2003 Mercedes-Benz C320
20MPG
Combined
2
Trims
Updated February 27, 2026
The 2003 Mercedes-Benz C320 is a Compact Sedan that delivers 18–20 combined MPG depending on trim. Here’s everything you need to know about this vehicle, from fuel economy to safety ratings.
2003 Mercedes-Benz C320 Specifications
| Spec | Value |
|---|---|
| Combined MPG | 18–20 combined MPG depending on trim |
| City MPG | 18 |
| Highway MPG | 24 |
| Body Style | Compact Sedan |
| Fuel Type | Premium |
| Drive | RWD |
| Available Trims | 2 |
Available Trims
| Trim | MPG (City/Hwy/Combined) | Engine | Transmission |
|---|---|---|---|
| Auto | 18/24/20 | 3.2L 6cyl | Automatic 5-spd |
| Man | 15/23/18 | 3.2L 6cyl | Manual 6-spd |
Annual Fuel Cost
Based on EPA estimates, the 2003 Mercedes-Benz C320 costs approximately $3,075 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.
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Other Model Years
- 2005 Mercedes-Benz C320
- 2004 Mercedes-Benz C320
- 2003 (this page)
- 2002 Mercedes-Benz C320
- 2001 Mercedes-Benz C320
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