What to Do When the Volkswagen Sagitar's Air Conditioning Doesn't Cool?
2 Answers
When the Volkswagen Sagitar's air conditioning fails to cool, possible causes include damage to the air conditioning compressor, expansion valve, or throttle valve, malfunction of the air conditioning flap motor, aging or loose belts, insufficient refrigerant, or excessive moisture and impurities in the pipeline. Below are the reasons and solutions for the air conditioning not cooling: 1. Insufficient or low refrigerant is a common cause of car air conditioning not cooling, often due to minor leaks. Solution: Observe through the sight glass on the dryer tank. If continuous slow bubbles appear during normal operation, it indicates insufficient refrigerant. 2. If obvious bubble flipping is observed, it indicates a severe lack of refrigerant. Refrigerant should be added, but note that if adding from the low-pressure side, the refrigerant bottle must not be inverted. If adding from the high-pressure side, the engine must not be started.
I just fixed the air conditioning not cooling issue in my Volkswagen Sagitar. Common causes include insufficient refrigerant, compressor failure, or a clogged cabin air filter. First, check if the fuse is blown; locate the corresponding position in the car's fuse box and try replacing it with a new one. You can listen for the compressor's operation sound—if there's any abnormal noise, it may require professional inspection. Insufficient refrigerant can be resolved by adding refrigerant, but avoid overfilling to prevent system damage. Replacing the filter is simple—open the glove compartment, remove it, and clean or replace it, costing only a few dozen yuan. If the above methods don’t work, go to a 4S shop for a comprehensive diagnosis, as they have professional tools to measure pressure. Don’t tinker blindly—the air conditioning system is complex, and safe driving comes first. Regular maintenance, such as replacing the filter every 10,000 kilometers, can prevent such issues.
