Hi.I recently bought a MK1 Sharan 1.9 tdi and have a starting problem.First start in mornings take about 3 goes but once she starts she runs perfect and drives well.Once she`s warm she takes about 10 secs to start.I`ve changed the fuel filter and valve, glow plugs and the coolant sensor test fine.Now, at some stage in the past, a previous owner as by passed the glow plug relay and installed a push button on the steering column to operate the glow plugs manually. which works fine.I can`t help thinking this is confusing the ECU and thus delaying starting.Why would someone by pass the relay? Also on cold morning 1st start, I eventually get some smoke just before firing up ! Help me please before I have to spend a fortune at VW.
