Dash digits

[Li-D]

Hi got a R reg mk3 golf gl tdi.

When I turn ignition on it used to read 1n 000 I think, now its sayin 1n 002 and flashing. But car doesnt seem to be drivi.g any different but suspect its running in limp mode since I got it a month ago

[Screech16v]

Those are just service indicators 01 minor service,02 is major service interval iirc,think theres a guide on here somewhere to reset it,may tell you in your handbook also 

[Li-D]

Ah right ok thought they mau have been fault codes. Had its major done 6k ago I.e belt all filters and fluids etc...

[Bandit127]

...think theres a guide on here somewhere to reset it...

There is. It's here:
http://www.golfgtiforum.co.uk/index.php?topic=91975.0

[gti gaz]

as above easy to get rid off will not affect the way the car will drive in any way, if you can not do it yourself go to a vw garage and ask one of there fitters to do it for you