A/C Compressor Regulator Valve -N280-, REMOVING, INSTALLING AND REPLACING: Installing

WARNING: This page is about a different car, the 2023 Audi SQ8, 2023 Audi RS Q8, and 2023 Audi Q8. However, it is still accessible from the selected car via links, so may be relevant.

-- Check the A/C compressor mount -C- and the circlip groove for dirt, and if necessary, clean them carefully and thoroughly with a clean, lint-free cloth.

CAUTION:

Danger of another A/C Compressor Regulator Valve A/C Compressor Regulator Valve -N280- -B- or A/C compressor failure due to dirt in the A/C compressor or damage to the sealing surfaces in the mount.

If necessary, carefully clean the A/C compressor mount -C- using only a clean, lint-free cloth (do not use compressed air).
Make sure while cleaning the mount -C- that no dirt gets into the area underneath the O-ring sealing surface -F- or the existing channels and none of the mount sealing surfaces become damaged.

-- Check the A/C compressor mount -C- for damage (also pay attention to small scratches on the surface, if there is damage, replace the A/C compressor).

-- Check the O-rings -F, G, H- and -E- (if equipped) of the A/C Compressor Regulator Valve A/C Compressor Regulator Valve -N280- -B- for damage.

-- Coat the O-rings -F, G, H- and -E- (if applicable) of the A/C Compressor Regulator Valve A/C Compressor Regulator Valve -N280- -B- lightly with refrigerant oil and check for proper seating.

-- Insert the A/C Compressor Regulator Valve A/C Compressor Regulator Valve -N280- -B- all the way into the A/C compressor mount -C-.

-- Install the new circlip -A- and check for proper seating in the groove.

-- Re-install all removed parts in the reverse order.

-- Evacuate and refill the refrigerant circuit. Refer to A/C SERVICE STATION, USING .

NOTE:

Should the refrigerant oil escape with the A/C Compressor Regulator Valve A/C Compressor Regulator Valve -N280- -B- removed, add this amount of refrigerant oil while filling the refrigerant oil with the A/C service station. Refer to Refer to A/C SERVICE STATION, USING .

-- Check the A/C system function. Refer to PRESSURES, CHECKING and Refrigerant Circuit (vehicle-specific service information).