buzzing

Having few issues with the dim dip relay on 200 tdi, its the pink one behind dash binnacle.side lights and flash work but no main beam and loud buzzing noise from the relay,I have pulled the relay and tried the short wire bypass trick but still no main beam also seems to be effecting the rear fog light as in its not working, do I just need to replace the relay.,?
Thanks

Dodgy earth?

Was the dim dip relay, popped a new one in this evening and all lights are back to normal YWC10050 £7 quid off the ebay