How much refrigerant does a Mercedes-Benz C Class A/C system hold?

The 2017 Mercedes-Benz C Class (4 Cyl. 2.0 Eng. C300) holds 20.8 oz of R-134a as a complete system charge. That is the amount for an empty, evacuated system, not for a top-off.

Can I put R-134a in a car that uses R-1234yf?

No. The two use different service fittings on purpose and different oils. Charging the wrong refrigerant can damage the compressor and is illegal in the US under EPA rules.

Can I recharge the A/C myself?

A DIY can with a gauge can top off a slightly low R-134a system. If the system is empty it has a leak, and adding refrigerant without fixing it wastes the can. A full charge needs the system evacuated and weighed in, which is a shop job.

Mercedes-Benz C Class A/C refrigerant type and capacity

GarageDex's A/C data shows the 2017 Mercedes-Benz C Class (4 Cyl. 2.0 Eng. C300) uses 20.8 oz of R-134a refrigerant with PAG-46 compressor oil.

Shop R-134a Match the type on your under-hood decal

Key takeaways

2017 Mercedes-Benz C Class: 20.8 oz of R-134a, PAG-46 oil, see the under-hood decal for the rest.
The charge is a full-system amount; a top-off adds far less.
Do not mix refrigerant types or oils.
A system that is empty has a leak - fix it before charging.

Mercedes-Benz C Class A/C refrigerant and oil by year
Years	Engine	Refrigerant	Charge	Compressor oil
2017	4 Cyl. 2.0 Eng. C300	R-134a	20.8 oz	PAG-46
2017	4 Cyl. 2.0 Eng. C350e; Gas/Electric	R-134a	24 oz	PAG-46 4.2 oz
2017	6 Cyl. 3.0 Eng. C43 AMG	R-134a	20.8 oz	PAG-46
2017	8 Cyl. 4.0 Eng. C63 AMG	R-134a	20.8 oz	PAG-46
2017	8 Cyl. 4.0 Eng. C63 S AMG	R-134a	20.8 oz	PAG-46
2016	4 Cyl. 2.0 Eng. C300	R-134a	20.8 oz	PAG-46 2.8 oz
2016	4 Cyl. 2.0 Eng. C350e; Gas/Electric	R-134a	24 oz	-
2016	6 Cyl. 3.0 Eng. C450 AMG	R-134a	21.6 oz	PAG-46
2016	8 Cyl. 4.0 Eng. C63 AMG	R-134a	21.6 oz	PAG-46 4 oz
2016	8 Cyl. 4.0 Eng. C63 S AMG	R-134a	21.6 oz	PAG-46 4 oz
2014	4 Cyl. 1.8 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2014	6 Cyl. 3.5 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2014	8 Cyl. 6.3 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2013	4 Cyl. 1.8 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2013	6 Cyl. 3.5 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2013	8 Cyl. 6.2 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2013	8 Cyl. 6.3 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2012	4 Cyl. 1.8 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2012	6 Cyl. 2.5 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2012	6 Cyl. 3.0 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2012	6 Cyl. 3.5 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2012	8 Cyl. 6.2 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2012	8 Cyl. 6.3 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2011	6 Cyl. 2.5 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2011	6 Cyl. 3.0 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2011	6 Cyl. 3.5 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2011	8 Cyl. 6.2 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2011	8 Cyl. 6.3 Eng.	R-134a	34 oz	PAG-46 4.06 oz
2010	6 Cyl. 2.5 Eng.	R-134a	34 oz	PAG-46 4.06 oz
2010	6 Cyl. 3.0 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2010	6 Cyl. 3.5 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2010	8 Cyl. 6.2 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2010	8 Cyl. 6.3 Eng.	R-134a	38 oz	PAG-46 3.72 oz
2009	6 Cyl. 3.0 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2009	6 Cyl. 3.5 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2009	8 Cyl. 6.3 Eng.	R-134a	33 oz	PAG-46 4.06 oz
2008	6 Cyl. 3.0 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2008	6 Cyl. 3.5 Eng.	R-134a	21 oz	PAG-46 4.06 oz
2008	8 Cyl. 6.3 Eng.	R-134a	27 oz	PAG-46
2007	6 Cyl. 2.5 Eng.	R-134a	30 oz	PAG-46 5.2 oz
2007	6 Cyl. 3.0 Eng.	R-134a	30 oz	PAG-46 5.2 oz
2007	6 Cyl. 3.5 Eng.	R-134a	30 oz	PAG-46 5.2 oz
2006	6 Cyl. 2.5 Eng.	R-134a	30 oz	PAG-46 5.2 oz
2006	6 Cyl. 3.0 Eng.	R-134a	30 oz	PAG-46 5.2 oz
2006	6 Cyl. 3.5 Eng.	R-134a	30 oz	PAG-46 5.2 oz
2006	8 Cyl. 5.5 Eng.	R-134a	33 oz	PAG-46
2005	4 Cyl. 1.8 Eng.	R-134a	30 oz	PAG-46 5.2 oz
2005	6 Cyl. 2.6 Eng.	R-134a	30 oz	PAG-46 5.2 oz
2005	6 Cyl. 3.2 Eng.	R-134a	30 oz	PAG-46 5.2 oz
2005	8 Cyl. 5.5 Eng.	R-134a	30 oz	PAG-46 5.2 oz
2004	4 Cyl. 1.8 Eng.	R-134a	30 oz	PAG-46 5.2 oz
2004	6 Cyl. 2.6 Eng.	R-134a	30 oz	PAG-46 5.2 oz
2004	6 Cyl. 3.2 Eng.	R-134a	30 oz	PAG-46 5.2 oz
2001 to 2003	All Eng.	R-134a	26.5 oz	PAG-46 4 oz
1994 to 2000	All Eng.	R-134a	29 oz	PAG-46 8 oz

Recharge supplies for your Mercedes-Benz C Class

Buy the refrigerant type shown for your year and confirm it against the under-hood decal. R-1234yf cans cost more and need a matching coupler.

R-134aR-134a recharge can with a gaugeShop cans Manifold gauge setReads high and low side pressure properlyShop gauges Leak detection kitFind the leak before you spend on refrigerantShop kits

As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.

Same car, other specs: Mercedes-Benz C Class specs hub.

Other Mercedes-Benz models

300 Series B Class B200 Cl Class Cla Class Clk Class Cls Class E Class G Class Gl Class Glc Class Gle Class Glk Class Ml Class R Class S Class Sl Class Slk Class Sls Class Sprinter

Source: Four Seasons - Compressor / System Refrigerant & Lubricant Specs. The under-hood A/C decal is the primary source for your exact car - it overrides any table. Charges assume a clean system with a new drier.