Skip to main content
Genuine OEM & performance parts — ships to United States

Product overview

Genuine OEM Volkswagen Cooling System Breather Line, part number 04L121070AB. This critical component is designed to allow trapped air to escape from the vehicle's cooling system, preventing air pockets that can lead to overheating and inefficient coolant circulation. It is an integral part of the engine cooling system, connecting various components to maintain proper fluid levels and pressure. This assembly consists of rigid pipes and flexible hoses, engineered for specific routing and temperature resistance. Using a genuine OEM breather line ensures correct routing geometry, material integrity, and precise connections, which are essential for the long-term reliability and performance of the engine cooling system.

Technical details

Category
Engine Cooling
Country of origin
Germany
Customs (HS) code
87089997
Manufacturer
Volkswagen
Product Type
Genuine new auto parts
Shipping size (L × W × H)
37.5 × 12 × 9 cm
Shipping weight
0.18 kg

Parts diagram & fitment

56 vehicles

Breather Line — locate 04L121070AB Volkswagen Cooling System Breather Line | Genuine OEM in the official exploded view and explore the surrounding assembly.

Parts in this assembly(32)
  • 1Hose 5Q0122051DM
  • 1Hose 5Q0122051BK
  • 2Seal Ring N90765301
  • 3Spring 1J0121142
  • 7Bracket 5Q0121093CM
  • 8Bracket WHT005377
  • 9Coupl Piece 3B0122291B
  • 10Bracket 5Q0121093CN
  • 15Pump 5Q0121599AN
  • 15Pump 5Q0965561B
  • 15Water Pump 2Q0965567A
  • 16Bracket 5Q0121093CH
  • 16Bracket 5Q0121093CF
  • 17Screw N10698101
  • 18Fixing Set 5N0198093
  • 18Screw N10734301
  • 18Clip 8J7871719
  • 21Pipe 2Q0121064C
  • 22Hose 2Q0122449
  • 23Hose 5Q0122449C
  • 24Bolt N90737101
  • 25Hose 5QA122101
  • 25Hose 5QA122101A
  • 26Coupl Piece 3C0122291
  • 26Coupl Piece 5Q0121619A
  • 32Hose 04L121030
  • 33Bolt N10335202
  • 60Clamp N90768301
  • 61Clamp N90686701
  • 64Clamp N90686902
  • 65Clamp N90687001
  • 67Clamp N90687201
Compatible / alternative parts(12)
  • Part 5Q0121064BB
  • Part 04L121065
  • Part 5QF121064B
  • Part 04L121064AQ
  • Part 04L121064F
  • Part 04L121064T
  • Part 04L121065AJ
  • Part 04L121065BH
  • Part 04L121065CC
  • Part 04L121065CR
  • Part 5Q0121070AF
  • Part 5GB121407

Diagrams & fitment data powered by oemdiagrams.com

04L121070AB Volkswagen Cooling System Breather Line | Genuine OEM is fitted on: Golf 2.0 BlueMotion 2019-2024; Caddy Maxi Kombi 2020-2024; T-Cross 1,0 2018-2024; New Passat 2011-2015; new beetle 2011-2016; new beetle cabriolet 2011-2016; Golf Cabriolet 2011-2016; Tiguan 4Motion 2011-2018; Passat CC 2011-2016; Golf 1.4 BlueMotion 2012-2017; Golf Estate 2013-2017; Golf Sportsvan 1.6 2014-2020; Golf 1.4 BlueMotion 2014-2017; Scirocco 2.0 2014-2017; jetta 2014-2017; Passat saloon 2014-2024; Golf Estate 1.4 2014-2017; Beetle 2016-2019; new beetle cabriolet 2016-2019; Tiguan 2.0 4Motion 2016-2022; T-Roc BlueMotion 2017-2024; golf 2.0 2016-2020; Arteon 2017-2023; Tiguan 2.0 4Motion 2017-2024; Polo 1.0 BlueMotion 2017-2024; Sharan BlueMotion 2015-2022; caddy kombi 2015-2020; New Passat 2015-2022; Touran 2,0 BlueMotion 2015-2024; Tiguan 2.0 4Motion 2016-2024; Kodiaq 2024-; Kodiaq 2018-2022; Kamiq 2019-; Octavia 2019-2024; Octavia 2012-2017; Yeti 2013-2017; Kodiaq 2016-2024; Octavia 2017-2020; Karoq 2017-2022; Superb Combi 2015-2024; Audi Q3 quattro 2018-2019; Audi A3 Sportback 2012-2016; Audi A3 Cab. 1.4 2013-2016; Audi Q2 2.0 TDI 2016-2018; Audi TTS Coupe 2.0 2014-2023; Audi Q3 2.0 TDI 2014-2019; Audi A3 Sportback 2016-2020; Audi A3 Cabrio 2016-2020; Leon style 2019-; Arona FR 2017-; Tarraco FR 2018-2024; Leon ST Stylance 2012-2016; Leon ST Stylance 2016-2020; Ibiza FR 2017-; Alhambra Stylance 2015-2022; Ateca Style 2016-.