Peugeot in their wisdom decided to make the indicator relays a "sealed for life" by putting them inside a sealed unit.
This means if you get the "sticky indicator" which is a known fault on 206's, you have to buy a whole unit costing £200.
However, as a last ditch method, a repair is possible costing a mere £4.00.
All credit must go to the pioneer of this method -
and is posted on the web as a fix.
The relay board /BSI is located behind the drivers side fuseboard, and is removed via a torx screw and a clip.
Undo clip, screw and all connectors, and it can be removed -
If you have an antistatic mat and a soldering iron - use them.
Open the clips and you can see the base of the relays - there are 2 of them.
If access is difficult, cut through the outer plastic with a dremel cutter or use the soldering iron to cut an access "door" - you can use foil tape to cover it if you really want to - but it's going to be hidden anyway.
Unsolder al relay pins, leaving those indicated to last .
This is the replacement -
The Relay is FBR51ND10-N (51ND10-N) From Fujitsu
The footprint of the relay is unusual - most are 12mm pitch. This one is 10mm pitch
It is still available from retailers in the US and Ebay if you're lucky.
Many thanks to JP for posting this. Here is the original website -