Audi a4 ac compressor not turning on. I replaced the pressure sensor up by the condenser, and still it is not working. " Apr 15, 2021 · After 2 hours waiting I was given a video report that explained that the condenser had been damaged, probably a stone, and all the gas had leaked out. Oct 4, 2022 · If voltage goes to the blower motor, it’ll need replacing. But noise can also be caused by cross-contaminated refrigerant (operating Feb 11, 2022 · Here are 5 main things that can stop your ac compressor from turning on. If there’s no voltage, test the resistor (YouTube). - replaced the ac pressure switch (g395) - no improvement. Electrical problems. One time it came on 10 minutes or so after i started the car. The most common reason for your Audi A3’s AC not blowing cold enough is low refrigerant levels, followed by a dirty evaporator or condenser issues (bad or clogged). There is no compressor drive clutch, the compressor is always rotating when the engine is running. Park your Audi in a safe area. If the thicker pipe is stone cold and the smaller pipe is slightly warm then the system is working and most likely a flap motor is causing your problem. VCDS Serial number. 8TQ - Troubleshooting AC & Radiator Fan. When you turn on the air conditioning, you expect to feel cold air pour out. The latest one is that I recently overheated a couple of nights ago. 2L CAR. are all correct. Issues with the compressor or compressor clutch. 8 audi a4 ac compressor replacement parts 4b0 260 805 b. Now that I think of it, I don't know if our cars have a low side Jun 17, 2017 · Audi A4, 1. When to Call a Professional. The condenser had corroded and leaked causing it to stop working. Inspect Circuit Breakers. Turn your unit off immediately. Back to Subforum. Ta. Identifying a Faulty Thermostat. Refrigerant levels. Turn the a/c on. Compressor ac audi a4 1999 Audi compressor a4 ac parts shipping Compressor audi 4pk a4 ac auto. AC Refrigerant Leak. You can not tell by looking at it. New Compressor installed (clutchless style) New Dryer installed. Posted May 21, 2023. A8 / S8 (D3 Platform) Discussion - AC Not Working - But Compressor is On - This is the first really warm day in Chicago this year, my 07 S8 was parked outside for a few hours, it was very warm in the cabin. Check other compressor parts: The condenser . Feb 6, 2015 · 99. Inspect the Thermostat. Apr 5, 2016 · Step 1 – Check your freon. - compressor isnt kicking on but 2 mechanics say it is not the compressor. Whatever brand or style of air conditioner you have, it will be sure to emit some sort of noise. Jul 21, 2023 · 2. # 5. In essence, the compressor is getting the turn on signal, which means fuse, relay control module, etc. Check the fuse or circuit breaker. Pull the hood release located under the dashboard on the driver’s side. Audi compressor s4 ac b6 2005 May 11, 2020 · If you've got 4-Zone Climatronic you have two Air Con evaporators and alot of connections it could leak outta. Temperature Setting: The set temperature must be lower than the room temperature. They are in position's #2 and #3 on the top row and have the #'s 213 and 214 on them. Bad A/C button or control module/head unit. $7k bill to replace the AC Compressor. When the compressor is running, the low side will run around 30 psi and the high side will run around 250 - 300 psi, depending on ambient temp. 21 % of the time it's the. What happens is the system has a safey built in so that it doesn't run the compressor if there's not enough/too much pressure. Audi A4 B6 Air Conditioning Charge Our Website for Tools, Parts and more Videos: http://mechaniclifestyle. AC should come on automatically when Auto is activated, and you would only use the AC button to turn it off, which would cancel Auto mode at the same time. Nov 13, 2021 · Ac switch it’s one of the most common issue that cause Audi AC system not working,Try replacing this one first. May 29, 2011 · It doesnt come on completely. Head over to check your condenser unit and find out if both your compressor and the fans are not working. 1 month later Jun 23, 2015 · A/C button won’t stay on. nearly the same thing happened to me after i did my timing belt. Nov 22, 2012 · Once that's off, pull off the pulley. Cost around £500 for diagnosis, fit new condenser and re-gas. Air conditioning units by their nature are noisy beasts. Engine faults. Once the temp gets so hot, the ECU commands the radiator fan to come on. Feb 7, 2016 · 4658 posts · Joined 2010. Check the fan motor: Manually spin the fan blades. The most common reasons an Audi A4 Quattro ac isn't working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. This is done through the G65 pressure sensor (p/n 8E0-959-126-C). Reply Like. As the physical switch controlling AC, common signs include overheating AC parts, certain settings not working, or the AC compressor not turning on. 03-10-2006 03:48 AM #10. when I press the button to turn it on, it seems the compressor clutch doesn't start. 