KAX Blower Motor Assembly for Audi Q5/A4/Macan (220W, 12V) — Direct-Fit HVAC Fan, 3800 RPM

KAX 700301 is a direct-fit 12V blower motor assembly designed to replace the factory HVAC fan in select Audi and Porsche models, delivering OE-style airflow and performance.

Replace a noisy, weak, or failed HVAC blower with this KAX-engineered unit built to match factory fit and function. Engineered for models including Audi Q5 (2013–2017), A4/A4 Quattro (2013–2016), various A5/S4/S5/SQ5/RS5 years and Porsche Macan 2015–2025, the assembly includes the motor, fan cage and resistor locations needed for straightforward installation. Rated at 220W and 3800 RPM with clockwise rotation, it uses a two-port male connector and runs on 12 volts.

Which vehicles will this blower motor fit?

This KAX blower motor is matched to a broad range of Audi platforms and Porsche Macan years. It replaces specific OEM part numbers and is intended as a direct OE-style swap so you can avoid modification.

• Primary fit: Audi Q5 (2013–2017), A4/A4 Quattro (2013–2016), A5 Quattro (2012–2017).
• Additional coverage: S4, S5, allroad, SQ5, RS5 across listed model years.
• Porsche Macan fitment: 2015–2025 for 2.0T and 2.9T variants.
• Reference OEM numbers matched: 700301, 8T1820021, PM4590, BM4590C and others for verification.

How does this motor perform compared with the factory unit?

KAX supplies an OE-quality replacement built to the same form, fit, and function standards as the original equipment part. With a 220W rating and 3800 RPM speed, it restores strong, consistent airflow through the vehicle’s HVAC system.

• Rated power: 220 watts for robust airflow.
• Speed rating: 3800 RPM for efficient circulation.
• Rotation: clockwise (CW) matching factory orientation.
• Electrical: 12V with two-port male connector for direct plug-in.

What’s included and what should I check before installation?

The assembly ships with the blower motor, fan cage and resistor interface points to replicate the original module. Before installing, confirm the part number and connector type to ensure compatibility with your vehicle’s wiring and mounting points.

• Included: blower motor with fan cage and resistor mounting provision.
• Connector: two-port male electrical plug; verify match to vehicle harness.
• Mounting: designed for direct bolt-in where factory part used the same layout.
• Cross-reference: check OEM references like 700301, PM4590 or 8T1820021.

Will this part improve cabin comfort and reliability?

When the original blower weakens or seizes, you’ll notice reduced airflow and noise; installing this replacement restores designed ventilation performance. It’s built to OEM tolerances to provide dependable operation and consistent air delivery through the vents.

• Restores airflow to factory levels for effective climate control distribution.
• Reduces blower noise when replacing worn bearings or motors.
• OE-quality construction helps ensure long-term reliability under normal use.
• Simplifies replacement with application-specific fitment to minimize installation time.

Who this part is for: Owners and technicians servicing Audi Q5, A4, A5, S4/S5/SQ5/RS5 and Porsche Macan vehicles who need a direct replacement blower motor assembly that replicates OEM fit and performance. Ideal for those replacing a failing blower that causes weak airflow, odd noises, or intermittent fan operation. Professional installers and DIYers who verify the listed reference numbers and connector type will find this KAX unit a practical, cost-effective replacement to return HVAC performance to original specifications.