2011-2018 Audi A6/A7/A8/RS7/S6/S7/S8 AC Expansion Valve 4G0820181A

OEM Part #: 4G0-820-181-A (4G0820181A)

$6.68
Used
Donor2014 Audi A7 · 3.0L
SKU: 500962 · 30-Day Returns
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AC Expansion Valve 4G0820181A — Used (SKU 500962)
Genuine OEM Used SKU: 500962 Donor Vehicle: 2014 Audi A7 · 3.0L 2 photos
$6.68
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AC Expansion Valve 4G0820181A — Used (SKU 589398)
Genuine OEM Used SKU: 589398 Donor Vehicle: 2013 Audi S6 · 4.0L 2 photos
$6.68
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AC Expansion Valve 4G0820181A — Used (SKU 636888)
Genuine OEM Used SKU: 636888 Donor Vehicle: 2018 Audi S6 · 4.0L · 73k miles 2 photos
$8.49
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This is a used OEM Audi AC Expansion Valve, part number 4G0820181A, also superseding 4H1898967. This valve controls the flow of refrigerant into the evaporator, regulating the air conditioning system's cooling performance. When this expansion valve fails or becomes restricted, a common symptom is inconsistent cabin temperatures—the AC may blow warm on one side and cold on the other, or the compressor may cycle erratically. It was removed from an Audi A6, A7, or A8, and is compatible with a range of engines including the 3.0L supercharged V6 and the 4.0L twin-turbo V8.

Specifications

Specifications for AC Expansion Valve 4G0820181A
Fits Vehicle ModelA6, A7, A8, RS7, S6, S7, S8
Fits Vehicle MakeAudi
OEM Part No4G0-820-181-A (4G0820181A)
Compatible OEM Part No 4H1-898-967
CategoryAir Conditioning

Compatible Vehicles

Fits 83 vehicle configurations across 1 make, 2011-2018.

Check your specific vehicle before ordering. This list shows year, make, and model. Some years have multiple trims or engines that use different parts, and individual listings may have additional fitment notes (e.g. “with sunroof only”). Review the full variant list below, or message us with your VIN and we’ll confirm the match.

