Mercedes Sprinter A/C Compressor with Clutch (Rear A/C) – Denso | NCV3 & VS30 | #0012307111 (2010–2021)

If your Sprinter is equipped with rear auxiliary air conditioning and the system has stopped cooling effectively — or you're hearing noise when the compressor engages — this is the correct replacement unit. A failing A/C compressor on a Sprinter with rear auxiliary A/C affects both front and rear climate zones simultaneously, leaving the entire system without refrigerant compression. This is the Denso OEM A/C compressor with clutch for Sprinters equipped with rear auxiliary A/C, a direct replacement that restores full dual-zone cooling performance.

What This Part Does

The A/C compressor is the engine-driven pump at the heart of the refrigerant circuit. On Sprinters equipped with rear auxiliary climate control, this compressor is a higher-capacity unit than the standard front-only compressor — it must generate sufficient refrigerant flow to serve both the front evaporator and the rear auxiliary evaporator simultaneously. Driven by the serpentine belt through an electromagnetic clutch, it compresses low-pressure refrigerant from both evaporators into high-pressure gas that flows to the condenser, where heat is rejected before the refrigerant cycles back through the expansion valves and into the cabin zones. When the compressor's internal components fail, its shaft seal leaks refrigerant, or the clutch fails to engage, both the front and rear A/C zones lose cooling simultaneously. Denso is a primary OEM A/C compressor supplier to Mercedes-Benz, and this unit is built to the same specifications as the original factory-installed compressor.

Common Symptoms of a Failing A/C Compressor

• Both front and rear A/C zones blowing warm air despite a fully charged system
• Grinding, squealing, or rattling from the compressor area when A/C is switched on
• Compressor clutch that clicks but the compressor does not spin — seized internally
• Refrigerant leak at the compressor shaft seal confirmed by dye or electronic leak test
• Compressor cycling on and off rapidly — pressure relief activating from worn internals
• A/C system fault codes in the HVAC control module

When to Replace

Replace when the compressor is confirmed failed after verifying refrigerant charge, clutch coil voltage, and the A/C pressure switch. Always replace the receiver/drier and expansion valve(s) when replacing the compressor, and flush the A/C system to remove any metal debris before recharging.

VIN Verification Required — Rear A/C Models Only

This compressor is for Sprinters equipped with rear auxiliary A/C only — it is not interchangeable with the standard front-only compressor (001230861180). A/C compressor configurations are VIN-specific and vary by trim, optional equipment, and model year. Always verify your VIN and A/C system configuration before ordering. Contact us and we'll confirm fitment before you buy.

Fitment

• 2010–2021 Mercedes-Benz Sprinter 2500 – 2.1L & 3.0L Diesel, with rear auxiliary A/C (NCV3 & VS30)
• 2010–2021 Mercedes-Benz Sprinter 3500 – 2.1L & 3.0L Diesel, with rear auxiliary A/C (NCV3 & VS30)

✔ Rear auxiliary A/C equipped models only — standard front-only A/C uses a different compressor (#001230861180)
✔ Always replace receiver/drier and expansion valves when replacing the compressor
✔ Always flush A/C system before recharging after compressor failure
✔ This part is VIN-specific — always verify before ordering

Part Numbers

• Mercedes OEM: 0012307111 / A0012307111 / 001-230-71-11
• Cross-reference: 68012250AA / K68012250AA / 0002344011
• Manufacturer: Denso
• SKU: 0012307111