Compressor 1K0-820-808-G
Neglecting a failing compressor can lead to further system damage, higher repair costs, and a loss of cooling efficiency. Signs of a problematic compressor include unusual noises, leaking refrigerant, or an inability to cool the cabin effectively. Timely replacement is essential to restore proper cooling performance and prevent additional complications.
Choosing an OEM compressor with part number 1K0-820-808-G ensures it meets the rigorous standards of the original manufacturer. This component is engineered for seamless integration within the AC system, offering long-lasting reliability that aftermarket parts may not consistently provide.
Available in Stores
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Leith Volkswagen
Official Dealer
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$867 |
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Volkswagen
New
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$808 $641 | |
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https://avtohype.com.ua/
New
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$139 | |
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Reydel VW of Linden
New
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$750 $675 |
| Seller | Price | Action |
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AutoJapan
Used
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$59 | |
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Awtozap
Used
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$69 | |
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AutoLuzk
Used
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$109 |
| Seller | Price | Action |
|---|---|---|
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Lewisville Volkswagen
New
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$749 $674 |
| Seller | Price | Action |
|---|---|---|
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mkowalow1
Used
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$137 | |
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czak-net_czesci
New
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$37 | |
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mototransKC
New
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$196 |
Vehicle Fitment
Vehicles confirmed compatible with this part
Technical Specifications
| OEM Part Number | 1K0-820-808-G |
|---|---|
| Manufacturer | Sanden |
| Part Type | A/C Compressor Assembly |
| Includes | Electromagnetic clutch, hub, pulley, bearing, pressure relief valve |
| Refrigerant Type | R-134a |
| Drive Type | Serpentine belt driven |
| Clutch Type | Electromagnetic |
| Compatible Engine | 2.5L (primary application) |
| Pressure Relief Valve | Included |
| Application Years | 2005–2014 |
Supplied as a full compressor assembly with an integrated electromagnetic clutch, hub, pulley, and bearing — no separate clutch purchase required.
Includes an internal pressure relief valve that protects the A/C system from over-pressurization, helping prevent costly downstream component damage.
Manufactured by Sanden, the original equipment supplier, ensuring dimensional accuracy, refrigerant compatibility, and durability matched to factory specifications.
Compatible Aftermarket Alternatives
The following aftermarket parts are confirmed direct equivalents for OEM 1K0-820-808-G, cross-referenced from major manufacturer catalogs.
| Manufacturer | Part Number | Notes | Dimensions (mm) |
|---|---|---|---|
| Sanden | 1K0-820-808-G | OEM-equivalent unit from the original equipment manufacturer. Complete assembly with electromagnetic clutch and pressure relief valve. Direct bolt-in replacement designed for R-134a systems. Recommended | — |
| Nissens | 1K0-820-808-G | Aftermarket direct replacement manufactured to OE standards. Features advanced pulley, clutch, hub, bearing, and wobble plate design for high-stress performance. | — |
| Volkswagen OEM | 1K0820808G | Genuine dealer-sourced OEM part. Highest assurance of fit and factory certification. Typically the highest price option but ensures full OEM compatibility. | — |
Always verify fitment against your VIN before ordering.
How to Replace the Compressor
Replacing the 1K0820808G A/C compressor requires recovery of existing refrigerant, removal of accessory drive components, and a proper system evacuation and recharge. This job is best performed by a technician certified in refrigerant handling. The following steps outline the general procedure for VW/Audi 2.5L applications.
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Prepare the Vehicle
Park on a level surface and allow the engine to cool completely. Disconnect the negative battery terminal to eliminate electrical hazards before beginning work near the compressor clutch wiring.
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Recover Refrigerant
Using EPA-approved refrigerant recovery equipment, recover all R-134a refrigerant from the A/C system. Do not vent refrigerant to the atmosphere — this is illegal and environmentally harmful. Note the recovered volume for reference during recharge.
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Remove Accessory Belt and Obstructing Components
Release serpentine belt tension and remove the belt from the compressor pulley. Remove any brackets, covers, or ancillary components required to gain clear access to the compressor mounting bolts and line fittings.
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Disconnect Electrical Connector and Refrigerant Lines
Unplug the electromagnetic clutch electrical connector. Cap or plug the refrigerant line fittings immediately upon disconnection to prevent moisture and debris from entering the open system.
