1997 AUDI A4 Engine Oil Level Checking Workshop Manual

-35 (-31)
-40 (-40 )

- After road test, check coolant concentration.

- Check coolant level.
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Delivery inspection:
At delivery inspection coolant level must be at
max. mark on expansion tank (engine cold).

Inspection service:
Coolant level between min. and max. markings.
With engine cold, coolant level must be between
min. and max. markings of reservoir; with engine
warm, level may be slightly above max. marking.
If coolant level is too low but antifreeze protection
is adequate, add required amount of mixture.
If coolant level is too low but antifreeze protection
adequate, add missing quantity according to
following mixing ratios:

Antifreeze
protection down to Coolant
additive Water
-25 C (-13 F)
approx. 40 % approx. 60
%
-35 C (-31 F) approx. 50 % approx. 50
%
-40 C (-40 F) approx. 50 % approx. 50
%
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Dust and pollen filter element, replacing


- Remove right scuttle panel.

Notes:
Be sure dust and pollen filter housing gasket -C- is positioned correctly
and undamaged.
Rain channel -A- must be properly installed to prevent water from running
onto dust and pollen filter and into heating system. - Remove rain channel -A-.
- Remove filter element -B- from housing.
- Install new filter element.
- Install gasket-C-, rain channel -A-, and right scuttle panel.
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18

Noise insulation, removing and
installing


Note:
When installing noise insulation, be sure that it is inserted at front, over
bumper cover. - Pull insulation pan to rear, off bumper cover and remove.
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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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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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X DTCs reco
gnized

If control module answers with its identification the number of stored
Diagnostic Trouble Codes (DTCs) will be indicated or "No DTCs
Recognized" will be displayed.
If one or more DTCs are stored, all stored DTCs will be dis played and
printed out in sequence. Following this, VAG 1551 displays the next
address word.
VAG On Board Dia
gnostic
HELP
1 - Rapid data transfer *
)
2 - Blink code output *
)

* Operating modes 1 and 2 are displayed alternately.
Corrective action must be taken if DTCs are stored. Diagnostic report
should be attached to repair order.
Note:
For resetting service internal display and performing any emissions test
VAG 1551 must remain connected. - Automatic test sequence is ended once the readout shown here
appears in the display.
- Turn ignition OFE
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22

Spark plugs, replacing


Note:
To replace spark plugs, use Spark Plug Wrench 3122B. - Remove engine cover.
- Install new spark plugs.

Tightening torque: 30 Nm (22 ft lb)
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