Radiator Coolant Reservoir – Audi, Seat, Skoda, Volkswagen (6Q0121407)
This high-quality radiator expansion tank (Teilex SD203543) is a direct replacement for OE part number 6Q0121407 and associated variants. Designed to regulate coolant levels and maintain system pressure, it helps ensure consistent engine cooling across a wide range of Audi, Seat, Skoda, and Volkswagen models.
Key Features:
Direct replacement for OE numbers:
6Q0121407, 6Q0121407A, 6Q0121407B, 6Q0121407D, 6RU121407
Built to OEM specifications for fit and performance
Heat- and pressure-resistant plastic construction
Prevents overheating and coolant loss
Part No: SD203543 | Brand: Teilex
Compatible With:
Audi
A1 Hatchback (8X1, 8XK) – 2010–2018
A1 Sportback (8XA, 8XK) – 2011–2018
Seat
Ibiza III Hatchback (6L) – 2002–2009
Córdoba II Saloon (6L2) – 2002–2009
Ibiza IV Hatchback (6J5, 6P1) – 2008–2017
Ibiza IV Sportcoupe (6J, 6P) – 2008–2018
Ibiza IV ST (6J8, 6P8) – 2010–2016
Toledo IV Hatchback (KG3) – 2012–2019
Skoda
Fabia I (6Y2, 6Y3, 6Y5, Praktik) – 1999–2007
Fabia II Hatchback (542) – 2006–2014
Fabia II Combi (545) – 2007–2014
Fabia III Hatchback (NJ3) – 2014–2021
Fabia III Estate (NJ5) – 2014–2022
Roomster Praktik (5J) – 2007–2015
Rapid Hatchback (NH3) – 2012–2022
Rapid Spaceback (NH1) – 2012–2019
Volkswagen
Polo IV Hatchback (9N) – 2001–2012
Polo IV Saloon (9A4, 9A2, 9N2, 9A6) – 2002–present
• 1.4L (1390cc, 75hp) – 2002–2012
• 1.4L (1390cc, 101hp) – 2003–2005
Polo V Hatchback (6R1, 6C1) – 2009–2022
Polo V Saloon (602, 604, 612, 614) – 2009–present
• 1.6L (1598cc, 86hp) – 2010–2015
• 1.6L (1598cc, 105hp) – 2010–2022
• 1.6L (1598cc, 110hp) – 2015–2020
• 1.6 TDI (1598cc, 105hp) – 2010–2015
Polo VI (AW1, BZ1) – 2017–present
• 1.0 TSI (999cc, 95hp) – 2017–present
Fox Hatchback (5Z1, 5Z3, 5Z4) – 2003–2015
Note: This is an aftermarket replacement part manufactured by Teilex, not a genuine Audi, Seat, Skoda, or Volkswagen component.
