between 6-7quarts
Oil Changes range between $100 to $130
An oil change, for a Mercedes, can run between $200 and $300. It depends on where you go, what type or oil you use, and what city you live in.
A mercedes C300 costs twenty-thousand dollars. This vehicle is at the top of the mercedes line and is reserved for really rich people. Make sure not to get a counter fit mercedes from China or India.
350-400 Euro
The 2011 Mercedes-Benz C300 typically requires about 8.5 quarts (or approximately 8 liters) of engine oil when equipped with the 3.0L V6 engine, including the oil filter change. It's important to use the recommended oil type, which is usually synthetic 5W-30 or 0W-40. Always check the owner's manual for the most accurate specifications and recommendations for your specific vehicle.
Prices are all over the place at dealers. Driven MB's for years but do many services myself as the dealer will rob or rape you on charges. Ridiculous.
You can only drain it and not fill it unless you have a pump and know exactly how much you took out so you can replace it with the exact amount. It is not recommended to replace it yourself. There are many places that would change it for $100 or so.
Probably the one hour shop rate at your local Mercedes-Benz dealer - call them. Now if you really want to get angry, see sources and related links below for the cost of the bulb. It may be worth checking your manual and replacing it yourself.
The 2009 Mercedes-Benz SL-Class's engine produces 391 ft-lbs. @ 2800 rpm.
The 2009 Mercedes-Benz CL-Class's engine produces 391 ft-lbs. @ 2800 rpm.
The 2009 Mercedes-Benz M-Class's engine produces 258 ft-lbs. @ 2400 rpm.
The 2009 Mercedes-Benz S-Class's engine produces 391 ft-lbs. @ 2800 rpm.