Volkswagen Golf / Golf GTI / Jetta. Manual — part 57

17-21

Note:

Observe installation position of
adapter: The tapered connecting
socket of the adapter is screwed to
the pressure hose of the tester.

If the LED lights up:

If the LED does not light up:

- Remove Oil pressure switch -F1-

and screw into tester.

- Screw tester VAG 1342 with

adapter VAG 1342/14 into oil filter
bracket instead of oil pressure
switch.

- Connect brown wire of tester to

Ground (-).

- Connect diode test lamp VAG

1527 B to battery positive (+) and
oil pressure switch using adapter
cables from VAG 1594 A.

LED must not light up.

- Replace Oil pressure switch -F1-

Page 17-9

, item - 2 -.

- Start engine and run at idling

speed. At 1.2...1.6 bar LED must
light up; otherwise replace Oil
pressure switch -F1-

Page 17-

9

, item - 2 -.

Lubrication system components, servicing

17-22

Checking oil pressure

- Check oil pressure at different revolutions:

2,000 rpm: 3.0...5.5 bar

above 2,000 rpm: maximum 7.0 bar.

If the specifications are not attained:

- Repair mechanical damage, e.g. bearing

damage.

At higher engine speeds oil pressure must not

exceed 7.0 bar.

If the specification is exceeded:

- Check oil galleries.

- Replace oil pump if necessary

Page 17-12

,

Disassembling and assembling oil pump.

Lubrication system components, servicing

19-1

Cooling system components,
servicing

CAUTION!

When performing repair work, especially due
to the confined conditions in the engine
compartment, pay attention to the following:

Route all types of lines (e.g. for fuel,
hydraulics, EVAP system, coolant,
refrigerant, brake fluid and vacuum) as well
as electrical wiring so that the original
positions are restored.

Make sure sufficient clearance to all moving
or hot components.

Note:

When the engine is warm the cooling system is

under pressure. If necessary release pressure
before commencing repair work.

Hoses are secured with spring-type clips. In

cases of repair only use spring-type clips.

Assembly tool VAS 5024 or hose clip pliers

VAG 1921 are recommended for installing
spring-type clips.

When installing coolant hoses route stress

so that they do not come into contact with other
components (observe markings on coolant
connection and hose).

Cooling system components, servicing

19-2

Perform cooling system leakage test with

cooling system tester VAG 1274 and
adapters VAG 1274/8 and VAG 1274/9.

Parts of cooling system, body side

Page

19-3

.

Parts of cooling system, engine side

Page 19-6

.

Coolant hose connection diagram

Page

19-11

Disassembling and assembling coolant

thermostat housing

Page

Page 19-

13

.

Draining and filling coolant

Page 19-15

.

Coolant mixing ratios

Page 19-15

,

Draining and filling coolant.

Cooling system components, servicing