United States
Product overview
Genuine OEM Audi Refrigerant Circuit Expansion Valve, part number 4M0820181B. This critical component controls the flow of refrigerant within the air conditioning system, ensuring efficient cooling and proper pressure regulation. It is specifically designed for the rear AC circuit. Constructed from robust aluminum, this valve measures approximately 8.2 cm in length and weighs 0.181 kg. Opting for a genuine OEM expansion valve guarantees precise factory calibration and material integrity, essential for the optimal function and longevity of the vehicle's climate control system.
Catalogue entry: EXPANS VAL.
Technical details
- Category
- Heating & A/C
- Customs (HS) code
- 84818059
- Manufacturer
- Audi
- Product Type
- Genuine new auto parts
- Shipping size (L × W × H)
- 8.2 × 6.2 × 3.5 cm
- Shipping weight
- 0.18 kg
Specifications
As recorded in the manufacturer’s parts catalogue for this part number.
Equipment codes
- KK1
PR codes identify the factory option a part belongs to; your vehicle’s are listed on the data sticker in the boot well or service booklet.
Why buy from WW Spares?
- ✓ Genuine OEM inventory sourced directly from factory networks
- ✓ Fitment support from workshop-seasoned parts specialists
- ✓ Global logistics with customs-ready documentation
Need help confirming compatibility? Talk to a specialist
Parts diagram & fitment
3 vehiclesExpansion Valve — locate 4M0820181B Audi Refrigerant Expansion Valve | Rear in the official exploded view and explore the surrounding assembly.
Parts in this assembly25
- 1Basicplate 4M0820339G
- 2Line 4M8816886
- 3Seal Ring 3D0260749C
- 4Seal Ring 4E0260749B
- 5Line 4M0816885F
- 7Expans Val 4M0816181A
- 8Line 4M0816725D
- 9Seal Ring 4E0260749A
- 10Seal Ring 4D0260749B
- 11Line 4M0816727D
- 12Seal Ring 4E0260749C
- 14Plate 4M0820251B
- 15Collar Nut N10609201
- 16Bolt N10632102
- 17Bracket 4M0820769H
- 18Mounting 4F0129669
- 19Bush 1K0129734B
- 20Screw N10582103
- 21Ut Hexagon Flange Nut Self-locking Hexagon N90887703
- 22Screw N10723801
- 23Collar Nut N01508210
- 24Bracket 4M0820769E
- 25Collar Nut 171201969
- 26Part 8D0201441C
- 27Bracket 4H0260759E
Compatible / alternative parts(1)
Vehicle fitment table3
Europe (3)
| Vehicle | Years | Pos. | Qty | Remark | PR |
|---|---|---|---|---|---|
| Audi RS Q8 Quattro | 2019- | 7 | 1 | PR:KK1 | 9AQ |
| Audi Q8 Quattro 3,0 | 2018- | 7 | 1 | PR:KK1 | 9AQ |
| Audi Q7 qu. 3.0 TDI | 2015-2019 | 7 | 1 | KK1 |
Diagrams & fitment data powered by oemdiagrams.com
4M0820181B Audi Refrigerant Expansion Valve | Rear is fitted on: Audi RS Q8 Quattro 2019-; Audi Q8 Quattro 3,0 2018-; Audi Q7 qu. 3.0 TDI 2015-2019.
