See also:

Brake booster
The brake booster uses engine manifold vacuum to assist braking force. Do not turn off the engine while driving because that will turn off the brake booster, resulting in poor braking power. The ...

Washing the underbody
Chemicals, salts and gravel used for deicing road surfaces are extremely corrosive, accelerating the corrosion of underbody components, such as the exhaust system, fuel and brake lines, brake cabl ...

If no steam is coming from the engine compartment
NOTE For details about how to check the coolant level or how to add coolant, refer to “Engine coolant” F11-17. 1. Keep the engine running at idling speed. 2. Open the hood to ventilate the engine ...