Brake booster control valve
The valve should only allow air to pass through when blowing from the brake booster side.
Periodically check the condition and reliability of the hoses and metal brake tubes. Hoses and tubes must be kept at least 13 mm away from moving parts. When replacing tubes or hoses, tighten the fittings to a torque of 13–17 N·m.
The valve should only allow air to pass through when blowing from the brake booster side.