Nissens 996279 Engine Coolant Reservoir

Nissens 996279 Engine Coolant Reservoir

The Nissens 996279 engine coolant reservoir is a pressurized plastic expansion tank built for Mercedes-Benz cooling systems that require integrated level monitoring. It includes a cap, level sensor, and sensor, with a 1.75L capacity for direct replacement service on select E-Class, C-Class, and GLK applications.

Key Features

• Engine coolant reservoir for pressurized cooling systems
• Plastic construction for OE-style fit and function
• 1.75L capacity
• Cap included with high quality plastic cap type
• Level sensor included
• Sensor included
• Mounting hardware not included
• Mounting bracket not included

Application Details

Compatible with select Mercedes-Benz models, including Fits 2010-2016 Mercedes-Benz E350, N/A; Fits 2008-2015 Mercedes-Benz C63 AMG, N/A; Fits 2013-2015 Mercedes-Benz GLK250, N/A; Fits 2010-2015 Mercedes-Benz GLK350, N/A; and Fits 2012-2014 Mercedes-Benz C250, N/A. This part number, 996279, also cross-references URO 2045000949 for the same application.

Nissens develops thermal management components with a focus on consistent manufacturing quality and aftermarket coverage. The 996279 reservoir follows that approach with the correct pressurized design and integrated sensor provisions for vehicles that monitor coolant level through the expansion tank.

What This Part Helps Address

• Cracked or leaking coolant reservoir housing
• Low coolant warnings from a failing level sensor
• Pressure loss in the cooling system from a damaged tank or cap
• Coolant overflow or unstable coolant level readings
• Replacement needs after heat cycling and age-related plastic wear

Installation Notes and Tips

Verify the reservoir shape, sensor connection, and cap style against the original unit before installation. Transfer or connect the level monitoring components as required by the vehicle configuration, and inspect hoses, seals, and mounting points for wear before refilling the cooling system. Proper bleeding of the cooling system is important after service to help prevent trapped air.

Quality Assurance

Nissens manufactures thermal and engine efficiency components for the aftermarket with controlled product development and quality-focused production standards. Part number 996279 is built to match the specified pressurized reservoir application for Mercedes-Benz cooling system service.