Page 5 of 74
17-5
 
  
19 - 
Oil temperature sender (-G8-), tightening 
torque 10 Nm 
For oil temperature gaugeWhiteIf seal is leaking, cut open with pliers and 
replace. 
20 - 
Oil seal Replacing  Page 15
-10
21 - 
Tensioner 
Secure in position before removing   Fig. 
 1
 
22 - 
Bolt, tightening torque: 10 Nm 
Apply locking fluid D6 when installing
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        Page 71 of 74
17-65
      
Oil pressure and oil pressure switch, 
checking
 
     
Note:  
     Servicing and checking function of oil pressure 
warning lamp and buzzer: 
     
       Electrical Wiring Diagrams, Troubleshooting & 
Component Locations   
     
Test procedure  
    
-  Remove oil pressure switch (F1) and screw oil pressure switch into 
tester. 
-  Screw tester into oil pan in place of oil pressure switch. 
-  Connect brown wire of tester to ground (GND) (-).
-  Using test leads from VAG 1594, connect diode test lamp VAG 1527 
between positive battery terminal (+) and oil pressure switch. 
-  Start engine and gradually increase engine speed.
   LED should light up at 1.2...1.6 bar, otherwise replace oil pressure 
switch. 
-  Increase engine speed further.
  
At 2000 RPM and an oil temperature of 80 C oil pressure should be at 
least 2.0 bar. 
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        Page 73 of 74
17-67
      
Oil level, checking
 
     
Test conditions  
     
Oil temperature above 60 C. 
     
Vehicle level. 
     The vehicle must be standing on level 
ground when checking the oil level. Wait for 
a few minutes after switching off the engine 
to allow the oil to flow back into the oil pan. 
     
Test sequence  
     
-  Pull out dipstick, wipe off with a clean cloth and 
insert it again as far as it will go. 
     
-  Pull out dipstick again and read oil level.
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