Mercedes Benz W124 Power Window Issue
From the W116 and W126 models, Mercedes Benz began incorporating sophisticated electronic systems to control various parts of their vehicles. If you own a W124, you're probably familiar with the advanced electronics it boasts. In fact, the W124 took these innovations further, introducing even more sophisticated and widespread use of electronics across different systems. This model marked a pivotal transition for Mercedes, paving the way for the high-tech, electronically controlled vehicles we see today.
However, the W124 is also known for something a bit more infamous: its biodegradable soy-based wiring harness, which, unfortunately, became a treat for rodents! 😋 Jokes aside, the W124 is packed with advanced systems like the Comfort Control Unit (CCU), which manages electronic windows, cabin lights, central locking, the sunroof (if equipped), and other optional features. The CCU is tucked under the rear seat, in the left-hand corner. To access it, you'll need to remove the…



I disagree with the mechanic. A metal fan is heavier and will put more load on the water pump. The plastic fan will probably have more blades and be lighter. I would go for the plastic fan. I'm restricting my comments to the fan only as that was the question.