Volkswagen Golf / Golf GTI / Golf Variant. Manual — part 692
– Remove the connector -1- from the Oil Pressure Regulation
Valve - N428- . Unclip the cable and route downward so that
is not in the belt drive unit. With the connector removed the oil
pump only pumps in the higher pressure stage.
– Start the engine and check the oil pressure of the specified
RPMs.
• Oil pressure at idle: 0.85 to 4.0 bar (12.3 to 43 psi)
• Oil pressure at 2,000 RPM: 2.0 to 2.4 bar (29 to 34.8 psi)
• Oil pressure at 3,700 RPM: 3 to 4 bar (43 to 58 psi)
Assembling
– Install the oil pressure switch.
– Connect the connector -1- to the Oil Pressure Regulation
Valve - N428- . Carefully route the cable.
– Install the noise insulation. Refer to ⇒ Body Exterior; Rep. Gr.
66 ; Noise Insulation; Overview - Noise Insulation .
– Check the engine control module Diagnostic Trouble Code
(DTC) memory and erase any entries.
Tightening Specifications
♦ Refer to
⇒ “4.2 Overview - Oil Pressure Switch/Oil Pressure Regulator
.
4.6.2
Piston Spray Nozzles Oil Pressure,
Checking
Special tools and workshop equipment required
♦ Oil Pressure Gauge Kit - VAG1342-
♦ Socket and Jointed Extension - 24mm - T40175-
Test Prerequisites
• Oil level OK
• The engine oil temperature at least 80 °C (176 °F) (the coolant
fan must start up once).
Test Sequence
– Remove the Oil Pressure Switch, Level 3 - F447- . Refer to
⇒ “4.5 Oil Pressure Switch, Level 3 F447 , Removing and
.
– Install the Oil Pressure Gauge Kit - VAG1342- in place of the
oil pressure switch.
Note
Risk of damaging the oil pressure tester. The hose from the oil
pressure tester must not come in contact with the coolant pump
toothed belt sprocket.
– The threaded hole in the Oil Pressure Gauge Kit - VAG1342-
must be closed. If necessary install the Oil Pressure Switch,
Level 3 - F447- .
– Remove the connector -arrow- from the Piston Cooling Nozzle
Control Valve - N522- . With the connector removed the oil
filler hole to the piston cooling is opened.
– Place the air guide pipe back on the hose connections, so that
the engine can be started.
– Start the engine and check the oil pressure.
• Oil pressure at idle: minimum 0.60 bar (8.7 psi).
Assembling
– Install the oil pressure switch.
Tightening Specifications
♦ Refer to
⇒ “4.2 Overview - Oil Pressure Switch/Oil Pressure Regulator
4.7
Piston Cooling Nozzle Control Valve -
N522- , Removing and Installing
Removing
Caution
This procedure contains mandatory replaceable parts. Refer
to component overview prior to starting procedure.
Mandatory Replacement Parts
♦ Bolt - Piston Cooling Nozzle Control Valve
♦ O-rings - Piston Cooling Nozzle Control Valve
Note
Place a cloth under the accessory assembly bracket to collect
leaking engine oil.
– Disconnect the connector -arrow- from the Piston Cooling
Nozzle Control Valve - N522- .
– Remove the bolt -1- and remove the Piston Cooling Nozzle
Control Valve - N522- -2-.
Installing
Install in reverse order of removal. Note the following:
Note
♦
Replace the O-rings.
♦
To prevent oil loss insert the Piston Cooling Nozzle Control
Valve - N522- immediately in the opening.
– Check the oil level. Refer to ⇒ Maintenance ; Booklet 36.1 ;
Procedure Descriptions; Engine Oil Level, Checking .
Tightening Specifications
♦ Refer to
⇒ “4.2 Overview - Oil Pressure Switch/Oil Pressure Regulator
4.8
Oil Pressure Regulation Valve - N428- ,
Removing and Installing
Special tools and workshop equipment required
♦ Used Oil Collection and Extraction Unit - SMN372500-
Caution
This procedure contains mandatory replaceable parts. Refer
to component overview prior to starting procedure.
Mandatory Replacement Parts
♦ O-ring - Oil Pressure Regulation Valve
♦ Bolt - Oil Pressure Regulation Valve
Removing
– Remove the noise insulation. Refer to ⇒ Body Exterior; Rep.
Gr. 66 ; Noise Insulation; Overview - Noise Insulation .
– Remove the ribbed belt. Refer to
⇒ “1.2 Ribbed Belt, Removing and Installing”, page 46
.
– Place the Used Oil Collection and Extraction Unit -
SMN372500- under the engine.
– Disconnect the connector -1-.
– Remove the bolt -2- and the Oil Pressure Regulation Valve -
N428- .
Installing
Install in reverse order of removal. Note the following:
Note
Replace the O-ring after removing.
Tightening Specifications
♦ Refer to
⇒ “4.2 Overview - Oil Pressure Switch/Oil Pressure Regulator
♦ Refer to ⇒ Body Exterior; Rep. Gr. 66 ; Noise Insulation;
Overview - Noise Insulation .
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