1997 AUDI A4 spark plugs

15-41


Tightening torques - Seal end points of joints between bearing caps and cylinder head.
- Before installing cylinder head cover and gasket, carefully apply a
small quantity of sealant D 454 300 A2 at four end points of sealing
surfaces on cylinder head -arrows-, using a small screwdriver. Component

Nm
Bolts M6 10
Bolts M8 20
Camshaft bearing caps and camshaft adjuster 10
Exhaust manifold to cylinder head 25
Front exhaust pipe to exhaust manifold 25
Oxygen sensor 50
Spark plugs 25
Toothed belt sprocket to camshaft 55
Intake manifold to cylinder head 10
Cylinder head cover 10
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15-55


Tightening torques - Seal end points of joints between bearing caps and cylinder head.
- Before installing cylinder head cover and gasket, carefully apply a
small quantity of sealant D 454 300 A2 at four end points of sealing
surfaces on cylinder head -arrows-, using a small screwdriver. Component

Nm
Bolts M6 10
Bolts M8 20
Camshaft bearing caps and camshaft adjuster 10
Exhaust manifold to cylinder head 25
Front exhaust pipe to exhaust manifold 25
Oxygen sensor 50
Spark plugs 25
Toothed belt sprocket to camshaft 55
Intake manifold to cylinder head 10
Cylinder head cover 10
Pa
ge 55 of 99 Valve
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11/21/2002 htt
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pair&id=AUDI.B5.GE05.15.1

15-64

Installing
Install in reverse sequence; note the following
points.

- install fuse No. 28 (for fuel pump).

- Erase Diagnostic Trouble Code (DTC)
memory.

Note:
Malfunctions will have been stored in the
memory because the connector to the Hall
sensor has been unplugged. Therefore
interrogate and erase the DTC memory after the
test.

Tightening torque

Component
Nm
Ignition coils to cylinder head 10
Spark plugs in cylinder head 30
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15-90

Valve stem seals, replacing


Cylinder head installed

- Remove ribbed belt Page 13
-1 .

- Remove toothed belt Page 13
-4 .

- Remove camshafts Page 15
-75
.

- Remove lifters and put them down with the
contact surface downwards. Ensure that lifters
are not interchanged.

- Remove spark plugs.

- Set piston of relevant cylinder to bottom dead
center (BDC).

Note:
Tight cotters can be released by tapping lightly
on the valve lever with a hammer.
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11/21/2002 htt
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e=re
pair&id=AUDI.B5.GE05.15.1