(20) 110055 Coolant Expansion Tank VAG 04>
| Material | Plastic |
| Heating / Cooling | with coolant level switch connection |
| Supplementary Article/Info 2 | without Cap |
| VAG | 1K0121407A |
| Audi A3 | 1.4-3.2 (incl. D) | 05/03- |
| Audi TT | 2.0-3.2 | 08/06- |
| Caddy | 1.4-2.0 (incl. D) | 02/04- |
| Eos | 1.4-3.2 (incl. D) | 05/06- |
| Golf | 1.4-2.0 (incl. D) | 10/03-11/08 |
| Golf | 1.4-2.0 (incl. D) | 10/08- |
| Golf Plus | 1.4-2.0 (incl. D) | 01/05- |
| Jetta | 1.4-2.5 (incl. D) | 08/05- |
| Passat | 1.4-3.6 (incl. D) | 03/05- |
| Passat CC | 1.8-3.6 (incl. D) | 04/08- |
| Scirocco | 1.4-2.0 (incl. D) | 08/08- |
| Seat Altea | 1.4-2.0 (incl. D) | 03/04- |
| Seat Toledo/Leon | 1.4-2.0 (incl. D) | 09/04- |
| Skoda Octavia | 1.4-2.0 (incl. D) | 02/04- |
| Tiguan | 1.4-2.0 (incl. D) | 11/07- |
| Touran | 1.4-2.0 (incl. D) | 02/03- |