Upgrading your vehicle’s cooling system is crucial for performance, especially for modified cars. One popular upgrade for VAG vehicles is the PLM Heat Exchanger. While often paired with VCDS (VAG-COM Diagnostic System) for diagnostics and adjustments like optimizing the “OPLM” (Oil Pressure Limit Monitoring), this guide will focus on the How To Install Vcds Oplm, specifically the PLM Heat Exchanger installation process. We’ll cover a firsthand experience with a detailed walkthrough.
While this guide doesn’t directly address VCDS OPLM manipulation, understanding your cooling system’s health is vital before making any software adjustments. A properly functioning cooling system ensures reliable engine operation and prevents potential damage from overheating, especially important after modifications that increase engine stress.
PLM Heat Exchanger Kit Overview
The PLM Heat Exchanger stands out by utilizing the stock coolant loop instead of a separate system. This simplifies installation and maintenance, allowing for easy coolant level monitoring and reducing the risk of unnoticed leaks. The kit boasts high-quality components, including stainless steel hardware and factory clamps, ensuring a durable and reliable upgrade. It even includes provisions for an auxiliary ADS cooler. As you can see, the kit comes well-packaged and includes all necessary hoses, hardware, and even a drill bit for mounting.
PLM Heat Exchanger Quality and Design
The heat exchanger itself is well-constructed with clean welds and a bracket for an additional ADS cooler. The included coolant reservoir is equally impressive, featuring a black anodized finish and clean welds. The quality of the welds ensures longevity and leak-free operation. All necessary fittings and connections are provided. The coolant reservoir is equally well-made. The included hardware, featuring stainless steel and factory clamps, further emphasizes the kit’s quality.
Installation Process and Challenges
Although the kit lacks formal instructions, the installation process is relatively straightforward. One minor challenge involved identifying the correct hoses, as the kit includes some for the B8.5 model that aren’t necessary for all applications. Prepping the heat exchanger for installation often involves painting it. In this case, Eastwood Radiator Paint was used. Installing the reservoir is a simple process. The heat exchanger installation is also quite straightforward.
Performance Testing and Results
Temperature measurements before and after installation demonstrated the PLM Heat Exchanger’s effectiveness. Before installation, coolant temperatures reached 199-200°F after a 30-mile drive in 68°F ambient temperature. Various temperature readings were taken at different points in the cooling system. After three hard pulls, temperatures were measured again.
With the PLM Heat Exchanger installed, temperatures ranged from 196-200°F in a 60°F ambient temperature. Notably, the coolant temperature never dropped below 199°F with the stock heat exchanger, suggesting improved airflow to the radiator with the PLM unit. Post-installation temperatures were recorded as well.
Conclusion
The PLM Heat Exchanger offers a significant cooling upgrade for VAG vehicles, especially those with performance modifications. Its high-quality construction, ease of installation, and noticeable performance improvements make it a worthwhile investment. While VCDS and OPLM adjustments are separate procedures, ensuring a robust cooling system, like with the PLM Heat Exchanger, is paramount for engine health and performance.
