oil pressure AUDI A4 2000 B5 / 1.G AFC Engine Lock Carrier Removing For Service Workshop Manual

- Disconnect harness connector at oil pressure sensor and at oil
pressure switch.
- Disconnect harness connector at the Camshaft Position (CMP) sensor
housing.
- Disconnect vacuum pipe at intake manifold changeover valve (blue)
and also at EGR valve (brown).
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15-18

Compression pressure, checking


Engine warm-oil temperature at least 30 C
(86 F)

Throttle valve fully open during cranking

- Disconnect harness connectors from ignition coil
power output stage and from all six fuel
injectors.

- Use compression pressure recorder VAG 1381
together with adapter 1381/5 or equivalent to
measure compression.

Note:
Refer to operating instructions for use of the
recorder.

- Operate starter until tester shows no additional
increase in pressure.

Compression pressures
New: 9-14 bar (131-203 psi)
Wear limit: 7.5 bar (109 psi)
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15-24

Valve stem oil seals, replacing


Cylinder head installed

- Remove toothed camshaft drive belt page 13
-
11
.

- Remove camshafts and hydraulic lifters.

- Remove spark plugs.

- Rotate crankshaft by hand to set piston of
appropriate cylinder to Bottom Dead Center
(BDC).

- Thread VW 653/3 hose, US 1106 cylinder
leakdown tester or equivalent with seal into
spark plug hole by hand and apply a continuous
pressure of at least 6 bar (87psi).

Note:
Tight valve keepers can be loosened by tapping lightly on lever VW 541/1
with a hammer. - Install compressor tool 2036 and adjust to height of studs.
- Remove valve spring with valve spring tensioner VW 541/1 and thrust
pad VW 541/5 or equivalent.
Pa
ge 25 of 35 Lock carrier, removin
g for service
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p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE01.15.4