Anyone know what size spanner I need to undo this with? 10mm is too big, so is it 8 or 9mm.
Would I be wasting my time using anything other than a specialist brake spanner? From personal experience, what's the likelihood of them shearing off (20%, 50%)?
I'm renewing the brake fluid. Presumably, I only need to get one on each diagonal circuit to undo.
Any tips (including maybe, use a garage) welcome.
Model is a 1.4 GR 1992 and I have a pressure bleed kit.