Volkswagen Golf Service & Repair Manual: Checking compression
| Special tools and workshop equipment
required |
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| 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. |
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|
|
| – |
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:
Checking airbag securing parts after an accident
All damaged securing parts must always be renewed. It is not
permissible to bend the components back into shape or
»make them fit«
The following components must be checked after the relevant
airbag has been triggered.
...
An economic driving style
First read and observe the introductory information
and safety warnings Changing gear earlier
In principle, the highest gear is always the most economical gear. A rule of
thumb for most vehicles: at a speed of 30 km/h (18 mph) drive in 3rd gear, at 40
km/h (25 mph) in 4th gear and at 50 km/ ...
Removing and installing storage compartment in roof headliner
Removing
–
Switch off ignition.
–
Unclip cover -1- from storage
compartment in roof headliner -3-.
–
Remove front interior light -WX1--2-
→ Elec ...
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Removing and installing camshaft housing
Valve gear