Audi

  • A6 2012-2018 · 23 variants
  • A7 2012-2018 · 8 variants
  • A8 2011-2018 · 30 variants
  • RS7 2014-2018 · 5 variants
  • S6 2013-2018 · 6 variants
  • S7 2013-2018 · 5 variants
  • S8 2013-2018 · 6 variants
View all 83 vehicle configurations
Full vehicle fitment list for AC Expansion Valve 4G0820181A
Year Make Model Trim Engine Note
2011 Audi A8 Quattro Sedan 4.2L V8
2011 Audi A8 Quattro L Sedan 4.2L V8
2012 Audi A6 Sedan 2.0L l4 Turbo
2012 Audi A6 Quattro Sedan 3.0L V6 Supercharged
2012 Audi A7 Quattro Hatchback 3.0L V6 Supercharged
2012 Audi A8 Quattro Sedan 4.2L V8
2012 Audi A8 Quattro L Sedan 4.2L V8
2012 Audi A8 Quattro L Sedan 6.3L W12
2013 Audi A6 Sedan 2.0L l4 Turbo
2013 Audi A6 Quattro Sedan 2.0L l4 Turbo
2013 Audi A6 Quattro Sedan 3.0L V6 Supercharged
2013 Audi A7 Quattro Hatchback 3.0L V6 Supercharged
2013 Audi A8 Quattro Sedan 3.0L V6 Supercharged
2013 Audi A8 Quattro Sedan 4.0L V8 Turbo
2013 Audi A8 Quattro L Sedan 3.0L V6 Supercharged
2013 Audi A8 Quattro L Sedan 4.0L V8 Turbo
2013 Audi A8 Quattro L Sedan 6.3L W12
2013 Audi S6 Sedan 4.0L V8 Turbo
2013 Audi S7 Hatchback 4.0L V8 Turbo
2013 Audi S8 Sedan 4.0L V8 Turbo
2014 Audi A6 Sedan 2.0L l4 Turbo
2014 Audi A6 Quattro Sedan 2.0L l4 Turbo
2014 Audi A6 Quattro Sedan 3.0L V6 Supercharged
2014 Audi A6 Quattro Sedan 3.0L V6 Diesel Turbo
2014 Audi A7 Quattro Hatchback 3.0L V6 Supercharged
2014 Audi A7 Quattro Hatchback 3.0L V6 Diesel Turbo
2014 Audi A8 Quattro Sedan 3.0L V6 Supercharged
2014 Audi A8 Quattro Sedan 4.0L V8 Turbo
2014 Audi A8 Quattro L Sedan 3.0L V6 Supercharged
2014 Audi A8 Quattro L Sedan 4.0L V8 Turbo
2014 Audi A8 Quattro L Sedan 3.0L V6 Diesel Turbo
2014 Audi A8 Quattro L Sedan 6.3L W12
2014 Audi RS7 Hatchback 4.0L V8 Turbo
2014 Audi S6 Sedan 4.0L V8 Turbo
2014 Audi S7 Hatchback 4.0L V8 Turbo
2014 Audi S8 Sedan 4.0L V8 Turbo
2015 Audi A6 Sedan 2.0L l4 Turbo
2015 Audi A6 Quattro Sedan 2.0L l4 Turbo
2015 Audi A6 Quattro Sedan 3.0L V6 Supercharged
2015 Audi A6 Quattro Sedan 3.0L V6 Diesel Turbo
2015 Audi A8 Quattro Sedan 3.0L V6 Supercharged
2015 Audi A8 Quattro Sedan 4.0L V8 Turbo
2015 Audi A8 Quattro L Sedan 3.0L V6 Supercharged
2015 Audi A8 Quattro L Sedan 4.0L V8 Turbo
2015 Audi A8 Quattro L Sedan 3.0L V6 Diesel Turbo
2015 Audi A8 Quattro L Sedan 6.3L W12
2015 Audi RS7 Hatchback 4.0L V8 Turbo
2015 Audi S6 Sedan 4.0L V8 Turbo
2015 Audi S8 Sedan 4.0L V8 Turbo
2016 Audi A6 Sedan 2.0L l4 Turbo
2016 Audi A6 Quattro Sedan 2.0L l4 Turbo
2016 Audi A6 Quattro Sedan 3.0L V6 Supercharged
2016 Audi A6 Quattro Sedan 3.0L V6 Diesel Turbo
2016 Audi A7 Quattro Hatchback 3.0L V6 Supercharged
2016 Audi A7 Quattro Hatchback 3.0L V6 Diesel Turbo
2016 Audi A8 Quattro L Sedan 3.0L V6 Supercharged
2016 Audi A8 Quattro L Sedan 4.0L V8 Turbo
2016 Audi A8 Quattro L Sedan 3.0L V6 Diesel Turbo
2016 Audi A8 Quattro L Sedan 6.3L W12
2016 Audi RS7 Hatchback 4.0L V8 Turbo
2016 Audi S6 Sedan 4.0L V8 Turbo
2016 Audi S7 Hatchback 4.0L V8 Turbo
2016 Audi S8 Sedan 4.0L V8 Turbo
2017 Audi A6 Sedan 2.0L l4 Turbo
2017 Audi A6 Quattro Sedan 3.0L V6 Supercharged
2017 Audi A6 Quattro Sedan 2.0L l4 Turbo
2017 Audi A7 Quattro Hatchback 3.0L V6 Supercharged
2017 Audi A8 Quattro L Sedan 3.0L V6 Supercharged
2017 Audi A8 Quattro L Sedan 4.0L V8 Turbo
2017 Audi RS7 Hatchback 4.0L V8 Turbo
2017 Audi S6 Sedan 4.0L V8 Turbo
2017 Audi S7 Hatchback 4.0L V8 Turbo
2017 Audi S8 Sedan 4.0L V8 Turbo
2018 Audi A6 Sedan 2.0L l4 Turbo
2018 Audi A6 Quattro Sedan 2.0L l4 Turbo
2018 Audi A6 Quattro Sedan 3.0L V6 Supercharged
2018 Audi A7 Quattro Hatchback 3.0L V6 Supercharged
2018 Audi A8 Quattro L Sedan 3.0L V6 Supercharged
2018 Audi A8 Quattro L Sedan 4.0L V8 Turbo
2018 Audi RS7 Hatchback 4.0L V8 Turbo
2018 Audi S6 Sedan 4.0L V8 Turbo
2018 Audi S7 Hatchback 4.0L V8 Turbo
2018 Audi S8 Sedan 4.0L V8 Turbo

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