Mine would come on for a few secs in the morning before I started - OK
In this recent very cold weather it does not come on first thing (although Defender 300tdi starts perfectly well) but does come on if I restart after a short journey
If anyone needs it, I have the schematic of the internals in the 200TDi preheat timer "relay". For the end user cost, there is naff all special in there, a common analogue quad comparitor IC, a handfull of R's and C's etc, and a large relay to powe the 'plugs with.
I fixed mine when it broke and kept the plugs hot for ever, cost... At that time (8 years back) under a fiver, for a new IC.
What the warning light shows, is not related to what the glow plugs are doing by the way. Two seperate systems, in one small box.
I would like a copy of that schematic, I aint convinced the relay is working. There is a voltage getting to the heaters, but dont think there is sufficent current to get things heating. Starts fine if warm but turns over for ages before starting when cold.
Yup got a set of new heaters on Eblag but seem to be the same albeit i fitted them in the summer. Do they have that short a life? Not a big diesel expert.... Is 200TDi heaters same as 300 TDi as I have a 200 sitting here waiting transplant into s3
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