SKU: 20823783065

Expansion Tank for Audi A1 Sportback, VW Polo & T-Cross - ET34

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Description

Expansion Tank for Audi A1 Sportback, VW Polo & T-Cross - ET34Vehicle Fitment & Part Details This expansion tank for the Audi A1 Sportback cross references OE 2Q0121407, shared across Audi, Seat, and VW. Material is plastic. Confirm compatibility by matching the listed fitment details, any OEM reference numbers supplied, and VIN engine chassis information where variants exist. Key Details SKU ET34 Component Expansion Tank Brand Partquip OEM References Audi Seat VW: 2Q0121407 Audi Seat VW: 2Q0121407A Audi Seat

Vehicle Fitment & Part Details

This expansion tank for the Audi A1 Sportback cross-references OE 2Q0121407, shared across Audi, Seat, and VW. Material is plastic. Confirm compatibility by matching the listed fitment details, any OEM reference numbers supplied, and VIN/engine/chassis information where variants exist.

Key Details

SKU
ET34
Component
Expansion Tank
Brand
Partquip
OEM References
  • Audi / Seat / VW: 2Q0121407
  • Audi / Seat / VW: 2Q0121407A
  • Audi / Seat / VW: 2Q0121407B
  • Audi / Seat / VW: 2Q0121407C
  • Audi / Seat / VW: 2Q0121407D
Primary Fitment
Audi A1 Sportback 30 TFSi DKJA / DKRF (2019-)
Specs
Material: Plastic

Key Benefits

  • Cross-references 5 OEM numbers shared across Audi, Seat, and VW including 2Q0121407 for verification before ordering.
  • Plastic construction matching the original expansion tank material.

OEM Reference Numbers

  • Audi / Seat / VW: 2Q0121407
  • Audi / Seat / VW: 2Q0121407A
  • Audi / Seat / VW: 2Q0121407B
  • Audi / Seat / VW: 2Q0121407C
  • Audi / Seat / VW: 2Q0121407D

Product Specifications

Specification Value
Material Plastic

Vehicle Fitment

Includes 10 supplied applications.

View Full Vehicle Fitment (10 applications)
Make Model Engine Years
Audi A1 Sportback 30 TFSi DKJA / DKRF 2019-
Audi A1 Sportback 35 TFSi DADA / DPCA 2019-
Audi A1 Sportback 40 TFSi CZPC / DKZC 2019-
VW Polo 1.0 TSi Comfort CHZL 2018-
VW Polo 1.0 TSi Comfort CHZJ / DKJA 2018-
VW Polo 2.0 GTi CZPC / DKZC 2018-
VW T-Cross 1.0 TSi DKJA / DKRF 2018-
VW T-Cross 1.0 TSi CHZL / DKLA 2020-
VW T-Cross 1.5 TSi DADA / DPCA 2020-
VW Tiguan 2.0 2019-2021

Fitment Notes

  • Always match OEM reference number(s) and vehicle details before ordering. Confirm exact fitment using VIN, engine code, or chassis number if multiple variants exist.

Installation / Use / Maintenance Tips

  • Compare the new expansion tank to the removed unit before installation to confirm the mounting points, cap type, and hose connections match.
  • Flush or clean the cooling system where required before fitting the new part.
  • Replace related seals, hoses, or coolant as needed during installation.
  • Fill with the correct coolant mixture specified for the application and bleed the cooling system fully.
  • After installation, check for leaks and verify the coolant level after the first heat cycle.

Common Questions

Does this expansion tank fit my Audi A1 Sportback?
This part (ET34) is listed for the fitments shown on this page. Confirm by matching the fitment details and verifying VIN/engine/chassis information where variants exist.

What OEM part numbers does this cross-reference?
Listed cross-references: 2Q0121407, 2Q0121407A, 2Q0121407B, 2Q0121407C, 2Q0121407D. Match at least one OEM reference to your original part before ordering.

What brand is this part?
This listing is for a Partquip expansion tank.

How do I confirm fitment if there are multiple variants?
Use VIN, engine code, and chassis/platform details and compare them to the fitment section above. If unsure, request fitment assistance before ordering.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 20823783065

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4.7 ★★★★★
Based on 10 reviews
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Patricia G.
Carnegie, US
★★★★★ 5
Attractive, easy to install, nicely equipped hardware package.
Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 2, Size: 22.5inches
These are pretty doggone nice shelves and I appreciate the fact that they are not made of solid particle board. Yes they are made of an engineered product, but they are lightweight and strong…and look better than particle board products and more costly than their actual price. Easy installation system with the bracket…not fussy like some are. An especially thoughtful touch is the variety of hardware that is included. Also a tiny level for use when installing them. What? …So they can be installed correctly? I was pleasantly surprised by this inclusion.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
S
Verified Purchase
Sara
Lowell, US
★★★★★ 5
Beautiful shelves
Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 2, Size: 22.5inches
Great quality shelves, have them in 4 rooms, they are easy to hang up and lightweight, look really nice and keeps room looking organized and clean.
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Reviewed in the United States on May 24, 2026
K
Verified Purchase
Kristal S.
Fort Morgan, US
★★★★★ 5
Perfect for a coffee bar
Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 3, Size: 15.7inches, Color: B. Rustic Brown - Americana Farmhouse Style, Number Of Shelves: 3, Size: 15.7inches
These are great for my coffee bar! These shelves are easy to install and came with all the hardware needed. What a great value for your money, especially when you get 3 of these cute shelves. I love how they help organize my coffee bar area and the size fits perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
S
Verified Purchase
Saved
Carnegie, US
★★★★★ 4
If the set screws were white the shelves would be perfect.
Color: C. White - Modern Minimalist Style, Number Of Shelves: 3, Size: 15.7inches
I'd give 4 1/2 if there was one. The shelves thwmself are nice I just don't like the visible little black set screws. The shelves themself look great and are not wobbly at all if you install correctly. I purposely installed the bracket upside down because of the little black setting screws; I didnt want them showing because the shelves are above eye level and the screws are black and I didn't want them showing. But that made the shelf lean amd wobbly so I turned them back over the way they are supposed to be and that made them level and sturdy. I guess I'll paint the little screws.
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Reviewed in the United States on January 21, 2026
C
Verified Purchase
creativecow
Birmingham, US
★★★★★ 5
Game-Changer for My Space!
Color: White, Size: 4 Panel Basic
I recently purchased the Kecreque 4-Panel Room Divider, and it has completely transformed my living area. At 88" wide, it provides ample coverage, creating a private nook in my open-concept home. The white polyester fabric is not only sleek and modern but also wrinkle-resistant and easy to clean—just a quick wipe with a damp cloth, and it looks brand new. Assembly was a breeze; I had it set up in about 20 minutes. The metal frame feels sturdy and durable, and the three extra-wide metal feet offer excellent stability, ensuring it doesn't tip over easily. I love how the panels are connected with flexible buckles, allowing me to adjust the configuration to suit my needs—be it a straight line or an angled setup. This divider has been perfect for creating a dressing area in my bedroom, and I've also used it to section off a workspace in my living room. Its versatility is unmatched, and it folds down compactly when not in use, making storage hassle-free. If you're looking for a stylish, functional, and easy-to-use room divider, I highly recommend this one. It's been a fantastic addition to my home!
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Reviewed in the United States on June 7, 2025

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