A0002343511 A0002340003 DCP17114 RC.600.219 Auto ACCompressor For 10S17C MERCEDES BENZ SPRINTER WXMB025

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Automotive A/C Compressor Repair Guide

1. Common Compressor Problems

A. Refrigerant Leaks

Symptoms: Weak cooling, hissing sounds, oily residue around fittings.

Solution: Use UV dye or electronic leak detector to locate leaks. Replace O-rings, seals, or damaged lines.

B. Clutch Failure

Symptoms: Compressor not engaging, no cold air, burning smell.

Solution:

Check clutch coil resistance (typically 2–5 ohms).

Inspect wiring and relays.

Adjust/replace the clutch assembly if worn.

C. Internal Damage (Seized or Noisy Compressor)

Symptoms: Loud grinding noise, A/C not working, belt squealing.

Solution:

Check refrigerant/oil levels (low oil causes seizure).

If seized, replace the compressor and flush the system.

D. Electrical Issues

Symptoms: Intermittent cooling, fuse blows, clutch not engaging.

Solution:

Test pressure switches, relays, and wiring.

Ensure proper voltage (12V+) reaches the clutch coil.

2. Step-by-Step Repair Process

Step 1: Diagnosis

✔ Check refrigerant pressure (low/high pressure indicates leaks or blockages).

✔ Inspect the clutch for engagement when A/C is turned on.

✔ Listen for unusual noises (grinding = bearing failure; clicking = electrical issue).

Step 2: System Recovery & Evacuation

Recover remaining refrigerant using an A/C machine.

Evacuate the system (vacuum for 30+ minutes to remove moisture/air).

Step 3: Compressor Removal

Discharge refrigerant safely.

Remove the serpentine belt and unbolt the compressor.

Drain and measure old oil (replace with correct PAG/ester oil).

Step 4: Replacement/Repair

Install a new/rebuilt compressor (ensure correct model).

Replace the receiver-drier/accumulator and expansion valve.

Lubricate O-rings with A/C oil before reassembly.

Step 5: Recharge & Testing

Recharge with the correct refrigerant amount (check vehicle specs).

Test for leaks and verify clutch engagement.

Check vent temperatures (should be 8–12°C / 45–55°F at max cooling).

3. Important Precautions

⚠ Never open a pressurized system – Recover refrigerant first.

⚠ Use the correct oil type – Wrong oil can damage the compressor.

⚠ Flush the system if debris is present – Metal shavings from a failed compressor can clog the new unit.

⚠ Follow torque specs – Overtightening bolts can crack housings.

4. When to Replace Instead of Repair?

Severe internal damage (broken pistons, seized bearings).

Excessive metal debris in the system (requires full flush).

Frequent failures (indicates deeper system issues).

Guangzhou Wei Xing Automobile Air Conditioning Parts Co., Ltd.

        Guangzhou Wei Xing automobile air conditioning parts Co., Ltd. was founded in 1998, is an automobile air-conditioning compressor factory, 20 years specializing in automotive air-conditioning compressor production, research and development, processing services. 

        Stable quality and professional services have been recognized and supported by customers in more than 50 countries all over the world. In order to meet the needs of customers and better service customers, the company set up sale shop in 2005, the main sales of own brand "WNRLN" and foreign well-known brands of compressors and automotive air-conditioning systems related accessories.

       With the globalization of the world and the development of the Internet, the company began to open the official website in 2015 to realize the diversification of online and offline sales,allowing customers to have a better shopping experience. In the past 20 years, we have developed a professional technical team and sales team to provide professional overall solutions and provide the whole set of air-conditioning design and production services. Professional attention enables us to go further, and it is our mission to bring China's good quality to the whole world.

Your Best Choice！

At our automotive air conditioning compressor company, we are dedicated to providing exceptional service to our customers. Our service philosophy revolves around three key principles:Service, Quality Assurance,customer satisfaction.

First and foremost, we are committed to responsiveness in our customer service approach. We recognize that issues with air conditioning compressors can arise unexpectedly and may require urgent attention. That's why we have established a dedicated customer support team that is available around the clock to address any concerns or inquiries. Whether it's troubleshooting technical issues, providing guidance on installation and maintenance, or processing warranty claims, our team is always ready to assist our customers promptly and efficiently."After-sales service make permanent customer".

Secondly,we prioritize reliability in everything we do. We understand the critical role that air conditioning compressors play in the functionality of vehicles, especially in hot climates or during long journeys. Therefore, we ensure that our products are built to the highest standards of quality and durability. From the materials we use to the manufacturing processes we employ, reliability is at the forefront of our operations. Additionally, we offer comprehensive warranty coverage and after-sales support to instill confidence in our customers regarding the performance of our compressors.

Furthermore,We closely monitor market trends and customer feedback to identify areas for improvement and innovation. By staying at the forefront of technological advancements, we aim to deliver products that exceed our customers' expectations and set new industry standards.

In addition to these core principles, we place a strong emphasis on building long-term partnerships with our customers. We believe that open communication, mutual respect, and trust are essential for fostering successful business relationships. We actively seek feedback from our customers and use it to drive continuous improvement in our products and services. By aligning our goals with those of our customers and working collaboratively towards shared success, we aim to create value and sustainable growth for both parties.

We aim to be the preferred choice for automotive air conditioning solutions globally.