u/Strict_Cranberry_990

So I cleaned my EGR system before, and today I cleaned the EGR cooler. I thought it might be hard without a pressure washer, but honestly it was mostly fine with just boiling water and OxiClean. For the final step, I used some carb cleaner to remove the last traces of oxidation.

Also, you’ll need an E8 E-Torx socket to remove the studs that hold the EGR valve and EGR cooler together. The first time I removed the EGR valve, I used a 6mm socket, but later I bought the proper E8 socket. I ended up buying a whole set since it was almost the same price as buying just the E8 socket plus $5 or smth like that.

Total cost was around $30 plus your time.