brake light AUDI A4 1999 B5 / 1.G Engine Oil Level Checking Workshop Manual

20

Connecting Scan Tool (ST) VAG 1551- (from
m.y. 1997)

DLC is located below driver's knee bar to left
side of steering wheel

Continuation for all vehicles
VAG 1551 displays all known address words in sequence. - Connect Scan Tool VAG 1551/1552 with diagnostic cable VAG 1551/3.
- Start engine and run at Closed Throttle Position.
- Press brake pedal briefly once.
- Press print button to switch printer on (indicator lamp in button lights
up).
- Press key -1- for "Rapid Data Transfer" mode.
- Press key -O- twice to enter address word 00 for "Automatic Test
Sequence".
- Press -Q- key to confirm input.
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51

Brake pad thickness, checking


Inspection service:

Dimension -a- = pad thickness including backing plate. Wear limit = 7 mm
(0.28 in.).
Thoroughly remove all dirt from wheels.
If pad thickness including backing plate is 7 mm (0.28 in.) or less the
brake pads have reached or exceeded wear limit and must be replaced. - Determine thickness of outer and inner pads by inspecting visually.
View through opening in wheel. Use a flashlight and mirror if necessary.
- Tighten wheel bolts to 110 Nm (81 ft lb).
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Inspection service:

- Always consider brake pad wear when checking
brake fluid level. When driving, a slight drop in
brake fluid level results from normal wear and
automatic adjustment of brake pads.

- If brake fluid level is at minimum marking or
slightly above, brake pads are close to wear
limit, it is not necessary to add fluid.

- If brake pads are new or well away from wear
limit, brake fluid level must be between min. and
max. markings.

- If brake fluid level has dropped below min.
marking, check brake system before adding
brake fluid.
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