CSF Radiators 3718: Radiator, BMW

The CSF 3718 Radiator has received mixed feedback from customers, primarily focusing on issues related to the fittings and leaks, particularly at the drain plug. Many users have reported installation challenges, including difficulty in fitting the radiator properly within their vehicles, such as tight spaces and problematic hose fittings. Despite these issues, some customers appreciated the overall quality of the radiator and its resemblance to the original factory unit. A notable recurring problem involves the drain plug, which several users found defective, leading to significant leaks that rendered the radiator unusable shortly after installation. This has caused dissatisfaction among customers, particularly for those who have already gone through the hassle of the installation process. Some users expressed regret about not opting for the OEM BMW version from the beginning, believing it would have saved them trouble in the long run. In contrast, there are individuals who felt that the CSF radiator could be a solid upgrade compared to other aftermarket options, citing improved Construction and performance. These more favorable reviews noted that after necessary modifications, the radiator held up under pressure testing without issues. Overall, while the CSF 3718 Radiator has some promise as a replacement part, potential buyers should be aware of the installation challenges and the common issues with the drain plug to make a well-informed decision. **