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1977 BMW 320i Base Coupe
 
BMW Home > 1977 BMW 320i Base Coupe > Ventilation & A/CAir Conditioning & Vents 

Air Conditioning & Vents

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A/C Valves

After the hot refrigerant gas is condensed into liquid by the condenser, it gets sent to the expansion valve. The expansion valve is used to bleed off the pressure from the hot refrigerant liquid. When the pressure drops, the result is that the refrigerant cools to the point where it can now enter the evaporator and complete the process of getting cold air in your car on a hot day. If you have trouble keeping the A/C temperature cold, and there is plenty of refrigerant in the system, it may be possible that the expansion valve is damaged or faulty.
A/C Expansion Valve

A/C Evaporators and Parts

The evaporator essentially works the same way as a condenser, except in reverse. The idea is that once the pressurized refrigerant has been condensed into a liquid, then depressurized and cooled by the expansion valve, it enters the evaporator, which due to it's construction allows the temperature of the coils inside to drop considerably. Usually, then a fan blows air over the evaporator. The oncoming air is cooled by the evaporator, then sent out the vents of the dashboard, and right onto your face.

A/C Refrigerant Adapters

A/C Refrigerant Adapter  
 
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Note: R-12 to R-134a Kit, R12 to R134 Update Kit, w/ o-rings & seals, w/ connections, w/ Pag oil

Santech
Brand Rating
$38.75

HVAC Motors

Pelican Parts carries the HVAC motor you need to keep you running cool on those hot summer nights.

HVAC Heater Cables and Parts

Don't let simple cables and hardware keep you from being comfortable in your car. Always replace old tired hardware with new when working on your HVAC system.

Air Conditioning Tools

A/C Coupler Remover  
 
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Note: For Mercedes 204, 211, 219, and 221 chassis cars.

Baum Tools
Brand Rating
$97.25

Air Conditioning System Cleaners

As the name implies, Klima-Cleaner ETU air conditioner cleaner is a fast and easy way to eliminate odor causing contaminants from the air conditioning system. Klima-Cleaner ETU doesn't encapsulate odors, it eliminates the source of the odors for long-lasting results! Just place on rear floor of car, turn on air conditioner, activate sprayer, close doors/windows and the disinfecting solution cleans the A/C system and cockpit area in less than 10 minutes! Klima-Cleaner ETU does not require professional application and can be used on all vehicle makes and models.

A professional air conditioner cleaner that effectively removes odors, dust and pollen buildup from the evaporator core of the air conditioner system for fresh and clean air that lasts for months. Klima-Cleaner is applied via the drain tube or through the fins of the blower which leads directly to the evaporator by way of the intake vent. The special cleaning foam is then injected into the system where it removes pollen, dust, nicotine film, and odor causing agents. Finally, an exclusive protective film coats the evaporator to inhibit the growth of mold, fungus and bacteria for longer lasting results. For best results, apply every 3-6 months and replace your cabin/pollen air filters. Klima-Cleaner is water-based and does not contain any harsh chemicals. Read instructions before using! DO NOT apply through the vents. We highly recommend professional application only. On certain vehicle makes, damage may occur if product is not applied properly. If uncertain about application, have a certified mechanic apply product.

Don't mask odors with fragrances -- treat them. Klima-Cleaner is an effective means for removing odors from the air conditioning unit by eliminating odor-causing bacteria, fungi and other germs. Works by effectively cleaning the evaporator -- the source of the problem. Apply as directed on the product label by applying through the air intake by way of the blower fan. Creates a healthy and fresh smelling environment that lasts for months. 250 ml aerosol *Ground Shipping Only. CAUTION: Recommended for professional application only. On certain vehicle makes, damage may occur if product is not applied properly. If uncertain about application, have a certified mechanic apply product.

BMW Home  >  1977 BMW 320i Base Coupe > Ventilation & A/C  >  Air Conditioning & Vents 

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Browse Air Conditioning & Vents for all 3-Series E21 (1977-1983) vehicles

Page last updated: Wed 11/22/2017 12:41:02 AM
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