0L AWD. I already recharged the system with gas, the pressure-sensor is new, and Solutions for a Split AC Compressor Not Turning On. Causes of an AC compressor not turning on. -blower is working, but only getting ambient air temp, not cold air. Warm Air is Blowing. Inspected AC system and found no signs of damage or leaking at this time. May 22, 2008 · Here is what I know for AC troubleshooting; Please help! 2000 Audi A4 2. All connections cleaned and installed new o-rings. I have the temp on both sides set to LO, no light on the AC button. Jul 15, 2021 · After inspecting the belt, there can only be two things left that could be happening: 1. Mechanic stated he called his audi parts supplier, who stated I needed a new climate control unit. Jul 18, 2013 · The high side pressure sensor sends a PWM output signal to the A/C controller in the dash. 4. Check for Electrical Problems. Mar 12, 2006 · My Classifieds: 0. HVAC control modules of that vintage were notoriously bad at detecting problems with the compressor, and VCDS can only tell you what the car knows. Locate the low-pressure port. The scanner will help tell you if the pump is getting a signal or not. However, when the AC pressure switch goes bad, warm air might be all you get. Inspect the thermostat: Ensure the thermostat’s settings match your desired temperature and mode. Mar 4, 2011 · Received 0 Likes on 0 Posts. How to Troubleshoot Central AC Compressor Not Turning On. Fix the thermostat. 8L 2. Noise from the compressor usually means the compressor is on its way out. No VCDS codes at all, compressor clutch voltage in VCDS reports +13 and compressor "on" is 1. Wait for at least 5 minutes before restarting the vehicle. Aug 18, 2017 · Please help! My 2009 A4 quattro avant - AC iS NOT WORKING. I am not sure of you can see the movement but you can try to start your a/c and see if it works. Read MVB and found last compressor shut off stage due to low refrigerant pressure. AC Compressor For Car AUDI A4 1. jpg. Jul 14, 2021 · After inspecting the belt, there can only be two things left that could be happening: 1. Compressor is not engaging. 2009 Audi S5 6sp Phantom Black on Black leather with Alcantara inserts, w/nav,tech,B&O Sound and aluminum inlays, and 9500ci. May 27, 2020 · There are two reasons a code may get set one is the switch is bad and giving faulty info the other possibility is that the sensor is good but it is telling the module to not start the compressor because there is not enough refrigerant. Upon looking at the compressor, the clutch is always spinning even when I shut down the entire climate control system. 2L 4. Holding Freon now too. It seems just a bit cooler than the ambient air but that may just be my imagination. But the compressor is not responding. That's how all three of my A5's have worked, including both pre and post FL. Apr 21, 2014 · 3. Testing the Capacitor. /. Author. Join Date: Jan 2010. One positive is there is very little variability in replacement costs from one model year to another. Sent from my iPhone using Audizine Image1544209092. GET A QUOTE. Apr 18, 2016 · Apr 25, 2016. Received 8 Likes on 8 Posts. Had the car about a year with working AC, blew nice and cold, nothing out of the ordinary. #1 · Jul 7, 2017. ดูวิดีโอล่าสุด audi a4 ac compressor not turning on และแท็กแนวโน้มรถยนต์ปี 2021 - 2022 วิดีโอของรถดัดแปลง รถคลาสสิก และอื่นๆ ได้ที่ autofun. Check other compressor parts: The condenser May 21, 2017 · 4418. Do the radiator fans turn off? If so, that means that the FCM is getting all the right signals to power up the clutch, but it is just not sending it power because it is broken. Read FAQ. Jun 4, 2018 · AC was blowing ice cold as normal, stopped at home to drop some things inside and left the car running in the driveway. Investigate Overheating Issues. Recently regassed the system as it was a little low, and after that it was working perfectly. Often overlooked, the thermostat is a primary control point for your AC system. hi. Evaporator temperature sensor. Open hood. Thermostat Malfunction. Mechanic checked all fuses and relays, stated they were fine. A6 / S6 (C5 Platform) Discussion - 2000 A6 Avant 2. Thanks. Mar 14, 2024 · Ensure it’s in the “on” position, and if not, flip it back on and see if that resolves the issue. 