the hydraulic unit for ABS.

• The brake master cylinder and brake booster have to be removed for the Audi RS6. For this reason, it is necessary to remove the air intake unit for this vehicle.

• Depending on the engine, the coolant line from the A/C unit heat exchanger to the engine may also be routed through the grommet - D - (e.g. Audi RS6).

Continuation of work for all vehicles:

- Remove the refrigerant lines from the connection to the A/C unit => [ Refrigerant Lines at A/C Unit ] Refrigerant Lines at A/C Unit.

- Remove the brake lines from the brake master cylinder to the hydraulic unit (not necessary on vehicles with right-hand steering).

- Open the screw connection in the refrigerant line (between refrigerant line - A - and - B -) => [ Restrictor ] Restrictor (remove and install restrictor).

- Disconnect refrigerant line - C - from the connector at the reservoir=> [ Reservoir ] Service and Repair.

- Release the grommet - D - from the front wall of the plenum chamber.

- Remove refrigerant lines - A - and - C - together.

- Separate refrigerant lines - A - and - C - from one another.

Installing

Installation is carried out in the reverse order, when doing this note the following:

- Coat O-ring seals lightly with refrigerant oil before installing => [ Refrigerant Circuit O-Ring Seals ] Refrigerant Circuit O-Ring Seals.

- Following attachment, check routing of refrigerant pipes. They must be inserted in holders provided and not make contact with other components.

- Refill any fluids that were drained and bleed the respective vehicle systems.

- Evacuate and refrigerant circuit after assembly and refill.

- Check the DTC memory for the Climatronic Control Module (J255) A/C control head and erase any faults displayed if necessary.

- Operate the A/C system after filling the refrigerant circuit => [ A/C System, Operating after Filling Refrigerant Circuit ] A/C System, Operating after Filling Refrigerant Circuit