Brake lining/brake shoe: check its thickness, if necessary, replace.
Brake disc/brake drum: check if it works normally and check it for damage, if necessary, replace.
Protective layer at bottom of body: visually observe for damage
Seat belt: check it for damage
Toe-in and camber angle: check, if necessary, adjust.
Ball pin: check clearance
Rubber hinge of rear axle: check it for damage
Wheel direction joint/front wheel bearing: check connection for looseness and abnormal noise
Bolt of engine oil pan: check it for looseness, if necessary, tighten.
Rubber sleeve of control arm: check it for damage
Brake hose: check it for aging and damage
Brake hard tube: check it for damage and corrosion and check all joints for leak.
Suspension module: check it for abnormal looseness or friction and damage and check if it works
normally.