Heating, Ventilation and Air Conditioning

Compressor Types, Checking Pressures

~1min read

Note Check cooling performance. The A/C system is functioning correctly when the air flowing from the instrument panel vents has a temperature of 70C or lower.

Setting on Climatronic "LO".

Setting on A/C system "AC" on; "max"; "cold".

Connections with valve and service connections for measuring and checking.

Check on vehicles with restrictor and reservoir (with internally regulated A/C compressor). Refer to → Chapter "Checking with Restrictor and Reservoir, with Internally Regulated A/C Compressor". Check on vehicles with expansion valve and receiver/dryer (with internally regulated A/C compressor). Refer to → Chapter "Checking with Expansion Valve and Receiver/Dryer, with Internally Regulated A/C Compressor". On vehicles with expansion valve and receiver/dryer (without regulated A/C compressor). Refer to → Chapter "Checking with Expansion Valve and Receiver/Dryer, without Regulated A/C Compressor". Checking pressures for vehicles with restrictor, reservoir and A/C Compressor Regulator Valve -N280- (externally regulated A/C compressor). Refer to → Chapter "Checking with Restrictor, Reservoir and A/C Compressor Regulator Valve -N280-, Externally Regulated A/C Compressor".

Test yourself

A quick Volkswagen Touran quiz: every answer comes with an explanation and a link to the manual page.