200 Quattro Wagon L5-2226cc 2.22L SOHC Turbo (MC) (1989)
Brake Pressure Regulator: Service and Repair
Checking
Brake Pressure Regulator, Checking
Work sequence
NOTE: Brake pressure regulator is mounted on body (left rear) and is operated by a spring attached to the left side of rear axle arm.
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push brake pedal once firmly (car must be on ground)
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release pedal suddenly and check that lever (arrow) on pressure regulator moves
NOTE: Brake system must be filled with fluid and free of air (properly bled)
CAUTION: Do not adjust pressure regulator with brake pedal depressed
Work sequence
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remove bleeder screws from rear brake calipers
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connect gauge
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bleed both hoses and gauges with bleeder valve on gauges
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have person (approximately 165 lbs) sit on driver's seat
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apply parking brake