2018 Mercedes-Benz C300 Oil Type & Capacity
The 2018 Mercedes-Benz C300 oil type depends on the engine: the 4Matic, 2D Convertible takes 0W-40 (6.9 quarts with filter); the 4Matic, 2D Coupe takes 0W-40 (6.9 quarts with filter); the 4Matic, 4D Sedan takes 0W-40 (6.9 quarts with filter); the Base, 2D Convertible takes 0W-40 (7.4 quarts with filter); the Base, 2D Coupe takes 0W-40 (7.4 quarts with filter); the Base, 4D Sedan takes 0W-40 (7.4 quarts with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- 4Matic, 2D Convertible: 0W-40, 6.9 quarts with filter
- 4Matic, 2D Coupe: 0W-40, 6.9 quarts with filter
- 4Matic, 4D Sedan: 0W-40, 6.9 quarts with filter
- Base, 2D Convertible: 0W-40, 7.4 quarts with filter
- Base, 2D Coupe: 0W-40, 7.4 quarts with filter
- Base, 4D Sedan: 0W-40, 7.4 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| 4Matic, 2D Convertible — 4Matic | MB Approved Synthetic Engine Oil - SAE 0W-40 or 5W-40 | 6.90 QTS. | — | Use Mercedes-Benz approved engine oil only. See bulletin No. S-0473-08B (Mercedes-Benz Factory Approved Service Products). |
| 4Matic, 2D Coupe — 4Matic | MB Approved Synthetic Engine Oil - SAE 0W-40 or 5W-40 | 6.90 QTS. | — | Use Mercedes-Benz approved engine oil only. See bulletin No. S-0473-08B (Mercedes-Benz Factory Approved Service Products). |
| 4Matic, 4D Sedan — 4Matic | MB Approved Synthetic Engine Oil - SAE 0W-40 or 5W-40 | 6.90 QTS. | — | Use Mercedes-Benz approved engine oil only. See bulletin No. S-0473-08B (Mercedes-Benz Factory Approved Service Products). |
| Base, 2D Convertible — Base | MB Approved Synthetic Engine Oil - SAE 0W-40 or 5W-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 — Base | MB Approved Synthetic Engine Oil - SAE 0W-40 or 5W-40 | 7.40 QTS. | — | Use Mercedes-Benz approved engine oil only. See bulletin No. S-0473-08B (Mercedes-Benz Factory Approved Service Products). |
| Base, 4D Sedan — Base | MB Approved Synthetic Engine Oil - SAE 0W-40 or 5W-40 | 7.40 QTS. | — | Use Mercedes-Benz approved engine oil only. See bulletin No. S-0473-08B (Mercedes-Benz Factory Approved Service Products). |
Buy the right oil
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More specs & repair guides for your C300
2018 Mercedes-Benz C300 factory service manualAll fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner site AllOEMManuals.com.
Coolant capacity
12.6 quarts (11.92 L) — MB BeVo 310.1 Anticorrosion/Antifreeze
Frequently asked questions
What type of oil does a 2018 Mercedes-Benz C300 take?
It depends on the engine: 4Matic, 2D Convertible uses 0W-40; 4Matic, 2D Coupe uses 0W-40; 4Matic, 4D Sedan uses 0W-40; Base, 2D Convertible uses 0W-40; Base, 2D Coupe uses 0W-40; Base, 4D Sedan uses 0W-40.
How much oil does a 2018 Mercedes-Benz C300 take?
Capacity depends on the engine: 4Matic, 2D Convertible holds 6.9 quarts with filter; 4Matic, 2D Coupe holds 6.9 quarts with filter; 4Matic, 4D Sedan holds 6.9 quarts with filter; Base, 2D Convertible holds 7.4 quarts with filter; Base, 2D Coupe holds 7.4 quarts with filter; Base, 4D Sedan holds 7.4 quarts with filter.
Can I use synthetic oil in my 2018 Mercedes-Benz C300?
Yes. 0W-40 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2018 Mercedes-Benz C300. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.