I was checking on something earlier tonight and ran across this tidbit, I don't know, but if your relay's are original maybe this would interest you, its from the Fastline Catalog:


"Bosch superseded the glow control relay to a new glow plug kit which includes a new controller and 4 glow plugs. This new controller allows the glow plugs to continue functioning up to 3 minutes after the vehicle has been started, providing a smoother engine start up and less exhaust smoke. It is important to keep this in mind when testing the glow circuit func- tionality. For vehicles with 5 cylinders, 1 additional glow plug is required (0 250 201 039)."

Just a thought! Good Luck Gents!