Heater Matrix BMW F90 M5 G11 G30 Air Conditioning Unit Housing Diesel 2655240

Heater Matrix BMW F90 M5 G11 G30 Air Conditioning Unit Housing Diesel is an original, used air conditioning system component designed for diesel-powered BMW vehicles. It is a key part of the heater and air conditioning unit housing, responsible for proper airflow management and integration with the cabin heat exchanger. Thanks to its factory design, it ensures a precise fit for the interior architecture and HVAC installation in high-end BMW models.

Specifications and technical data

• SKU: 6997685
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6997685
• Substitutable numbers: 64116997685, 6997685, 2655240, BG
• Fuel type: Diesel
• Category: Other Air Conditioning & Heating

Purpose and function in the air conditioning system

The described heater and air conditioning unit housing is a central element of the HVAC module, which integrates air ducts, the heater core, and components controlling airflow distribution. In BMW F90, G11, and G30 series vehicles, it is responsible for:

• stable mounting of the heater core within the dashboard structure,
• sealed airflow through the heat exchanger,
• cooperation with flaps controlling temperature and airflow direction,
• maintaining the proper geometry of the air conditioning system in the cabin.

As a result, the heating and air conditioning system can operate predictably, and the driver receives stable airflow parameters, which translates into thermal comfort in all conditions.

Compatibility with diesel units

The element has been designed to work with BMW vehicles powered by diesel fuel. In practice, this means it is matched to the thermal characteristics of diesel engines and the factory configuration of coolant hoses and air conditioning installations in these powertrain versions. Using the correct heater housing for a specific fuel type reduces the risk of leaks, system bleeding issues, and improper temperature distribution in the cabin.

Advantages of using an original BMW component

Choosing an original heater and air conditioning unit housing for a BMW brings a number of practical service and utility benefits:

• Factory fit – maintaining the original geometry and mounting points facilitates installation and minimizes the need for modifications.
• Consistency with the HVAC system – compatibility with stock air ducts, heater core, evaporator, and control elements.
• System stability – proper airflow through the heater core promotes even interior heating and efficient air conditioning operation.
• Seamless integration with vehicle electronics – maintaining the HVAC module architecture intended by the manufacturer.

Condition, installation, and service application

The presented item is a used part, making it an attractive solution for post-accident repairs, replacing a damaged housing after dashboard removal, or for a comprehensive renovation of the heating and air conditioning system. In practice, it is most often used in situations where:

• mechanical damage to the housing occurred during dashboard disassembly,
• there are leaks within the HVAC module,
• it is necessary to replace the entire heater body due to previous unprofessional repairs.

Thanks to the preservation of the original design, the installation proceeds in an orderly manner, and the risk of interior component fitment issues is limited.

Expansion and selection of related BMW components

If you are planning a comprehensive repair or upgrade of the air conditioning and heating zone in your BMW and need other elements from the same group, such as air ducts, control flaps, or additional housing modules, check the available parts in the Other BMW category.

For a comparison of design solutions used in sports models of other brands and a better understanding of the differences in powertrain construction and associated components, it is worth reading the article Audi RS vs other models – what is hidden under the hood and chassis?, which discusses, among other things, the specifics of powertrains, brakes, and chassis in high-performance cars.