Was -10 on Thursday morning at my parents (Cairngorms), so the washers wouldn't work. In the process of defrosting, puled the bonnet lever, which broke out of the catch of the handle. A quick removal of two bolts and a replacing of the cable had the bonnet open.
Took another hour to defrost the washers/pipes etc - useless design. Washer jet adjusters pushed themselves out under pressure.