What is the detailed video tutorial for adding refrigerant to a car air conditioner?
3 Answers
Car air conditioner refrigerant charging video detailed tutorial is a step-by-step video method for adding refrigerant to a car air conditioner. Here is an introduction about car air conditioners: 1. Introduction: Car air conditioner refers to the air conditioning device installed in a car. 2. Function: It can cool, heat, ventilate, and purify the air inside the cabin, providing a comfortable riding environment for passengers, reducing driver fatigue, and improving driving safety. The air conditioning system has become one of the indicators to measure whether a car is fully equipped. 3. Components: Generally includes refrigeration devices, heating devices, and ventilation devices. This combined system makes full use of the limited space inside the car, with a simple structure and easy operation, representing the internationally popular modern car air conditioning system.
Recently I refilled the refrigerant for my old Jetta myself, sharing some hands-on tips. Prepare R134a refrigerant cans, pressure gauge kit, gloves and goggles. Start the engine with max fan speed and lowest temperature setting first, locate the low-pressure pipe connection (the one with the blue cap) and clean off dust. Remember to purge air when attaching the pressure gauge - you can top up when the needle reads below 2bar. Slowly add refrigerant with the can upside down, never exceed pressure (around 35psi is ideal in summer). Close valves quickly after refilling or you'll get freezing refrigerant spray. Veteran mechanics warned me in tutorials: if pressure won't rise, there's likely a leak that needs fixing first. The key is meticulousness - the operation itself isn't hard, but having someone experienced supervise your first attempt is advisable.
Last time I watched a tutorial video filmed by a repair shop master, it was incredibly detailed. The key lies in the preparatory work: you must first vacuum for half an hour to remove air—skip this step and the cooling efficiency suffers. Don’t mix up the high and low-pressure ports on the gauge; the low-pressure hose is usually thicker than the high-pressure one. The video repeatedly stressed matching the correct refrigerant type—older cars using R12 are practically extinct now. When adding refrigerant, the master held the can upside down like shaking champagne, eyes glued to the pressure gauge, and even accounted for pressure conversions in cold winter temperatures. Only after watching the full 40-minute video did I notice six specialized adapters clipped to his waist—proof that DIY attempts without professional tools aren’t advisable.
