Volkswagen Golf Service & Repair Manual: Checking valve timing, engine codes CHPA, CMBA, CPVA, CXSA, CZCA, CPVB, CZDA
| Special tools and workshop equipment
required |
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| – |
Loosen hose clips -1, 2- and
remove air pipe. |
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Move air hoses clear at air pipe. |
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Detach connector from charge pressure sender -GX26-. |
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Release fasteners -arrows-
using release tools -T10527- and -T10527/1-. |
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Press release tabs and disconnect hose
-1- for activated charcoal filter. |
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Remove bolts -arrows- and
detach crankcase breather hose. |
| – |
Remove noise insulation
→ General body repairs, exterior; Rep. gr.66. |
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Drain coolant
→ Chapter. |
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Unscrew bolts -A ... D-, and
push cover -1- for thermostat to
one side. |
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Lay wiring harness to one side
-arrows-. |
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Unscrew bolts -1, 3- and remove
cover -2- for toothed belt for
coolant pump. |
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| – |
Unscrew bolts -arrows- and
detach sealing cap -1-. |
| Rotate crankshaft to “TDC” as follows: |
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Remove ignition coil 1 with output stage -N70- and cylinder
1 spark plug
→ Chapter. |
| – |
Insert a screwdriver with a shaft length of at least 250 mm
into spark plug hole so that it contact piston crown. |
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Turn the crankshaft in the normal direction of rotation
until the piston in cylinder 1 shows “BDC”. |
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| The screwdriver moves in the
-direction of the arrow-. |
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Turn the crankshaft further, until the screwdriver has moved
-30 mm- in the
-direction of the arrows- |
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Unscrew plug for “TDC” hole in cylinder block. |
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Screw locking pin -T10340- into cylinder block as far as
stop and tighten to 30 Nm. |
| – |
Rotate crankshaft in normal direction of rotation as far as
stop. |
| The locking pin now rests against the crank web. |
 Note
| Locking pin -T10340- locks crankshaft in direction of engine
rotation only. |
| If locking pin -T10340- cannot be screwed in as far as stop,
this indicates that crankshaft is not in the correct position! |
| In this case, proceed as follows: |
| Turn crankshaft 90° in direction of engine rotation. |
| Screw locking pin -T10340- into cylinder block as far as
stop and tighten to 30 Nm. |
| Turn crankshaft in direction of engine rotation as far as
stop. |
| The asymmetrically positioned grooves on gearbox end of both
camshafts -arrows, upper figure-
must be above the horizontal centre line, as shown in figure. |
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| The grooves on the exhaust camshaft
-upper arrows- can be accessed through the recesses in
toothed belt pulley for coolant pump. |
| On the inlet camshaft the grooves
-lower arrows- must also be positioned right above
horizontal camshaft centre line. |
| – |
If camshafts are not positioned as described, unscrew
locking pin -T10340-, turn crankshaft one rotation further and
return to “TDC” position. |
Note
| The camshaft clamp -T10494- must slide into position easily. |
| Do not knock camshaft clamp into place with any kind of
tool. |
| If the camshaft clamp -T10494- does not easily slide into
position: |
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Use assembly tool -T10487- to push against toothed belt in
-direction of arrow-. |
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Insert camshaft clamp -T10494- as far as stop into camshaft. |
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Tighten bolt -arrow- by hand. |
| If camshaft clamp cannot be fitted: |
| – |
Adjust valve timing: removing toothed belt from camshafts
→ Chapter. |
| If camshaft clamp can be fitted: |
| After completing work, check that locking pin -T10340- and
camshaft clamp -T10494- have been removed. |
| Further assembly is carried out in the reverse order of
removal. |
Note
| Renew bolts that are tightened with specified tightening
angle. |
| Renew O-ring of plug if damaged. |
| → Chapter „Assembly overview - toothed belt“ |
| → Fig. „“Plug for TDC drilling in cylinder block - specified
torque”“ |
| → Chapter „Assembly overview - camshaft housing, engine codes
CHPA, CMBA, CPVA, CXSA, CZCA, CPVB, CZDA“ |
| → Chapter „Assembly overview - crankcase breather system“ |
| → Chapter „Assembly overview - coolant pump, thermostat“ |
| → Chapter „Assembly overview - charge air system“ |
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1 -
Toothed belt
Before removing, mark direction of rotation with chalk or
felt-tipped marker pen.
Check for wear
Remo ...
Special tools and workshop equipment required
Torque wrench -VAS 6583-
Counterhold -T10172- with adapter -T10172/1-
Locking pin -T10340- ...
Other materials:
Introduction
This chapter contains information on the following subjects:
→ Indicator lamps
→ Turn signal and main beam lever
→ Switching lights on and off
→ Lights and vision – functions
→ Main beam assist
→ Switching over headlights ...
Hydraulic system
General notes on brake fluid
Only use new brake fluid conforming to VW standard
(VW 501 14).
Note
Brake fluid is poisonous. Also due to its corrosive effect
brake fluid must not come into c ...
Assembly overview - activated charcoal filter system
1 -
Connecting hose
From air filter to pressure control valve
2 -
Hose clips
3 -
Pressure regulating valve
With tank pressure sensor -G400-
4 -
Bolts
...
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Assembly overview - toothed belt, engine codes CPTA, CHPA, CZEA, CZDA
Removing toothed belt from camshafts, engine code CHPA, CZDA