Gates EHV152 HVAC Heater Control Valve - Heater

Electric Coolant Valve for Audi Thermal Control

The Gates Electric Coolant Valve EHV152 is an OE Performance HVAC heater control valve built for modern thermal management systems. It regulates coolant flow for passenger cabin heat and, on electrified platforms, supports battery heating and cooling functions.

Compatible With select Audi Q7, RS Q8, RS3, S8, SQ7, A8 Quattro, and TT RS Quattro applications, this electric coolant valve uses a plastic body with a female connector and 19 mm inlet and outlet port diameters. The Gates EHV152 is a direct-fit service part for vehicles that rely on electronically controlled coolant routing.

Key Features

• OE Performance electric coolant valve for HVAC and thermal management systems
• Plastic construction for factory-style fit and function
• Female connector for the specified vehicle harness connection
• 19 mm inlet port outside diameter and 19 mm outlet port outside diameter
• Single-port valve design for controlled coolant routing
• Used in passenger compartment heater control and battery thermal management on select vehicles

Product Details

Gates EHV152 is part of the Electric Coolant Valve line, a product line focused on electronically controlled coolant flow in both internal combustion and electrified vehicles. In the cabin heating circuit, the valve helps regulate coolant movement through the heater core so the HVAC system can maintain the requested temperature. On electrified platforms, it also supports battery temperature control to help preserve efficiency and battery life. This part cross-references Genuine 4H0121670A for the same application.

Common Issues This Part May Address

• No cabin heat or inconsistent heater output
• Incorrect coolant routing through the heater core
• Temperature control faults in the HVAC system
• Thermal management issues on electrified Audi models
• Valve response problems caused by worn or failed electric coolant control components

Installation Notes and Tips

Verify connector style, port diameter, and vehicle application before installation. This part is listed for heater and thermal management positions on select Audi models, including 2011-2013 Audi A8 Quattro, 2016-2024 Audi Q7, 2017-2021 Audi A8 Quattro, 2018-2024 Audi RS3, 2018-2024 Audi TT RS Quattro, 2020-2024 Audi S8, 2023-2024 Audi RS Q8, 2023 Audi SQ7, and 2024 Audi RS3. Confirm the original valve location and coolant routing path during service.

Quality Assurance

Gates manufactures this valve to OE Performance standards for the specified Audi applications. The EHV152 is built to match the electrical and dimensional requirements of the original coolant control valve used in these systems.