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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4.5 ★★★★★
Based on 15 reviews
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Product Reviews
K
Verified Purchase
Kelly Neel
Belleville, US
★★★★★ 5
Great toy!
Color: Grass Green, Size: Medium
We have a boxer and pit mix and he destroys everything. This toy however lasted the longest. He played with this every day and he plays very rough. But after 3 months I finally threw it out. It was still in tact but it was about to start falling apart. I will definitely buy another one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
D
Verified Purchase
Denise D.
Belleville, US
★★★★★ 5
Great for aggressive chewers!
Color: Mixed, Size: Medium
My dachshund pit mix is VERY hard on toys. She is a very aggressive chewer. She loves this toy and so far hasn't destroyed it! I was concerned because the center is softer, but because of the shape she is unable to get a good grip on it to chew it to pieces. Very happy with it so far!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
T
Verified Purchase
Tresa Gregory
Grantham, US
★★★★★ 5
Great toy
Color: Grass Green, Size: Medium
My dog could choose all kinds of things apart absolutely loves this and it's very sturdy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
C
Verified Purchase
Christina
Port Orchard, US
★★★★★ 4
Smaller than pictured
Color: Mixed, Size: Medium, Color: Mixed, Size: Medium
It’s a lot smaller than pictured and I have the same dog type as was depicted in the one of the pictures. The dog like it so I guess that’s good. I will not be playing tug of war with him using this. I like my fingers thank you very much. I would say it durable. He destroys most toys in minutes. He did destroy the squeaky part in about 10 minutes so bonus points for that.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 11, 2025
R
Verified Purchase
Richard Morrison
Birmingham, US
★★★★★ 5
Great for dogs like to to chew and like squeakers!
Color: Mixed, Size: Medium, Color: Mixed, Size: Medium
Harder to hold up to his bites. He started to pounce on it to make it squeak like he was honking the horn. He likes it and carries it around the house. Its a must buy for medium to large dogs
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025

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