In this video I'll show you how to remove, clean and replace the EGR valve on your Vauxhall Zafira. The model I have is an 07 plate 1.9 Diesel SRI. The reason for cleaning is due to excessive black smoke from the exhaust. I perform this routine once a year. I originally took the vehicle to a Vauxhall repair centre and they told me the problem was terminal and the engine needed replacing. I visited numerous other garages and was told it could be the Inlet manifold leaking, or the DPF filter (already changed) or the EGR valve. Millers diesel additive helped initially but eventually had no effect. I should probably blank the EGR valve off with a blanking plate but that requires sending the car to a garage to have its ECU reprogrammed to accomodate the loss of the EGR unit. I hope this video helps.