Audi A4 S4 B9 Q7 4M Capacitor B41991-B5648-Q2

Audi A4 S4 B9 Q7 4M Capacitor is a component from the Condensers (radiators) group, designed for air conditioning systems in Audi vehicles. The offered component comes from the manufacturer's original line, which ensures proper fitment to the factory installation and stable operation of the entire refrigerant cooling system.

Specifications and technical data

• SKU: B41991-B5648-Q2
• Mark: Audi
• Condition: Used
• OEM Part Number: B41991-B5648
• Substitutable numbers: B41991-B5648, B41 991 -B5 64
• Category: A/C Condensers

Purpose and function in the air conditioning system

The condenser in an air conditioning system is responsible for dissipating heat from the refrigerant, which directly affects cabin cooling efficiency. Using a component dedicated to the Audi A4, S4 B9, and Q7 4M platforms allows for maintaining the correct operating parameters of the compressor, expansion valve, and other system components.

Thanks to a design consistent with the solutions used by the vehicle manufacturer, the condenser maintains proper refrigerant flow and stable operating pressures, which reduces the risk of overloading other air conditioning components.

Benefits of using an original Audi condenser

Using an element from the Condensers (radiators) group dedicated to Audi translates into a number of practical operational benefits:

• maintaining the factory operating characteristics of the air conditioning system,
• proper heat dissipation from the refrigerant,
• reducing the risk of leaks resulting from dimensional mismatch,
• better compatibility with original hoses, mounts, and accessories.

Selecting a component consistent with Audi's solutions helps maintain a stable temperature in the cabin, which is important for both driving comfort and the durability of other system components.

Product characteristics and fitment

The offered condenser is a part designed for Audi vehicles, which facilitates integration with factory brackets, the front frame, and the air conditioning hose system. As a result, installation can be carried out without the need for structural modifications to the vehicle.

The product has assigned catalog numbers and interchangeable numbers, which allows for precise verification of compatibility with a specific body and engine version. Before purchasing, it is worth comparing the markings with the vehicle documentation or the removed part to confirm compatibility.

Condition and service application

The item is offered as a used original component, which represents a reasonable compromise between repair costs and maintaining factory technical specifications. This type of solution is often chosen for comprehensive air conditioning system repairs when it is necessary to replace several components at once.

This type of condenser will work well both for standard replacement of a damaged part and for restoring system functionality after a collision, provided that proper diagnostics and service are performed by a qualified workshop.

System expansion and selection of related components

If you are planning a comprehensive repair or upgrade of the air conditioning area in your Audi and need other elements from the same group, such as additional radiators, air conditioning hoses, or mounting elements, check the available parts in the Audi Condensers (radiators) category.

When deciding to use aftermarket components for electronics and accessories, it is also worth reading practical tips on selecting such parts – the article Second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors? may be helpful, as it discusses key aspects of choosing used components in modern vehicles.