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Alfa Romeo 147 Factory Service Manual (2000-2004)22 · Fault diagnosis

22 · Diagnostics

Brake fluid leaks

Make: Alfa Romeo
Model: 147 Factory Service Manual
Year: 2000–2004
Section: Consumption /leaks/ wear › Brake fluid leaks

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Fault diagnosisBrake fluid leaks

BRAKE FLUID LEAKS

1.6 TS, 2.0 TS

A brake fluid leak is seen.

0	PRELIMINARY CHECKS	All OK	Problems met	Operation
		Results of the tests
	Check whether the fault is accompanied by decreased braking efficiency Visually inspect the brake fluid level in the reservoir Op. 3330A12	Continue to Step 1	Decreased braking efficiency	See table F01 POOR BRAKING ACTION
		Continue to Step 1	Level too low	Restore the correct level and road test the vehicle. If the fault persists, Continue to Step 1
1	RESERVOIR LEAKAGE TEST	All OK	Problems met	Operation
	Visually check that there are no leaks from the reservoir and the pipes	Continue to Step 2	Leaks from the reservoir	Replace the reservoir Op. 3330C30
2	PUMP LEAKAGE TEST	All OK	Problems met	Operation
	Visually check that there are no leaks of fluid from the brake pump and connectors	Continue to Step 3	Leaks from the connectors in the area of the pump / ABS control unit	Tighten the connectors or replace the damaged parts
		Continue to Step 3	Leaks from the connectors in the area of the pump / ABS control unit	Replace the brake servo assembly Op. 3330D02
3	CHECK HOSES	All OK	Problems met	Operation
	Visually inspect that there are no leaks from the flexible pipes	Continue to Step 4	Leaks from the connectors or flexible pipe to the front brakes deteriorated	Tighten the connectors or replace the pipe Op. 3330E10
		Continue to Step 4	Leaks from the connectors or flexible pipe to front brakes deteriorated	Tighten the connectors or replace the pipe Op. 3330E30
4	RIGID PIPES CHECK	All OK	Problems met	Operation
	Visually inspect that there are no leaks from the underbody rigid pipes	Continue to Step 5	Leaks from the connectors or rigid pipes damaged	Tighten the connectors or replace the rigid pipes
5	CORRECT OPERATION CHECK	All OK	Problems met	Operation
	Check that the fault is no longer present		Fault persists	Search for the fault starting from another symptom'

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Parts & tools for this job For 2000 Alfa Romeo 147

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