Elparts19571029 Glow Plug

Used on smart fortwo 54bhp diesel. Glow plug light was coming on for 5 secs, then going out as car started, then coming on for 30 secs before extinguishing.Cause... One burned out Glowplug.Because all three should be identical, and the old plugs were CZ108 12V, I replaced all 3 with these CZ158 equivalent 7V plugs as recommended now by Mercedes.Results... 2 Sec warm up means Glowplug light is off as you hear the starter kick in. These are 15min long afterglow ceramic plugs, so the car runs smoothly and quieter immediately from startup...and as a result, better fuel consumption, and cleaner DPF...