8 12v is the single most mysterious system to me. If you notice your compressor not working after turning on your thermostat, there could be a power cut to your outdoor unit. 8 AC Compressor Not Turning On - I've got a 2000 A6 Avant quattro with the 2. If left unattended, this can elevate the situation from a simple capacitor May 17, 2011 · AC Compressor not engaging. Change the contactor. Turn off the engine. Mar 21, 2008 · 1. 2010 Audi A5 Prestige 2. Turn off the AC by pressing the “AC” button on the dashboard or climate control system. So not sure if or how the compressor can be 'forced' to run for test purposes. Doesn't seem right to me. 4 2. Just replaced the pressure sensor and still no A/C. Inspect the Circuit Breaker. Click on the image to get more Dec 25, 2023 · Discount parts ac compressor audi a5 a4 maker coffee cool Ac compressor for audi a4 8d2,b5 8d5,b5 a6 for audi a4 compressor Ac not blowing cold. 0 when I have ECON off. Mechanic ran a hot wire to test compressor, it kicked on and the system was blowing cold air. 8 bar. abyrne153 said: You can check if the aircon is operating by running the car for a few minutes and then checking the pipes close to the air box. This indicates some form of wiring problem. Awesome car, but just noticed the AC won't turn on. Safely Discharging the Capacitor. Turn the car on, drive away, no cold air coming out of the vents, but air is blowing normally, turn the Jan 15, 2016 · Step 5: Install new compressor (after filling up with oil), orifice tube, and reconnect lines. Our Aug 21, 2009 · Friend did a vag scan on it -came back as the g65 pressure sensor (bolts to the drivers side of the condenser-behind the headlight). I am original owner and car has ~78000 miles on it now. This picture shows the A/C charging port on an Audi A4. Fixing Thermostat Issues. Therefore, it undergoes regular wear and tear. Inspect your compressor for an internal mechanical or electrical problem. I have a C7 A6 I'm in the process of Feb 20, 2010 · 00819 - High Pressure Sensor (G65) 30-00 - Open or Short to Plus. Latest thing I've noticed now that it is getting warmer here in upstate NY is that the AC compressor is not kicking on. Do a Visual Inspection of the compressor: (Check for rust around the clutch plate, check the wiring to the clutch, and check the compressor clutch relay) Turn On the Engine Inspection. AC worked fine for 3 years before this. Quote. Climate Control Electrical Issue. I got it regassed to 500g and the econ light went out, however the air was not cold enough - ac not working Approximately 2 weeks ago i got the ac gas level checked again as the Econ light Mar 2, 2023 · 3. Today it suddenly stopped working - compressor clutch will not engage, the compressor shaft feels normal and spins freely. Sep 12, 2009 · 1 post · Joined 2010. it did not solved the problem. This is by far the most common issue as to why your AC is not working. if not, i have no idea. Push on the new one, circlip on, outer pulley may need some lube to go back over the rubber. Faulty sensor? Split wire perhaps? All/any help appreciated. A faulty thermostat might send incorrect signals to your AC’s compressor, causing it to run continuously, even when the room has reached or even dropped below the set temperature. Cleaning or Replacing Dirty Coils and Filters. Dec 26, 2017 · 1. Got the below code with VCDS. The button light won’t stay on. Check Thermostat Settings. Benefits of Professional Servicing. ’. In the event you have spotted any unpleasant odours coming from the air conditioning in your Audi A4, don’t hesitate to consult our article content on this Jul 15, 2021 · 49,869. Jun 4, 2017 · Only had the car a few months (B8. Listen for unusual noises coming from the AC. Likes: 4. com Jun 12, 2020 · 08-30-2015 02:12 AM. Sep 16, 2022 · If there is a leak in the compressor, it could also cause the clutch to stay engaged. I got an independent Air con specialist to diagnose it and do the work. #21. There are eight triggers leading to the AC compressor not building pressure, including bad compressor clutch, faulty gasket, failed pump, expansion valve blockage, compressor pulley bearing, ac compressor speed sensor, compressor clutch relay, and compressor with an internal leak. Test Thermostat Functionality. AC does not cool - appears compress ore is not activating because no noticable change in engine load when toggling AC switch on dash. Power. I just join and I would like to ask your support for an issue I have: My AC doesn't start. Audi 4f 20tdiAc compressor 05-06 audi a4 b7 Audi a4 b7 ac compressorCompressor audi ac replacement call now. Your AC might not be cold enough due to: Problems with the blower motor, condenser, or evaporator. there is a low-pressure switch connecter, make sure it's plugged in to the condenser cylinder. AC System Not Blowing Cold Enough. The AC system on my 1997 Audi A4 quattro 2. Thanks mitch. A/C Compressor clutch relay. Pop the hood with the engine running and turn the thermostat way down on the HVAC controls with the AC button off. No codes came up after my AC stopped working, so took it into the shop to get a recharge. On older cars, bypassing the lower pressure switch activated the compressor clutch. 