trip computer problem?

[alastairbax]

Hi all, recently bought a Bora 2002 130 TDi,
I have been looking at some other threads regarding fuel consumption and have seen several things that may be of issue.
I haven't got round to testing the MPG by briming the tank but the fuel gauge is indicating i've used just over 1/4 of a tank on 150 miles which seems pretty good but my trip computer is reading an average of 30-35mpg under easy driving.
also my outside temp sensor is not working just displays '----' and my headlight warning buzzer doesn't sound if I open doors with headlamps on.
Are these three problems related in any way?

cheers for any help or redirection to another thread!

[kite]

The lights on buzzer not working is prolly the microswitch thats built into the drivers door lock.
The outside temp sensor is located in front of the rad, have a look and see if its there.

[alastairbax]

will check both, thanks for the info.
does anyone have an answer as to why my MPG on the trip computer seems bad?

I will be changing the engine oil and gear oil (shes a bit rough in the cold until warmed up) this weekend.
Ive read threads suggesting MAF or coolant sensor are common faults for poor fuel consumption.