2017 Mercedes-Benz Sprinter A/C Refrigerant & Oil Capacity

Mercedes-Benz Sprinters are known for their reliability, but even these workhorses need their A/C systems maintained. If you're looking to service your 2017 Sprinter's air conditioning, understanding the correct refrigerant type, charge amount, and oil specifications is crucial.

Quick Answer

• Refrigerant Type: R-1234yf
• Full System Charge: 900 grams (31.75 oz) for single A/C, 1200 grams (42.33 oz) for dual A/C
• PAG Oil Type: PAG 46
• PAG Oil Amount: 130 mL (4.4 oz) for single A/C, 180 mL (6.1 oz) for dual A/C
• Low-Side Service Port Location: Typically on the accumulator/drier, near the firewall on the passenger side.
• High-Side Service Port Location: Usually on the refrigerant line near the condenser, often close to the front of the vehicle on the passenger side.

Why R-1234yf Matters

Starting in 2017, the Mercedes-Benz Sprinter, along with many other vehicles, transitioned to R-1234yf refrigerant. This change was driven by environmental regulations aimed at reducing the global warming potential (GWP) of refrigerants. R-1234yf has a significantly lower GWP than the older R-134a.

There are a few key implications of this transition:

• Cost: R-1234yf is generally more expensive than R-134a due to its newer technology and production processes.
• EPA Regulations: The EPA mandates the use of specific equipment for handling R-1234yf. It's crucial to use dedicated R-1234yf recovery, recycling, and recharging machines to prevent cross-contamination with R-134a.
• Recovery Machine Requirements: Shops servicing R-1234yf systems must have EPA 609 certified technicians and R-1234yf specific equipment. Never attempt to mix R-134a with R-1234yf, as this can damage the A/C system and recovery equipment.

Recharge Procedure

Recharging your Sprinter's A/C system isn't as simple as just adding a can of refrigerant. It's a precise process that requires specialized tools and knowledge. While we provide a high-level overview, we strongly recommend having this done by a certified professional.

1. Evacuation: The system must first be evacuated using a vacuum pump to remove all air and moisture. Moisture can react with refrigerant to form corrosive acids, leading to system damage.
2. Leak Test: After evacuation, the system should hold a vacuum for a specified period to ensure there are no leaks. Even a small leak can lead to refrigerant loss and A/C performance issues.
3. Proper Charge by Weight: The most critical step is adding the correct amount of refrigerant BY WEIGHT, not by pressure. Using A/C manifold gauges to determine charge by pressure alone is inaccurate and can lead to over or undercharging, both of which reduce efficiency and can damage the compressor.
4. Oil Consideration: If components have been replaced, ensure the correct type and amount of PAG 46 oil is added. The total system oil capacity must be maintained, but only replace the amount lost with replaced components.

Common A/C Problems for This Vehicle

While the 2017 Mercedes-Benz Sprinter is a robust vehicle, its A/C system can develop common issues:

• Compressor Failures: The compressor is the heart of the A/C system. Failures can be caused by improper refrigerant levels (too high or too low), contaminated oil, or internal wear and tear.
• Condenser Issues: The condenser, located at the front of the vehicle, can be susceptible to damage from road debris, leading to leaks. Blocked fins from dirt and leaves can also reduce its cooling efficiency.
• Evaporator Leaks: The evaporator, located inside the dashboard, can develop leaks, often indicated by a musty smell or refrigerant residue draining from the vehicle. These repairs are typically labor-intensive.
• Blend Door Actuator Failures: While not directly a refrigerant issue, failed blend door actuators can prevent proper temperature control, making it seem like the A/C isn't working correctly.

When to Call a Pro

Given the complexities of R-1234yf systems, the precision required for charging, and the potential for costly component damage, it's always best to call a professional for A/C diagnostics and repairs. They have the necessary training, EPA 609 certification, and specialized equipment to safely and effectively service your Sprinter's A/C system.

Safety Disclaimer: Working with automotive air conditioning systems can be dangerous. Refrigerants are under high pressure and can cause frostbite or other injuries. Improper handling can also lead to environmental damage. Always wear appropriate personal protective equipment, and ensure you are EPA 609 certified before attempting any A/C service. If you are not certified, please seek professional assistance.

Find a certified A/C shop on Repairius.