Automobile Engineering in ME
When the brake pedal free play is less than the specified value, then the

Brake drags
Antilock braking system malfunctions
Vapour locking occurs in the brake lines
Brake fades

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Automobile Engineering in ME
The basic purpose of a four wheel drive (4WD) system is that it

Ensures effective transmission of engine torque to all four wheels, even on slippery road surfaces
Ensures that effective braking can be performed, even on slippery surfaces
Eliminates the need of snow tyres, tyre chains, etc.
Delivers improved cornering on dry road surfaces

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