Review on 🔌 Hella 007791011 12V 40 Amp SPST Relay: High-Performance with Resistor for Efficient Power Distribution by Pete Door

My 2009 C300 had an engine light on. I looked at the code that said the pump was smoke and noticed a squeaking noise when the car cold started, so replacing the pump made sense. After restarting, the indicator light came on again and the pump did not work. So I checked the fuse, the fuse was blown. fuse replaced. Still broken. Finally tried this relay and the smoke pump worked. I'm not sure how all three went badly, but it can happen.