About Recognising common defects: from steering to tyre: which statement is WRONG?
Unevenly worn tyres and a vibrating steering wheel point to bent or shifted suspension components (tracking), for example after hitting a kerb hard — not primarily to pressure.
The green valve cap is simply how you recognise nitrogen filling; nitrogen is a choice with benefits (holds pressure longer, lower consumption, shorter braking distance), not a legal requirement.
'If your brakes feel 'spongy' there is probably something wrong with your brake cylinder. Have your car checked as soon as possible.' This is not ordinary wear but a defect requiring immediate action.
If a lighting or indicator bulb is broken, a warning automatically appears on the dashboard.
Explanation
Book p.224 - 'You cannot rely on a defective bulb being indicated by a dashboard warning.' Daily checking before departure remains necessary.