Performance Water Pump Kit for Mercedes Benz C-Class (2012-2015) 3.5L

Complete Cooling Refresh Water Pump Kit for 2012-2015 Mercedes Benz C-Class (W204)

What it Does: The Performance Water Pump Kit replaces the failure-prone factory water pump, thermostat housing, and front accessory drive components on the 2012-2015 C-Class to eliminate coolant leaks and maintain stable operating temperatures.

The Stock Mercedes Benz C-Class Cooling Weakness

Continuous thermal cycling within the M276 engine compartment rapidly degrades factory composite thermostat housings and mechanical pump seals. The factory water pump shaft bearings develop internal play under continuous accessory belt load, resulting in weep-hole fluid weeping, impeller drag, and belt mis-tracking. Over time, plastic thermostat housings develop micro-fractures, while worn tensioner dampeners cause serpentine belt chatter and uneven belt wear across the front timing cover.

The Engineering Solution

This comprehensive cooling package restores thermal stability with a heavy-duty mechanical water pump engineered with upgraded internal ceramic-graphite seals and a balanced impeller to prevent cavitation under load. Supplied with an OE-spec thermostat housing assembly, new serpentine drive belts, an accessory belt tensioner, and an idler pulley, this kit refreshes the complete mechanical drive system. Engineered to directly replace OEM part number 2762001301, it restores factory coolant flow dynamics and precise belt tension without any system modifications.

What's Included

• 1 Mechanical Water Pump Assembly
• 1 Water Pump Gasket
• 1 Engine Coolant Thermostat Housing Assembly with Thermostat
• 1 Serpentine Belt Tensioner Assembly
• 1 Idler Pulley with Mounting Hardware
• 2 Serpentine Drive Belts
• 1 O-Ring

Technical Specifications

Compatibility

• 2012-2013, 2015 Mercedes Benz C-Class (C350) 3.5L V6 Gas Naturally Aspirated
• 2012-2013 Mercedes Benz C-Class (C350) 3.5L V6 Flex Fuel Naturally Aspirated

Frequently Asked Questions & Fitment Warnings

Does this fit the W204 C-Class?

Yes, this is a direct fit for the 2012-2015 Mercedes Benz C-Class equipped with the naturally aspirated M276 3.5L V6 engine.

Do I need to vacuum bleed the cooling system after replacement?

Yes, a full vacuum fill and air purge procedure is required on M276 cooling circuits to eliminate trapped air pockets within the cylinder heads and heater core.

The Mercedes Benz Precision Standard

European thermal management relies on exact pressure tolerances and precision fitment to prevent diagnostic fault codes and maintain engine block temperature stability.