1996 A6 2.5 Tdi Quattro Estate Glow plug problem
Hi there, my first post to this forum so please bear with me!
My car (5 cyl 140bhp) has just begun to struggle starting. Basically, although the glow plug light comes on for a couple of seconds, there is no power getting to the glow plugs. If I carry on cranking the engine, it starts eventually with a cloud of smoke (presumably unburnt fuel). The haynes manual just says to check the glow plug relay - could anyone tell me exactly where this is or if there is anything else I should check.