i have a 52 zafira 2 ltr diesel its got starting problem, i changed the glow plugs along with the relay but it seems that glow plugs still dont work although the light comes on when i turn the key and i have taken the glow plugs out of the cylinders and turned the key to check but they dont heat up
your glow plugs have to be bolted in to work, it could be a fuel problem though they are renowed for injector seals leaking causing fuel to drain back and wont start as for glow plugs if there new and relay is new just make sure your getting live and earth to the relay
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