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Remove the Old Compressor
Unbolt the compressor from all mounting points and carefully extract it from the engine bay. Note the orientation and routing of refrigerant lines for reinstallation reference.
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Install the New Compressor
If required by the new compressor's instructions, drain and adjust the oil charge. Position the 1K0820808G replacement, secure all mounting bolts, reconnect the refrigerant lines with new O-rings lubricated with refrigerant oil, and plug in the clutch electrical connector. Reinstall the serpentine belt and any removed components.
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Evacuate and Recharge the A/C System
Using a vacuum pump, evacuate the A/C system for a minimum of 30 minutes to remove air and moisture. Recharge with the vehicle-specific quantity of R-134a refrigerant as specified in the service manual.
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Test the System
Reconnect the battery. Start the engine and activate the A/C system. Verify clutch engagement, check for proper cooling output, and inspect all connections for refrigerant leaks using a leak detector or UV dye inspection.
Signs of a Worn Part
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Warm Air from Vents
The most common sign of compressor failure is the A/C system blowing warm or ambient-temperature air because the refrigerant is no longer being pressurized and circulated.
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Loud Noise When A/C is Engaged
Grinding, squealing, or rattling noises when the A/C compressor clutch engages typically indicate failing internal bearings, a seized compressor body, or a worn clutch assembly.
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Clutch Not Engaging
If the electromagnetic clutch fails to engage when the A/C is switched on — either due to electrical failure or low refrigerant pressure shutting off the system — the compressor will not cycle and cooling will be absent.
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Visible Refrigerant Oil Leaks
Oily residue around the compressor body, shaft seal, or line fittings indicates a refrigerant and oil leak, which will gradually reduce system performance and can lead to compressor seizure if oil levels drop too low.
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Abnormal System Pressure Readings
Unusually high or low high-side and low-side pressure readings during manifold gauge testing can point to an internally failing compressor that is no longer pumping refrigerant efficiently.
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A/C Cycling On and Off Rapidly
Rapid short-cycling of the compressor clutch may indicate low refrigerant charge caused by a leak at the compressor shaft seal or a failing pressure relief valve on the unit.
Replacement Intervals
A/C compressor longevity is significantly impacted by refrigerant charge level. Running the system with a low refrigerant charge starves the compressor of lubricating oil and accelerates internal wear. Address refrigerant leaks promptly to maximize compressor service life.
Frequently Asked Questions
Does the 1K0820808G come with the clutch included?
Yes. This part is supplied as a complete assembly that includes the electromagnetic clutch, hub, pulley, and bearing pre-assembled on the compressor body. No separate clutch kit purchase is necessary.
What vehicles is the 1K0820808G compatible with?
This compressor fits a wide range of VW and Audi models from approximately 2005 to 2014, including the VW Beetle, Beetle Convertible, Golf, Jetta, Jetta Wagon, Passat, Rabbit, and SportWagen (primarily 2.5L engines), as well as the Audi TT 2.5L (2012–2013). Always confirm fitment using your specific vehicle's year, make, model, and engine size.
What refrigerant does this compressor use?
The 1K0820808G is designed for R-134a refrigerant systems. Do not use R-1234yf or any other refrigerant type, as it is not compatible with this compressor or the seals and oils in the original system.
Should I replace other A/C components at the same time?
It is strongly recommended to replace the receiver-drier or accumulator whenever the A/C system is opened, as the desiccant becomes saturated upon air exposure. New O-rings at all line connections and an inspection of the condenser and expansion valve are also advisable to ensure the new compressor is not damaged by debris or moisture from a compromised system.
Can I replace the 1K0820808G myself, or does it require a professional?
Due to the legal requirement for certified refrigerant recovery and recharge equipment, this job is best performed by a professional technician holding an EPA 609 certification. While the mechanical removal and installation steps are straightforward, handling R-134a refrigerant without proper equipment is illegal and unsafe.
Is the Sanden aftermarket version the same quality as the OEM dealer part?
Sanden is the original equipment manufacturer of this compressor for VW and Audi, meaning the aftermarket Sanden unit is built to the same engineering standards as the part originally installed at the factory. It represents an excellent balance of OEM-grade quality and competitive pricing compared to dealer-sourced genuine VW/Audi parts.
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