As I said, we found this:
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the top of one of the diags, just right of centre, is a bit with 4315
written below it. We think this might be the site of the problem. Does anyone know where on the car it is please, before we consider dismantling everything to try to find it!
X posted also to uk diy just in case anyone there can help
TIA again
-- Holly, in France Gite to let in Dordogne, now with pool.
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