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If the smell is only noticeable when the A/C is on, it’s probably because your vehicle lacks A/C compressor oil. Separate measures with respect to storing and handling the new refrigerants must certainly also be observed. In a more modern vehicle, it is likely that a variable displacement compressor will be fitted and these utilise a swash plate that can change its angle and increase or decrease the movement of the pistons and hence, the flow rate. Most times this will involve draining and measuring the oil from the failed compressor, then adding a specific volume of new oil to the replacement compressor. Only specially trained professionals should carry out work on air conditioning systems, taking into account the relevant safety precautions and country-specificlegislation.
Popular compressors like the TSP0155997, fitted to key applications such as VW Golf, Beetle, Seat Ibiza, Leon, and Audi A1, A3 are also filled with a new oil that is compatible with both R134a and R1234yf refrigerants. To wet seals during assembly, apply Liqui Moly PAG Air Conditioning System Oil 46 with a brush to ensure that the system is well sealed. The high viscosity index ensures excellent low temperature flowability and a stable film at high temperatures, confirming the maximum efficiency under all operating conditions. For a pound more I would certainly recommend the longer lines, you don't want to arse around trying to place the set of gauges on some vibrating engine part when you can hook it onto the bonnet catch. For this reason, PAG oil should never be used to lubricate O-rings, compressor shaft seals or refrigerant line joints.The information in the following tables has been compiled using data from vehicle manufacturers and other sources, and it is applicable only to air conditioning systems in their original designs. If you think the 'new' compressor is pretty empty then, if it were me, I would put half the total amount in and cross my fingers. When you blow through the system remove the drier before connecting the line from the Nitrogen to the system. PAG air conditioning oils must be collected separately and disposed of in accordance with the waste code (see safety data sheet).
These oils have varying levels of viscosity and lubrication, meaning they can interact with your car’s A/C compressor differently. Having a robust air conditioning system that can keep your car at the right temperature is absolutely crucial. Can be used as an alternative to the various PAG oils that are offered for R134a (has the advantage of not being hygroscopic—i.Manufactured from a reversible chemical reaction between acids and alcohol to form polyolesters and water, POE lubricants are less hygroscopic than PAG ones, however if exposed to large quantities of water there’s a risk of a natural reverse reaction leading to acid formation and corrosion of system components. No part of this table may be reproduced in any form—mechanical, electronic, photocopy, microfilm,or otherwise, including extracts thereof—without our written permission. Providing high lubricity and chemical stability with system components, POE also offers good miscibility (the ability to mix with refrigerants and HFCS). The different types of PAG such as PAG46, PAG100 etc… reflect the varying oil viscosity (the measure of an oil’s resistance to flow) and the refrigerant it’s designed for. POE oil: Polyolester, ester or POE oil, has also been around for some time, however, up until now it has not been recommended by many manufacturers because it does not perform well in high heat, load conditions and it absorbs moisture.
The Data User shall refrain from copying and disseminating the data or the database as a whole and / or from causing such acts to be carried out by third parties, without TecDoc's prior consent. Our ASE-certified mechanics can routinely check your car’s A/C compressor oil to make sure it gets changed when necessary. Register for our free HELLA TECH WORLD newsletter to stay up-to-date with the latest technical videos, car repair advice, trainings, diagnostic tips and marketing campaigns.
Most if not all OEM compressors will come pre-filled with oil, but it is up to the person installing the compressor to check that the correct amount of oil is in the compressor. As would be expected from the global leader in thermal management, every DENSO compressor not only encompasses a notification to define its mechanism, but also states the lubricant required, which in some cases, such as its unique ND-Oil 8 formula, has been specially developed to meet the specific requirements of DENSO reciprocating and scroll compressors, which ordinary PAG 46 oil simply cannot attain. Our professionals can use the right compressor oil for your car to ensure that your air conditioning works smoothly. If your vehicle lacks compressor oil, there will be some telltale signs like humming sounds, refrigerant leaks, burning smells, and visible smoking. The only time the Environment Agency gets jumpy is when anybody just cracks open any joints in the system.
There are several types of PAG oil based on the viscosity of the oil -- PAG46, PAG100 and PAG150 -- and the type of refrigerant it is designed for. Of a similar era is the through-vane compressor that also operates on a fixed output per rotation basis and therefore, likewise, employs a clutch pulley.Although they all fulfil the same function, there are several types – reciprocating (piston) and rotary – of compressors and which is fitted is broadly dependent on the age and therefore, development of the air conditioning system in the vehicle. Once you have ascertained the approximate amount of oil that's been blown out you could, if you really want to, remove an amount of oil. Once the compressor is filled with the correct oil, the front hub should be turned manually by hand to ensure that a thin film of oil covers the internal pistons and components of the compressor. This, coupled with the fact that the compressor is pre-filled, will help to ensure a best-practice repair, whilst saving garages both time and money.
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