Join Date: Feb 2008
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I understand your frustrations.
Suggest you disconnect plug to the top temperture sensor, see post 15.
will then default to max glow plug preheat time. If then no further start problems, have that temperature sensor renewed and get injection timing checked and adjusted.
Please note that slighly retarded injection timing won't show up on normal diagnostics.
I have stated this before but does no harm repeating it: The engine shall start regardless how bad or fubarred the glow plug system is as long as injection timing is correct and not substantially below zero degrees C. I take it that none of the garages you have consulted have actually checked injection timing. Don't waste any more money on these monkeys and head directly for a diesel specialist that can do Renault engines.
A pity you are based that far south.
I only charge a meagre fee of 40 pounds to measure and adjust timing on these engines equipped with Bosch pumps. The only problem is there is a very long drive from London to Aberdeenshire.
Currently in tolsen's garage:
Trekka 1.9 DCI, Smart Cabrio Cdi (65 - 85 MPG) & Ford Transit 2.2 Duratorq TDCi