Vemo V15-99-2044 Engine Coolant Thermostat Housing

Engine Coolant Thermostat Housing for Audi A4

Vemo V15-99-2044 is a pre-assembled engine coolant thermostat housing for select 2009-2012 Audi A4 and Audi A4 Quattro applications. It includes the thermostat and seal in one package, with an 87°C opening temperature for OE-style cooling system service.

Key Features

• Engine coolant thermostat housing assembly
• Pre-assembled mounting type for streamlined replacement
• Includes thermostat and seal
• 87°C opening temperature
• Dimensions: 150 mm length, 140 mm width, 105 mm height
• Packaged as VEMO Expert Kits+ for one-box parts coverage
• Cross-reference part number: 03L121111AD

Product Details

Built under the VEMO brand line, VEMO Expert Kits+ packages the needed components together in a single box for a more complete thermostat housing service. Part number V15-99-2044 is specified for Audi A4 and Audi A4 Quattro models from 2009 through 2012, with OE reference 03L121111AD. This engine coolant thermostat housing is listed as an integral thermostat design and is supplied with a seal for direct cooling system repair work.

What It Helps Address

• Coolant temperature regulation issues
• Thermostat housing leakage at the cooling system interface
• Faulty thermostat operation affecting engine warm-up
• Cooling system service needs on Audi A4 and Audi A4 Quattro
• Replacement of worn OE-style thermostat housing assemblies

Installation Notes and Tips

Verify the OE number, 03L121111AD, and confirm vehicle application before installation. This part is pre-assembled and includes the thermostat and seal, so it is suited to thermostat housing replacement on compatible Audi A4 and Audi A4 Quattro vehicles. Check cooling system condition, inspect mating surfaces, and refill and bleed the system according to factory service procedures after installation.

Quality Assurance

VEMO Expert Kits+ is organized to supply the required parts in one box, supporting a complete repair approach for cooling system service. Vemo V15-99-2044 is built to match the listed OE application for 2009-2012 Audi A4 and Audi A4 Quattro models.