8T just rolled over 100K recently and some issues are starting to creep up after 15 years of mostly reliable service. Turned on the a/c and just blows hot air. 05-12-2020, 04:31 PM. Mar 14, 2014 · The sign of a pumping system is that the pump has a low enough pressure on the inlet side to draw from the can and you have a high pressure on the outlet. Less common causes are clogged expansion valve or orifice tube, overcharged oil, faulty blend door Jul 7, 2017 · 17 posts · Joined 2016. Jun 4, 2019 · Usually that’s a result of component problems rather than loose connections or mold accumulation. If there is a leak, you will see a bright Feb 24, 2020 · Switch off the air conditioning in your Audi A4 5 minutes before turning off the engine to maintain your air conditioning compressor and avoid moisture odors in the passenger compartment. Resetting the Circuit Breaker. Sep 14, 2019 · Your engine temperature sensor is responsible for relaying your engine temp to the ECU. th Feb 29, 2024 · A4 (B5 Platform) Discussion - IT: AC is not starting - Hi, everybody. Jan 11, 2019 · Just picked up a 2015 S4 Technik 6MT. This can overheat your compressor, causing unit wide damage. Buy online or call toll free. Incorrect settings can lead to the compressor not kicking on. 889491. Also, burnt odors or visible damage on the motor are other signs of failure. Apr 17, 2024 · The process is simple if you know what you are up to. There's a low pressure sensor and a high pressure sensor on the AC, if either of those are triggered the compressor wont engage and the AC will refuse to come on. Put some good loctite on the 10mm screw (mine actually came out and the pulley disapeered completely!). Turn the ignition to on, but do not start the engine. Feb 27, 2005 · Re: AC condensor fan not turning on. #2 · Feb 7, 2016. Two minutes later we get back in and the AC is “on” but not cooling/blowing ambient Charlotte NC lava-temp summer air. Pressure sensor. This is the main signal for the variable displacement compressor output volume according to the heat transfer load on the system. hooked up a meter to the plug that Sep 16, 2022 · The most common causes for AC not cooling properly in Audi A4 are low or overcharged refrigerant, compressor malfunction, clogged cabin air filter, dirty condenser or evaporator coils, dirty or sluggish blower motor, and bad fuse or relay. Low Refrigerant in the AC System. For audi a4 car ac compressor, car air conditioning, model name/numberAudi compressor ac a4 replace Ac a/c compressor fits audi a4 a6 2. 9TDI, B7 My AC stopped working approximately 8 weeks ago, the econ light would not go out. Dirty condenser coil. Also if the clutch moved and the compressor started you will hear the sound of the compressor if you start your engine and a/c. Sep 1, 2022 · Here are 10 common reasons why the A/C compressor won't turn on. AC compressor clutch. Posts: 1,555. 5) and just when I needed the aircon, it wouldn't turn on :cry: The light comes on when pressed, but goes off when released. Here lies the question (s). Replacing a Faulty Capacitor. It was also corroded which didn’t help. From best I can tell, the compressor clutch should not be engaged while the AC system is off. Freon leaking due to a bad hose, o-ring, or seal. USA. Like. Apr 25, 2009 · If it is not seeing any pressure because the AC compressor is bad then it has no reason to turn on the fans. Climate control module is reporting two faults: - 00256 - A/C Pressure/Temperature Sensor (G395) 008 - Implausible signal. "there is not enough refrigerant. Found low refrigerant pressure at 0. Put the compressor back on, refit undertray. Turn the a/c off. Apr 23, 2023 · 2011 Hyundai Tucson with Air Conditioning blowing warm air, the system is is fully charged with refrigerant and the A/C magnetic clutch is not engaging. Change the air filter. Shut off the engine by turning the key to the “off” position. Feb 22, 2024 · Procedure. The most common reasons an Audi A4 ac isn't working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. There is also a 5amp fuse you can check that is located on the bottom of the area - its the lowest thing under Oct 18, 2015 · How to recharge the A/C System on AUDI A4 B6. Two days prior I saw the coolant temperature go past the middle point for the first time in Jul 15, 2021 · After inspecting the belt, there can only be two things left that could be happening: 1. My 99. Location. Inspect