Audi A4/A5/S5 Coolant Reservoir / Tank / Bottle 8K0121405E

OEM Part #: 8K0-121-405-E (8K0121405E)

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Other Coolant Reservoir / Tank that may fit your vehicle

Coolant Reservoir / Tank / Bottle 8K0121403G

Coolant Reservoir / Tank / Bottle

$29.99
Fits 2009–2018 Audi & Porsche
OEM: 8K0121403G
Used Only 1 left
Coolant Reservoir / Tank / Bottle Cap 3B0121321

Coolant Reservoir / Tank / Bottle Cap

$7.99
Fits 1998–2024 Audi, Porsche + more
OEM: 3B0121321
Used Only 1 left
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This OEM coolant reservoir (part number 8K0121405E) is designed to precisely fit several Audi models, including the S5 (2008-2012), Q5 (2014-2015), and A5 (2008-2009). Crafted as a direct replacement, it serves a crucial role in maintaining the engine's cooling efficiency by storing and recycling coolant. Any issues related to overheating or low coolant levels can be effectively resolved with this authentic part. Commonly referred to as a coolant tank, it replaces worn-out or damaged units. Additional compatible part numbers include 8K0129697 and 8K0121251J. Ensure the longevity and performance of your Audi by selecting this genuine factory-original part from salvage operations.

Specifications

Specifications for Coolant Reservoir / Tank / Bottle 8K0121405E
Fits Vehicle ModelA4, A5, S5
Fits Vehicle MakeAudi
OEM Part No8K0-121-405-E (8K0121405E)
CategoryRadiator / Coolant

Compatible Vehicles

Fits 8 vehicle configurations across 1 make, 2008-2012.

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

  • A4 2009 1 with note
  • A5 2008-2009 · 2 variants 2 with notes
  • S5 2008-2012 · 5 variants
View all 8 vehicle configurations — 3 with fitment notes
Full vehicle fitment list for Coolant Reservoir / Tank / Bottle 8K0121405E
Year Make Model Trim Engine Note
2008 Audi A5 Quattro Coupe 3.2L V6 For Vehicles With Production date Up To 03/11/08
2008 Audi S5 Coupe 4.2L V8
2009 Audi A4 Quattro Sedan 3.2L V6 For Vehicles With Production date Up To 03/29/08
2009 Audi A5 Quattro Coupe 3.2L V6 For Vehicles With Production date Up To 03/11/08
2009 Audi S5 Coupe 4.2L V8
2010 Audi S5 Coupe 4.2L V8
2011 Audi S5 Coupe 4.2L V8
2012 Audi S5 Coupe 4.2L V8

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