I'm currently having some issues with my 2010 face-lift Octavia vrs. It started yesterday morning, drove to work without issue then around lunchtime when I got in and started it, it started and ran for maybe 10 or 15 seconds before shuddering and cutting out. Since then it will turn but won't fire. I tried putting a jump-start pack onto it but although it seemed to be getting closer to firing up it still didn't. I gave up after a while as it was starting to get dark and I didn't want to do any damage by constantly trying to start it. 

 

Is there any suggestions as to what might be the issue, or anything I can try to get it started and home so my mechanic can have a look at it?

any chance of getting it plugged into a diagnostic? my instinct says cam position sensor,

or try unplugging the MAF

18 minutes ago, mac11irl said:

any chance of getting it plugged into a diagnostic? my instinct says cam position sensor,

or try unplugging the MAF

 

I'd say cam position sensor as well, just based on the Audi A4 local to me that had the same issue.

Normally if the cam sensor goes it will still start as it uses the crank sensor as it's main reference  but if the crank sensor goes it won't start

I got my insurance to come and get it home to my mechanic so it's with him now. I'll update when I hear from him.

45 minutes ago, nige8021 said:

Normally if the cam sensor goes it will still start as it uses the crank sensor as it's main reference  but if the crank sensor goes it won't start

 

Correct, the cam sensor is only used so the engine can start in one revolution and as a checksum for the crankshaft position sensor output.

goddam it, i was close!!! 

 

I'm picking the car up tomorrow when I get home but by all accounts the car is back running as it should. The mechanic said the high pressure fuel regulator valve needed replacing. 

 

Would that have given warnings before going or is it a case of only causing issues when gone. Reason I ask is, the day the car broke down I noticed the revs jump a little more often than normal but I put it sown to the dpf regeneration.