Fuse box diagram in english
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number 39, a 15A standard car fuse for the box under the bonnet.
ill have plenty of spare relays as well if you need me to post to to check if this is your issue, but i don't think you'll need any as it's just a stock fuse for the indicators. buy a multi pack from ebay/halfrauds, Euro's, CEF, Screwfix etc.