2003 Mercedes-Benz C320 Oil Type & Capacity
The 2003 Mercedes-Benz C320 oil type depends on the engine: the 4Matic, 4D Sedan takes 0W-30 (7.4 quarts with filter); the 4Matic, 4D Wagon takes 0W-30 (7.4 quarts with filter); the Base, 2D Coupe, Automatic takes 0W-30 (7.9 quarts with filter); the Base, 2D Coupe, Standard takes 0W-30 (7.9 quarts with filter); the Base, 4D Sedan, Automatic takes 0W-30 (7.9 quarts with filter); the Base, 4D Sedan, Standard takes 0W-30 (7.9 quarts with filter); the Base, 4D Wagon, Automatic takes 0W-30 (7.9 quarts with filter); the Base, 4D Wagon, Standard takes 0W-30 (7.9 quarts with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- 4Matic, 4D Sedan: 0W-30, 7.4 quarts with filter
- 4Matic, 4D Wagon: 0W-30, 7.4 quarts with filter
- Base, 2D Coupe, Automatic: 0W-30, 7.9 quarts with filter
- Base, 2D Coupe, Standard: 0W-30, 7.9 quarts with filter
- Base, 4D Sedan, Automatic: 0W-30, 7.9 quarts with filter
- Base, 4D Sedan, Standard: 0W-30, 7.9 quarts with filter
- Base, 4D Wagon, Automatic: 0W-30, 7.9 quarts with filter
- Base, 4D Wagon, Standard: 0W-30, 7.9 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| 4Matic, 4D Sedan — 4Matic | MB Approved Synthetic Engine Oil - SAE 0W-30, 5W-40 or 0W-40 | 7.40 QTS. | — | Use Mercedes-Benz approved engine oil only. See bulletin No. S-0473-08B (Mercedes-Benz Factory Approved Service Products). |
| 4Matic, 4D Wagon — 4Matic | MB Approved Synthetic Engine Oil - SAE 0W-30, 5W-40 or 0W-40 | 7.40 QTS. | — | Use Mercedes-Benz approved engine oil only. See bulletin No. S-0473-08B (Mercedes-Benz Factory Approved Service Products). |
| Base, 2D Coupe, Automatic — Base | MB Approved Synthetic Engine Oil - SAE 0W-30, 5W-40 or 0W-40 | 7.90 QTS. | — | Use Mercedes-Benz approved engine oil only. See bulletin No. S-0473-08B (Mercedes-Benz Factory Approved Service Products). TSB No. P-B18.40/18a: The specified oil fill capacity, with oil filter change, of all U.S. version with series 203 is reduced from 8.5 qts. (8.0l) to 7.90 qts. (7.5l). |
| Base, 2D Coupe, Standard — Base | MB Approved Synthetic Engine Oil - SAE 0W-30, 5W-40 or 0W-40 | 7.90 QTS. | — | Use Mercedes-Benz approved engine oil only. See bulletin No. S-0473-08B (Mercedes-Benz Factory Approved Service Products). TSB No. P-B18.40/18a: The specified oil fill capacity, with oil filter change, of all U.S. version with series 203 is reduced from 8.5 qts. (8.0l) to 7.90 qts. (7.5l). |
| Base, 4D Sedan, Automatic — Base | MB Approved Synthetic Engine Oil - SAE 0W-30, 5W-40 or 0W-40 | 7.90 QTS. | — | Use Mercedes-Benz approved engine oil only. See bulletin No. S-0473-08B (Mercedes-Benz Factory Approved Service Products). TSB No. P-B18.40/18a: The specified oil fill capacity, with oil filter change, of all U.S. version with series 203 is reduced from 8.5 qts. (8.0l) to 7.90 qts. (7.5l). |
| Base, 4D Sedan, Standard — Base | MB Approved Synthetic Engine Oil - SAE 0W-30, 5W-40 or 0W-40 | 7.90 QTS. | — | Use Mercedes-Benz approved engine oil only. See bulletin No. S-0473-08B (Mercedes-Benz Factory Approved Service Products). TSB No. P-B18.40/18a: The specified oil fill capacity, with oil filter change, of all U.S. version with series 203 is reduced from 8.5 qts. (8.0l) to 7.90 qts. (7.5l). |
| Base, 4D Wagon, Automatic — Base | MB Approved Synthetic Engine Oil - SAE 0W-30, 5W-40 or 0W-40 | 7.90 QTS. | — | Use Mercedes-Benz approved engine oil only. See bulletin No. S-0473-08B (Mercedes-Benz Factory Approved Service Products). TSB No. P-B18.40/18a: The specified oil fill capacity, with oil filter change, of all U.S. version with series 203 is reduced from 8.5 qts. (8.0l) to 7.90 qts. (7.5l). |
| Base, 4D Wagon, Standard — Base | MB Approved Synthetic Engine Oil - SAE 0W-30, 5W-40 or 0W-40 | 7.90 QTS. | — | Use Mercedes-Benz approved engine oil only. See bulletin No. S-0473-08B (Mercedes-Benz Factory Approved Service Products). TSB No. P-B18.40/18a: The specified oil fill capacity, with oil filter change, of all U.S. version with series 203 is reduced from 8.5 qts. (8.0l) to 7.90 qts. (7.5l). |
Buy the right oil
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More specs & repair guides for your C320
2003 Mercedes-Benz C320 factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
6.8 quarts (6.43 L) — MB 325.0 Anticorrosion/Antifreeze
Frequently asked questions
What type of oil does a 2003 Mercedes-Benz C320 take?
It depends on the engine: 4Matic, 4D Sedan uses 0W-30; 4Matic, 4D Wagon uses 0W-30; Base, 2D Coupe, Automatic uses 0W-30; Base, 2D Coupe, Standard uses 0W-30; Base, 4D Sedan, Automatic uses 0W-30; Base, 4D Sedan, Standard uses 0W-30; Base, 4D Wagon, Automatic uses 0W-30; Base, 4D Wagon, Standard uses 0W-30.
How much oil does a 2003 Mercedes-Benz C320 take?
Capacity depends on the engine: 4Matic, 4D Sedan holds 7.4 quarts with filter; 4Matic, 4D Wagon holds 7.4 quarts with filter; Base, 2D Coupe, Automatic holds 7.9 quarts with filter; Base, 2D Coupe, Standard holds 7.9 quarts with filter; Base, 4D Sedan, Automatic holds 7.9 quarts with filter; Base, 4D Sedan, Standard holds 7.9 quarts with filter; Base, 4D Wagon, Automatic holds 7.9 quarts with filter; Base, 4D Wagon, Standard holds 7.9 quarts with filter.
Can I use synthetic oil in my 2003 Mercedes-Benz C320?
Yes. 0W-30 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2003 Mercedes-Benz C320. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.