low coolant content or pressure. These are figures are for an average vehicle. Reaction score. remove the passenger side headlight and look down. You increase the chances of ending up with a faulty AC compressor with it. Dec 29, 2023 · The compressor works hard. Evaluating the Thermostat. Audi A4 AC Compressor - Air Conditioning - GPD UAC Four Seasons Denso Nissens DENSO API Autopart Premium - 2008 2005 2007 2004 2017 2006 2011 2003 08 05 07 04 17 06 11 03 - PartsGeek Check the Thermostat. . Oct 25, 2023 · Park your Ford Fusion in a safe and flat area. Make sure that your thermostat is set to “cool” mode and the temperature is set lower than the current room temperature. Double-check your work before turning the AC on to test it. Found fault in AC system for B10AE21" High Pressure sensor lower limit not reached static. co. 2002 A4 quattro 3. r-134a is fully charged. HC100001. 0l 3. Examine Wiring for Damage. I thought it was the AC module, so I ordered one used one. Have someone turn the AC on and listen closely for the click of the clutch on the compressor as it turns on. If they don’t move smoothly or there’s noticeable resistance, the motor might be defective. If it is and you have no pressure then the pump is suspect. Feb 5, 2023 · Audi Year: 2016. 34,109. If your A4 has a bad engine temp sensor the radiator fan won’t know to come on, because the ECU won’t know how hot the engine is. Oct 27, 2018 · My a/c stopped blowing cold all of a sudden. 5 A4 1. Mode: Make sure your thermostat is set to ‘Cool’ and not ‘Heat’ or ‘Off. Start the engine and turn on the AC. 1. You are either too low on freon, you have a power/ground issue meaning the compressor isn’t receiving the signal to turn on, or the clutch itself is bad. 04-18-2002 03:05 PM. #3 · Oct 12, 2010. May 31, 2018 · Thread Starter. The techs there had discovered that the compressor itself is no longer working (not engaging). Leaks must be corrected as well. 3. 2. TT (Mk1) Discussion - AUDI TT AC NOT WORKING HELP!!! - Hey On my 2000 audi tt 1. Low amounts of AC freon refrigerant will be detected by the AC pressure sensor switch, causing the AC not to kick in. However, this problem is also caused by low refrigerant levels, which should be checked regularly. - 00457 - Control Module for Network (J519) 013 - Check DTC Memory. AC compressor clutch not engaging. Examine Wiring and Capacitors. Follow the instruction manual. Yet, it has to work much harder when you neglect air conditioning maintenance. Aug 30, 2023 · RECONNECT, STILL NO OPERATION FROM A/C COMPRESSOR. 06:32 AM. Change the capacitor. 1 (855) 347-2779 · hi@yourmechanic. 37 % of the time it's the. You’ll need to locate and test the engine temp Image Source: Wikimedia Commons. I try turning the fan up and down, close the vents, open vents and still no air. the two relays he is talking about are located in the 8 way relay carrier under the driver side knee bolster. Let’s take some time and explain all 8 reasons why your car’s air conditioning compressor won’t turn on. Audi A5 / S5 / RS5 Coupe & Cabrio (B9) - 2018 A5 - AC NOT blowing cold - This past weekend I noticed the AC was not cold. Checked fuses, all good. J519 is Jul 20, 2018 · Here's the service writeup: Verified AC will not turn on. My mechanic says that it's not ON even if we let the button pressed. 0L 3. Ice cold, circulating properly, compressor engaging when it should and everything. A very common problem that occurs is the air conditioner stops producing cold air. - added refrigerant, flushed system, added Audi A4 Quattro. 2001 TT225: High and low pressure side show 100 psi (so should be enough pressure to close the low pressure switch). was blowing cold and then suddenly stopped and was blowing warm air. We offer high quality new, OEM, aftermarket audi a4 ac compressor parts. Checking Electrical Connections. Clean the condenser coil. Step 7: Go to the professional place (unless you have a manifold set and vacuum pump) and evacuate the system (should be a minimum of 30 minutes). Sep 11, 2014 · A/C compressor has no power. com. 6 2. The Audi A4 AC compressor replacement cost can therefore be highly variable. Dec 5, 2023 · If your car is not pdtdi the noise the clutch makes is louder and you can hear it with the engine running. 8 Manual Sedan with 130,000 miles. 8l ATQ engine. When the compressor doesn’t turn on at all, it can mean a couple different things. 0t, Brilliant Black, APR Ko4, AWE Touring catback exhaust, AWE downpipe, 034 HFC, Kohlefaser Luft-Technik Intake System, Wagner competition Sep 13, 2022 · PT: AC Not turning on! Hey guys, I'm new here! Wanted to find help regarding a problem that is happening in my old Audi A4 B5 8D0 1995: When I press the AC button, it won't stay ON. Audi dealer and Halfords were useless. AC Compressor Replacement. 