VW AUDI SKODA SEAT COOLANT EXPANSION TANK 6Q0121407 1999-2015
VW Audi Skoda Seat Coolant Expansion Tank (6Q0121407)
Genuine OEM coolant expansion header bottle compatible across various VAG group vehicles covering model years 1999 through 2015.
OEM Reliability
Genuine Volkswagen Group factory part ensuring precise hose fitment and tank pressure stability.
Inspected & Tested
Carefully checked for cracks, leaks, or internal blockage to ensure clean fluid circulation.
Direct Replacement
Designed to mount directly into factory engine bay brackets without modifications.
Secure Shipping
Packed securely with protective padding to prevent transit damage or breakage.
Technical Specifications & Details
Part Category: Engine Cooling Systems / Expansion Tanks
OEM Part Code: 6Q0 121 407 / 6Q0121407 [1999–2015]
Buyer Assurance: Please verify your existing part number or vehicle compatibility prior to purchase.
Broader Fitment & Compatibility Matrix
Review the precise vehicle application compatibility breakdown below:
✓ Supported Vehicle Models & Years
| Make / Group & Models | Years Range | Application Details |
|---|---|---|
| VW Polo, Audi A2, Skoda Fabia, Seat Ibiza | 1999–2015 | Direct OEM coolant expansion header tank matching standard VAG small platform cooling layouts across model years 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015. |
✗ Incompatible Configurations
| Make & Platform | Compatibility | Reason for Incompatibility |
|---|---|---|
| Unmatched Part Numbers | Incompatible | Does not replace non-matching part numbers with different hose port configurations or mounting brackets. |
Installation Guidance
Allow the engine to cool completely before replacing the coolant expansion tank. Refill and bleed the cooling system according to manufacturer specifications upon installation.
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