disco 300 tdi auto, difficult statrting + and no cruise control

i have a 1996 n reg disco 300 tdi auto, it takes at least 3 heats before it will fire and does not seem to turn over fast, when warm it still churns over to fire but not so long as would from cold, runs superb when started any ideas? also cruise control does not work, press the switch with the motorway printed on it but no light, and steering wheel switches dont do anyhitng either? my first 300 tdi so any help will be greatful?

tractorboy1 said:

i have a 1996 n reg disco 300 tdi auto, it takes at least 3 heats before it will fire and does not seem to turn over fast, when warm it still churns over to fire but not so long as would from cold, runs superb when started any ideas? also cruise control does not work, press the switch with the motorway printed on it but no light, and steering wheel switches dont do anyhitng either? my first 300 tdi so any help will be greatful?

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Hi tractorboy, if I were you I would focus all my efforts initially on the starting problem.

With Tdi 300's, bad starting can be caused by:
1. A soft battery
2. Poor earths on either the battery end or the starter motor end;
3. Worn components in the starter - brushes for example;
4. Glowplugs not working properly;
5. When starting from cold, you should never touch the acclerator pedal. If you do, this affects the ECU settings for cold starts !!!!

There's a few things to considor

Cheers and good luck

Dave

hi thanks i will starting checking in the morning

hi thanks for the replies, have found that the glow plugs take longer than 11 seconds to get hot and do not glow red, which sheds some light on the starting problem, how ever the cruise control i have trimmed back every pipe as they were all perished at the ends, but still the cruise control does no work any ideas?