Volkswagen Golf Service & Repair Manual: Checking compression
| Special tools and workshop equipment
required |
|
|
|
| Spark plug socket and extension -3122 B- |
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|
|
| Compression tester -V.A.G 1763- |
| Engine oil temperature at least 30 °C. |
| Battery voltage at least 12.5 V |
| – |
Remove fuse for fuel pump control unit from fuse holder.
Fuse assignment → Current
flow diagrams, Electrical fault finding and Fitting locations |
 Note
| Removing fuse interrupts voltage supply for fuel pump
control unit. |
| – |
Start engine and run it until it turns off. |
|
|
|
| – |
Release hose clips -1- and
-2-, and remove air pipe. |
|
|
|
| – |
Pull off connector -2- and
unscrew bolt -1-. |
| – |
Pull out ignition coils with output stages. |
| – |
Unscrew spark plugs using spark plug socket and extension
-3122 B-. |
| – |
Check compression using compression tester -V.A.G 1763-.
Refer to
→ operating manual for information on how to use it. |
| – |
Have a second mechanic press down accelerator completely and
simultaneously operate starter until pressure no longer
increases on tester display. |
| – |
Repeat procedure on each cylinder. |
|
|
|
| Compression pressures |
bar |
| New |
10.0 … 15.0 |
| Wear limit |
7.0 |
| Maximum difference between
cylinders |
3.0 |
| Installation is carried out in the reverse order; note the
following: |
| – |
Install ignition coils with output stages
→ Chapter. |
| – |
Entries are stored in the event memory of the engine control
unit because electrical connectors were disconnected and the
engine was started: Generate readiness code
in Guided functions
→ Vehicle diagnostic tester. |
| → Chapter „Assembly overview - ignition system“ |
|
|
|
Removing
–
Remove coolant pump
→ Chapter.
–
Remove air filter housing
→&nbs ...
Other materials:
Introduction
This chapter contains information on the following subjects:
→ An economic driving style
→ Driving in a fuel-efficient manner
Fuel consumption, environmental impact and wear on the engine, brakes and tyres
depend largely on three factors:
Personal driving style.
...
General
Perform a road test to determine whether a vehicle is
pulling to one side and if so, which side. If the vehicle pulls
to one side
→ Chapter.
When wheel alignment is checked, include the wheel alignment
test results in ty ...
Removing and installing tyre pressure sensor, metal valve body
Special tools and workshop equipment
required
Torque wrench -V.A.G 1410- and 11 mm insert
tool-V.A.G 1331-.
–
Push metal valve with rubber seal t ...
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Removing and installing camshaft housing
Valve gear