



At Squad Workshop, we pride ourselves on delivering top-notch automotive services, especially when it comes to air conditioning (AC) repairs. Recently, we had the opportunity to work on a BMW 318i with an AC system that was no longer producing cold air. Our meticulous approach and commitment to quality set us apart, ensuring that every job is done right the first time.
The Problem: BMW 318i with Ineffective AC
The BMW 318i in question came in with a common yet frustrating issue: the air conditioning was blowing warm air (See before temperature of 30.9 degrees Celsius 🥵). After a thorough inspection, we determined that the cooling coil (evaporator coil) needed replacement. The cooling coil is a critical component of the AC system, responsible for absorbing heat and providing cool air to the cabin. A faulty coil can severely impact the system’s performance, leading to discomfort, especially in warm weather.
Our Solution: Quality Replacement and Comprehensive System Flush
Replacing the cooling coil is not just about swapping out the old part for a new one. At Squad Workshop, we understand that to ensure the longevity and efficiency of the new coil, the entire AC system needs to be in pristine condition. This is why we perform a bidirectional flush of the AC system as part of our replacement process.
Why Bidirectional Flush is Important:
- Removes Contaminants: Over time, the AC system can accumulate debris, dirt, and other contaminants that can damage the new coil or reduce its efficiency. A thorough bidirectional flush removes these impurities.
- Prevents Corrosion: Residual moisture and old refrigerant oil can lead to corrosion, damaging the new coil and other components. Flushing the system ensures these corrosive agents are eliminated.
- Ensures Proper Lubrication: Flushing removes old, degraded oil, allowing for the addition of fresh, clean oil that provides proper lubrication for the new coil.
- Clears Residual Refrigerant: Any remaining old refrigerant can mix with the new refrigerant, causing chemical reactions or improper cooling. The bidirectional flush ensures all old refrigerant is removed.
- Improves System Efficiency: A clean system operates more efficiently, as the flush clears obstructions that could impede refrigerant flow and heat exchange.
The Process at Squad Workshop
- Diagnostic Check: We start with a comprehensive diagnostic check to confirm the cooling coil is the issue and to assess the overall condition of the AC system.
- Bidirectional Flush: We perform a bidirectional flush of the entire AC system to ensure it is free of contaminants, old oil, and residual refrigerant.
- Cooling Coil Replacement: Our skilled technicians replace the faulty cooling coil with a high-quality new one, ensuring a perfect fit and optimal performance.
- System Recharge and Test: Finally, we recharge the AC system with the correct amount of refrigerant and conduct a thorough test to ensure everything is working perfectly.
Commitment to Quality
At Squad Workshop, quality is at the heart of everything we do. Our experienced technicians use only the best parts and follow industry-leading practices to ensure your vehicle’s AC system performs at its best. For the BMW 318i, our meticulous approach to cooling coil replacement and the essential bidirectional flush restored the AC to full functionality, providing the owner with cool, comfortable rides once again.
If your car’s AC is not as cold as it should be, trust Squad Workshop for expert diagnosis and repair. Visit us at 48 Toh Guan Road East #04-131 Enterprise Hub, Singapore 608586, or contact us today to schedule an appointment and experience our commitment to quality firsthand.