brake AUDI A4 1995 B5 / 1.G Engine Oil Level Checking Workshop Manual

13

Engine and engine compartment - visual
inspection


WARNING!

Repair any defects found.

- Visually inspect engine and engine compartment
for leaks and damage.

- Visually inspect lines, hoses, and connections of
fuel system, brake system, and cooling and
heating system for leaks, worn areas, porosity,
and deterioration.
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19

Diagnostic Trouble Code (DTC) Memory
interrogating, with VAG 1551 Scan Tool


Connecting Scan Tool (ST) VAG 1551- (up to
m.y. 1996)

- Move shift lever into position "P" or "N", and
apply parking brake (vehicles with Automatic
Transmissions).

- Open rear ashtray (center console) and remove Data Link Connector
(DLC) cover.

- With ignition turned OFF connect Scan Tool (ST) VAG 1551 to Data
Link Connector (DLC) with Adapter Harness VAG 1551/3.
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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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23

Plenum chamber and water drain valve,
checking for debris, cleaning if
necessary


- Check plenum chamber for signs of debris, e.g.
from leaves,clean If necessary.

- Check water drain valves for debris and proper
operation; clean or replace if necessary.

Note:
The water drain valves must not be blocked by
wax or undercoating, and must close properly.

Position of the water drain valves:
left - below brake servo unit
right - below battery
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39

Automatic Transmission Fluid (ATF),
checking (01V transmission)


Requirements for check:

Vehicle standing on level surface.
Transmission must not be in fail-safe mode.
Shift lever in "P" position, parking brake
applied.
Engine idling.
Air Conditioner and heater OFF.
ATF temperature must not exceed 40 C
(104 F) at start of test.

CAUTION!

Part numbers are for reference only. Always
check with your Parts Dept. for the latest
parts information.

Notes:

Only ATF with designation ESSO LT 71 141
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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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52

Brake system - visual inspection


WARNING!

Any defects found must be repaired.

- Inspect brake master cylinder, vacuum brake
booster, hydraulic unit, brake pressure regulator,
and brake calipers for leaks and damage.

- Brake hoses must not be twisted.

- Brake hoses must not make contact with any
part of vehicle when steering is at full lock.

- Inspect brake hoses for porosity and
deterioration, brake hoses and brake lines for
chafing.

- Inspect the brake connections and attachments
for correct seating, leaks and corrosion.
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53

Brake fluid level, checking


WARNING!

Use only new brake fluid confomning to US
Standard FMVSS 116 DOT 4. Genuine VW,
Audi brake fluid conforms to this
specification.
Brake fluid is poisonous. Do not ingest brake
fluid. Wash thoroughly with soap and water if
brake fluid comes into contact with the skin.

CAUTION!
Do not let brake fluid come into contact with
paint because of its caustic effect
Brake fluid absorbs moisture from
surrounding air and should always be stored
in airtight containers.

Delivery inspection:
Brake fluid level must be at max. marking at time
of delivery.

Note:
To avoid brake fluid over flowing do not exceed
the max. marking.
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54

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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55

Brake fluid, changing


WARNING!

Use only new brake fluid conforming to US
Standard FMVSS 116 DOT 4. Genuine VW,
Audi brake fluid conforms to this
specification.
Brake fluid is poisonous. Do not ingest brake
fluid. Wash thoroughly with soap and water if
brake fluid comes into contact with the skin.

CAUTION!
Do not let brake fluid come into contact with
paint because of its caustic effect
Brake fluid absorbs moisture from
surrounding air and should a/ways be stored
in airtight containers.
Do not allow brake fluid to come into contact
with fluids containing mineral oils or
gasoline cleaning products.
Mineral oils damage plugs and seals of the
brake system.
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