AC Heater Blower Motor Resistor Control Module OEM 4b0-820-521 for 1998-2004 Audi A6 4b0820521

• Customization: Available
• After-sales Service: Aftersale Market
• Warranty: 12 Month
• Model NO.: RC-BR154
• Function: Cooling & Heating
• Control Mode: Electronically Controlled Pneumatic Adjusting
• Certification: ISO, Ts16949
• Name: Blower Motor Resistor
• Car: for Audi A6 S6 RS6 Allroad
• OEM: 4b0 820 521 4b0820521
• Shipment: Express, by Sea, by Air
• Colour: Black
• MOQ: 10 PCS
• Delivery Time: 3-30 Days
• Price: Factory′s
• Transport Package: Customized/Neutral
• Specification: OEM STANDARD SIZE
• Trademark: RECHA/Neutral
• Origin: China (Mainland)
• HS Code: 8536500090
• Production Capacity: 500000

Product Description

Product Description

AC Heater Blower Motor Resistor Control Module OEM 4B0-820-521 for 1998-2004 Audi A6

Blower Motor Resistor Types
The blower resistor plays an important role in the car air conditioning system, used to control the speed and air volume of the blower motor. Depending on the control methods, the blower resistor can be divided into the following types:

*Linear Potentiometer: 
The voltage is regulated by changing the resistance value, thereby controlling the speed of the blower motor. Linear potentiometers are used in traditional automotive air conditioning systems to adjust the air volume by connecting resistors with different resistances in series. When the low gear is selected, a larger value of resist is connected in series; when the medium gear is selected, a smaller value of resistor is connected in series; when the high gear is selected, no resistor is connected in.

*Speed Control Module:
In modern automotive air conditioning systems, the speed control of the blower motor often uses a speed control module, which controls the power output of the tube (such as a transistor) by PWM (pulse width modulation) to change the speed of the blower motor. This method is more precise and efficient, and can provide stable air volume control.

 

 

Blower Motor Resistor
Application:	For Audi A6 S6 RS6 Allroad	RC No.:	RC-BR154
OE No.:	4B0 820 521	Warranty:	12 Month
Package:	Neutral Packing	MOQ:	50 PCS
Payment:	T/T,Western Union,L/C,and so on	Shipping term:	EXW,FOB,CFR.CIFFedex, DHL, EMS, TNT  and so on
Quality:	100% tested before shipment	Certification	According the the IATF16949

Detailed Photos

 

Packaging & Shipping

One piece is packed in PVC or Bubble,tthen packing in inner box ,put inner box in the Carton.

To ensure utmost safety and security for your products, we provide professional, eco-friendly, and highly efficient packaging services that combine convenience with sustainability.
PVC or Bubble bag packing, Carton packing, Neutral packing, or tailored packaging based on specific customer requirements.

 

Company Profile

                        OUR FACTORY

ABOUT US-RECHA

Wenzhou Recha Automobile Parts Co., Ltd.With over 15 years of export experience and our official export license , we are equipped to meet your demands.
Our state-of-the-art facilities include dust-free workshops, advanced mould injection, precision paint spraying, laser marking, and efficient assembly lines.
*1. Specializing in car and truck electronic products such as auto switches, auto sensors, blower motor regulators, and more.
*2. Conveniently located in Ruian, Wenzhou, Zhejiang P.R., the automotive parts hub of China.
*3. The company spans an area of 5000 square meters and employs over 100 skilled individuals.
*4.Compliant with IATF16949:2016 standards, featuring a comprehensivemould injection workshop, circuit board production, laser marking, and an efficient assembly linethat supports automated productionfor optimal output.
Our business ethos is founded on 'quality for survival, service for market,' while our unwavering commitment to 'quality first, credit first, management first, service first' drives us to achieve customer satisfaction as motivation for innovation, ensuring the safest and most reliable auto products for every client.
We deliver top-quality products to global markets, fostering long-term partnerships across Europe, America, the Middle East, and Southeast Asia for many years.

Exhibition

FAQ

Testing method for linear resist 
The good or bad condition of a linear resistor can be tested by the following steps:
*1.Prepare a multimeter:
Connect the black line of the multimeter to COM interface and the red line to the voltage interface.
*2.Find the resistor line:
 Locate the four wires of the blower resistor (one negative line and three gearrelated positive lines) under the storage box in front of the front passenger seat.
*3.Measure the resistance value:
Touch the black line of the multimeter to the negative line of theer resistor and the red pen to one of the positive lines. Record the resistance value displayed by the multimeter. Repeat this step to measure the resistance values of the other two lines.
*4.Judge the resistance status:
If a resistance value of 0 appears, it may indicate that the blower resistor is damaged. In this case, the blow cannot adjust the gear, and only the maximum gear wind can be used. The resistor should be replaced.
*5.Precautions Safe operation:
 Before measuring the resistance, it is to turn off the car and disconnect the power supply to avoid errors in the test results and possible damage to the equipment.
6.*Prevent electric shock:
Be careful when operating to avoid risk of electric shock and ensure personal safety.
By following the above methods, the blower resistor can be effectively tested and maintained to ensure the normal operation of the car conditioning system.

Product Feature:

1) Our products are distributed across USA, Europe, Australia, Africa, South America, and Southeast Asia, among others.
2) Crafted to meet original factory specifications for assured compatibility.
3) Ensures a flawless fit with the original vehicle.
4) Designed for straightforward, hassle-free installation.
5) Exhibits stable performance with exceptional reliability.
6) Sample orders are warmly welcomed and accepted.

Welcome to inquiry us for more details.
Manufacture window switches for most of Japanese, Korean, American and European vehicles.
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Pls inform us the right OEM No., Car make and year to ensure you find the correct product.

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