Volkswagen Golf Service & Repair Manual: Draining air conditioner service station

Volkswagen Golf Service & Repair Manual / Air conditioning system with refrigerant R134a / Working with the air conditioner service station / Draining air conditioner service station

Note

If it becomes necessary to drain the air conditioner service station (e.g. because contaminated refrigerant was extracted), all filters and dryers are to be renewed as a rule. Do not take the filters and dryers out of their airtight packaging until immediately prior to installation in order to keep moisture absorption (hygroscopic property) as low as possible.

Refrigerant bottles that have been charged with contaminated, used refrigerant are referred to as “recycling bottles”.

Recycling bottles must be evacuated as a rule before being filled for the first time with refrigerant. Refrigerant bottles that have air in them must not be filled with refrigerant.

Different types of refrigerants must not be mixed with each other. Mixed refrigerants cannot be processed for reuse. They have to be disposed of. If the composition of the contents of the bottle is uncertain, the refrigerant recycler must be informed of this.

WARNING

When charging recycling bottles (compressed gas containers), observe existing regulations, technical rules and laws.

Never overcharge recycling bottles. The gas cushion (expansion space) of overcharged recycling bottles is too small to accommodate expansion of the fluid caused by a rise in temperature. There is a risk that the bottle will burst.

For your own safety, use only recycling bottles with a built-in safety release valve.

Recycling bottles must be weighed on a calibrated scale while being charged. The maximum permitted charge quantity is 75% (fill factor 0.75) of the charge weight shown on the recycling bottle (the possibility cannot be excluded that along with the refrigerant, refrigerant oil is drawn into the recycling bottle).

Charging container in air conditioner service station with refrigerant

Always follow the procedure described in the user's manual for your air conditioner service station. For every air conditioning system, a certa ...

Detecting leaks in refrigerant circuit

Note Different processes are described in this workshop manual for leak detection in the refrigerant circuit. These processes have been tested an ...

Other materials:

Introduction
This chapter contains information on the following subjects: → Warning and indicator lamps → Information on steering The power steering is not hydraulic. It is an electromechanical system. The advantage of this steering system is that no hydraulic hoses, hydraulic oil, p ...

Removing and installing upper transverse link, front-wheel drive
Special tools and workshop equipment required Torque wrench -V.A.G 1332- Removing – Loosen wheel bolts. – ...

Removing dual clutch
Special tools and workshop equipment required Hook -3438- Engine bung set -VAS 6122- Support device -T10323- -T10356/5- from assembly tool -T10356- Puller -T10373- Thrust piece -T10376- ...