2011-2016 Electric AC Compressor For Audi Q5/Q7/A6/A8 C7/D4 2.0 8600357/4G0260797/4G0260797A

2011-2016 Electric AC Compressor For Audi Q5/Q7/A6/A8 C7/D4 2.0 8600357/4G0260797/4G0260797A

Parameter

Theory

Principles of Air Conditioning

(Expansion Valve System)

1)High pressure side

Low pressure R134a vapor entering the compressor is compressed to become high pressure/temperature R134a vapor. This is then circulated along with lubricant oil to the condenser. As the high pressure/temperature vapor travels through the condenser, heat is released to the cooler ambient air passing over the condenser tubes condensing the vapor into a liquid. This high pressure/temperature liquid then travels through the filter drier onto the expansion valve where a small variable orifice provides a restriction against which compressor pushes.

2) pressure side

Suction from the compressor pulls the high pressure/temperature liquid R134a through small variable orifice of the TX valve and into the low-pressure side of the A/C system.

The R134a is now under low pressure/temperature vapor where heat from the cabin being blown over the evaporator coil surface is absorbed into the colder low pressure refrigerant The R134a is then pulled through the evaporator and into the

compressor.

The A/C cycle begins again as the R134a vapor is compressed and discharged under pressure.

3)Heat transfer

R134a in the LOW-PRESSURE side is COLD and can absorb large quantities of heat from the air moving over the evaporator.

R134a in HIGH-PRESSURE side is HOT and the cooler ambient air moving over the condenser can absorb the heat from it.

Summary

- When the R134a pressure is low, the R134a temperature is low.

- When the R134a pressure is high, the R134a temperature is high.

FAQ

Q1.What is your terms of payment?

T/T 30% as deposit, and 70% before delivery. We'll send you the photos of the products and packages before you pay the balance

Q2.What is your terms of delivery?

EXW,FOB ,CNF and so on

Q3.Can we buy one sample ?

Yes, if we have product in stock, but the customers need pay the sample cost and the shipping cost.

Q4.Do you test all your goods before delivery?

Yes,we will test them and send the picture to for your confirm (Products and packaging)

Q5.How do you make our business long-term and good relationship?

1. We keep good quality and competitive price to ensure our customers benefit ;

2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.

Q6. What should we do if I don’t know if my product matches your goods ?

A:You can email us the descriptions and pictures of the products you need ,we will check whether it is the item you want.

Technical Information:

Compressor is making noise:

There are two possible reasons why your compressor is making noise.

First being that the compressor is suffering from

internal damage due to a lack of refrigerant or oil in the system.This is an early sign that the compressor will seize,

please go back to the first example and follow the instructions.

The second reason is that the

bearing on the compressor is bad.

Visible symptoms:

The compressor makes noise when the a/c is on or off, the clutch has a red/brown discoloration caused by overheating.

What you should do:

With the right tools and some mechanical knowledge,

you can replace the bearing on the compressor without having to remove it from the vehicle.

We carry almost all bearing sizes for a/c compressor clutches.

Please contact us and we will provide you with the item number so you may purchase the clutch bearing.