De Renault 18 Combi was een 5-deurs stationwagon en was op de Nederlandse markt vanaf 1978. De productie is in 1985 afgebroken.
| Type | Motor | Transmissie | Inhoud |
| 18 Combi | benzine | handm. 4 | 1.4 liter |
| TL | benzine | handm. 4 | 1.4 liter |
| GTL | benzine | handm. 5 | 1.6 liter |
| Automatic | benzine | handm. 4 | 1.6 liter |
| TS | benzine | handm. 4 | 1.6 liter |
| GTS | benzine | handm. 5 | 1.6 liter |
| TX | benzine | handm. 5 | 2.0 liter |
| Automatic | benzine | handm. 4 | 2.0 liter |
| GTX | benzine | handm. 5 | 2.0 liter |
| TD | diesel | handm. 4 | 2.1 liter |
| GTD | diesel | handm. 5 | 2.1 liter |