2006 berlingo multispace forte right indicator issues

[jadebarton@tiscali.co.uk]

Morning.
My right indicator is playing up
When engaged it flashes a couple  of times then stops whilst still engaged. 
Left indicator is fine. 
Probably not related but whenever ive travelled longer journeys and higher speeds seems to start working again. 
Any idea of issue and is it easy to fix?
Bulbs are all fine, hazards fine etc

[Sol]

Check the earthing at both ends of the car around the indicator lights, check for corrosion etc. The indicators are controlled by the BSI and not directly connected to the stalks in any way, so it is likely the BSI is trying to light them up. Unusual that speed would be an issue or a long drive would fix it temporarily.

Quick guess if those are ok, would be an issue with the BSI relay for the indicators on that side, perhaps overheating and cutting out - but they are soldered into the PCB and not easy to replace. Are the bulbs proper 21W indicator lamps?

[oilyrag]

I'd take a guess that the battery/charging system is at its best when running at higher engine speeds and maybe overcomes some resistance - as Zion says check all earths and although the bulbs look OK check their contacts and either clean them up or replace the bulbs anyway.