07:27 PM. Address 08: Auto HVAC (J255) Do a Visual Inspection of the compressor: (Check for rust around the clutch plate, check the wiring to the clutch, and check the compressor clutch relay) Turn On the Engine Inspection. To check for a leak, you can use a UV light to look for any refrigerant leaks. It is akin to having a faulty speedometer in your car, where you’re unaware of when to speed up or slow down. 0L CAR A6 3. Vacuum leaks. Came to the car 2 days later ( yesterday ) and found the Image Source: Wikimedia Commons. -or-. 1)Compressor does engage/disengage with corresponding input from control head ( you set for low temp, compressor comes on, when you push econ, or raise temp condition compressor turns off) 2)There seems to be an initial push of cold air Apr 26, 2023 · What Causes AC Compressor Running But No Pressure Change. Neo1130. Fans running (so not the big 30 Amp fuse on top of battery). Step 6: Replace accumulator (should be the last thing you do). REC TO REPLACE A/C COMPRESSOR. I press the AC button and the red light will come on, and stay on the you continue to hold it, but will turn off the moment you release the button. 2 independent German car garages both quoted £720. Note that there also is a high-pressure line. Sent from my iPhone using Tapatalk. Audi A4 Quattro. Put your ear to the vent and listen. Apr 8, 2015 · If the compressor is not running, the pressure on the high and low side will be the same. Jan 18, 2023 · What to do when your AC compressor isn’t turning on. Don’t use that line. But on these '3 pin' systems, the compressor may not have a clutch anymore, but rather is duty cycled by the module. Since a large percentage of the bill is for the part if you find the Audi A4 AC compressor not turning on, online suppliers can save Apr 20, 2022 · Received 47 Likes on 47 Posts. May 30, 2016 · If your HVAC will not turn on, but you hear a humming sound from your outdoor unit, it is likely that this is the compressor attempting to access a non-functioning capacitor. Identifying Complex Issues. Turn the AC off and you should hear it click again. A new condenser is £730 from Audi. You may have a leak. Start by disconnecting the AC unit from the electrical source, remove the panel to access the capacitor, check the voltage and capacitance rating, order a replacement, discharge the existing capacitor, remove it, and replace it. A faulty thermostat can cause an air conditioner to stop working. 0l 2002-2005 98354 983482. 5 B5 A4 1. Took me about half an hour. Do the radiator fans come on low speed? 3. 0 %. Evening all! I have a problem with my air conditioning on my A5. Sep 22, 2021 · 04:57 PM. Location: Brighton, MI. Verified the compressor was NOT engaging and went to work on the googles. A leaking compressor will not be able to build up enough pressure, which will cause the low-pressure switch to keep the clutch engaged. Addressing Refrigerant Leaks. The clutch is not getting a signal to turn on. How to Take Care of Your AC Compressor: AC Compressor Maintenance 1. You will need a set of AC pressure gauges to check the following. An air conditioning system, using several components, includes a compressor to pressurize a chemical called freon, and drastically lower its temperature. Using a Multimeter to Test the Capacitor. Aug 25, 2010 · Forum Rules. Vacuumed system down successfully. If you hear unusual noises, it’s a big sign that your compressor isn’t working properly. It could be that the clutch is broken or screws holding the compressor in place are loose. 8 FWD the other day my ac stopped working while on the highway. The surrounding air then also cools, and in turn keeps you Jul 15, 2021 · After inspecting the belt, there can only be two things left that could be happening: 1. The most common reason for your Audi A5’s AC not blowing cold enough is low refrigerant levels, followed by a dirty evaporator or condenser issues (bad or clogged). Mar 3, 2024 · audi a4 ac compressor not turning on diagnosis Jan 21 2023 web jul 15 2021 1 the clutch is not getting a signal to turn on this indicates some form of wiring problem Jan 6, 2016 · Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. The AC compressor is getting a command to turn on but is no longer able to, which would indicate that it needs replacing. Troubleshooting Window AC Compressor Not Turning On. If the system was working correctly the ac would turn on and you would feel cold air and as the pressure in the system rises (pressure causes heat ) the sensor will tell the fan control module to turn the fans on. I've been trying to repair after some front end damage. ld zq qv bm jw kg pi xd mv wr