Pete Attryde Posted September 19, 2006 Share Posted September 19, 2006 Evening all, I have a 300TDI Auto which has developed a non-starting issue. Basically what happens is if a I do a longish motorway run (1hr+) or work it quite hard say driving around the roads in the peak district and then park up for a break or at journeys end switch off the engine and then within 15mins have to re-start the engine it wont crank. If I then wait another 10 mins or so it will start fine. Initially I thought it might be the infamous immobiliser issue's that disco's are known for how ever at the weekend I managed to locate the alarm/immobiliser unit (it's an EDC vehicle so it's not behind the centre of the dash) and took it apart, checked the soldering which all seems good. I am now leaning towards it being the start inhibit switch on the gearbox. I have already removed it cleaned and reinstalled it but the problem persists. I think that something is getting too warm and was wondering wether anyone else has experienced something similar to this or can think of another possible cause. Thanks in advance. Pete. P.S can anyone tell me the part number for the inhibit switch? Pete. Quote Link to comment Share on other sites More sharing options...
white90 Posted September 19, 2006 Share Posted September 19, 2006 Bogmonster is the expert on the spider your prob still sounds just like the two discos I had with this problem. the inhibit switch cab be by passed to remove from the equation I'd look at fitting the unit to do away wwith the spider as seen in the tech archive Quote Link to comment Share on other sites More sharing options...
BogMonster Posted September 19, 2006 Share Posted September 19, 2006 I've no experience of malfunctioning EDC vehicles but there are only a couple here so that's why! I don't know if the same fault affects them or not. Quote Link to comment Share on other sites More sharing options...
imspanners Posted September 20, 2006 Share Posted September 20, 2006 To temporarily bypass the starter inhibit circuit, just put a wire between earth and pin 86 of the starter relay (K137 in piccy/attachment): Quote Link to comment Share on other sites More sharing options...
Pete Attryde Posted September 20, 2006 Author Share Posted September 20, 2006 Cheers for that info. Pete Quote Link to comment Share on other sites More sharing options...
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