I have a 2007 vw touran 1.9tdi it his the bxe engine. It ran perfect and starts perfect on a downhill, but don't start on a uphill.

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It could be many things. Does the engine turn over, but doesn't fire? A flat battery is the obvious one. There is help and videos in the link.

https://www.google.com/search?q=vw+touran+1.9+tdi+wont+start

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ask your mechanic

Google search "How to remove 2007 VW Touran boot door panel".
Do a Google search before going to Fixya; it's faster and you won't have to wait for someone to answer your question.

sounds like a fuel pump fault, gravity is the only thing feeding the engine, then when engine is running the suction is sucking fuel in.

on diesels there are glow plugs in the head which ignite the diesel mist and assist the start process. By keeping the key in start longer it appears that some or all of the glow plugs are not working . Have them checked out as it will eventually damage the starter

my younger brothers' truck did the same thing and there was a relay up under the dashboard that would get hot and shut of(kind of a circuit breaker unit) most of the operating systems will flash at you when only battery voltage is available which explains the lights coming on..these newer trucks also have a performance chip in the system that will act up when it gets warm also..replace this and you may be ok..let me know what happens also.. good luck.

need more info what happened when it wen't into limp mode. were you just driving down the road, uphill downhill? there could be any number of reasons. Limp mode is so that you don't wreak the engine. What year car? did it throw an engine light. if so have it read to find out what is the problem. Other causes low antifreeze, low oil, trans overheating. You can try to unhook the pos battery cable for 10 minutes, if that does't clear the computer then you will need to see the dealer.

Hi, I have a vw touran 2004 1.9tdi. I have changed my alternator and radio code went and don't have the code. I have got the serial number but u can't actually can't get the code back. Can any one help me please?

JUST A THOUGHT,AND I AM CLUTCHING AT STRAWS,UNTIL I GET INTO WORK,HAVE YOU TRIED RESETTING THE IMMOBILISER SYSTEM.......

dealer to reset trans control module