Disco td5 won't start

Try shutting all doors lock using remote then unlock and try again?

Had an ML 270 Mercedes 4wd a few years ago - a real dog of a thing and it was the most unreliable (and expensive) vehicle I've ever owned. It was plagued with "Bill Gates" problems and I found that by removing and replacing the +ve battery terminal "rebooted" all the onboard computers and got me going again. Had to reset radio each time but it seemed to fix the glitches. Check your handbook first to make sure that by doing this you don't create more problems though.

I had a car a few years ago that had intermittent start problems. I checked all the usual stuff - spark, fuel flow etc but no go. Leave it a while and it would start ok. After a non-start episode I towed it to the agent one time and they found nothing but changed a small in-tank fuel filter and I had no more problems.

When I checked for fuel flow everything looked ok as fuel gushed out of the hose when cranking. Seems that the fuel pump was working ok but the pressure was not quite up to what the computer was looking for so the computer would not switch on the injectors ! There was a fuel pressure transducer some place that I never did find.

Hi Burnsy,

Have had same problem check on fire wall in engine bay l/h side, there was a cut out switch mounted it was to cut off fuel supply in event of head on prang. cant remember which mod disco anyhow if you have one try it

regards Norm.

Thanks for your reply I will let you all know if we sort it out

Try disconnecting the battery and then reconnecting. It is a bit like ctrl/alt/delete on the computer. It may reset whatever it is causing the problem.

I did that a couple of times on my TD5 Defender and it worked.

Good luck