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Lubrication -> 1.5 Checking oil pressure and oil pressure switch for Your Volkswagen Touareg SUV First Generation (2002-2010)

Touareg 2003 ➤  
8-cylinder injection engine - Edition 11.2011  
1.5  
Checking oil pressure and oil pressure switch  
lk  
Special tools and workshop  
equipment required  
♦ Oil pressure tester -V.A.G  
1342-  
♦ Adapter -V.A.G 1342/14-  
♦ Voltage tester -V.A.G  
1527B-  
♦ Auxiliary measuring set -  
V.A.G 1594C-  
Test prerequisites  
Engine oil level OK.  
Oil pressure warning lamp -K3- must light up for approx. 3  
seconds when ignition is switched on  
Engine oil temperature at least 80 °C (radiator fan must have  
run once)  
Checking oil pressure  
– Check oil pressure at different revolutions: 2000 rpm: 3.0…5.5  
bar, above 2000 rpm: maximal 7.0 bar.  
If the specifications are not obtained  
– Rectify mechanical damage, e.g. bearing damage.  
At higher engine speeds, the oil pressure must not exceed 7.0  
bar.  
If the specification is exceeded:  
– Renew oil pump, if necessary ⇒ page 71 .  
1. Removing and installing parts of lubrication system  
75  
Touareg 2003 ➤  
8-cylinder injection engine - Edition 11.2011  
lk  
Checking oil pressure switch  
– Remove oil pressure switch -F1- and screw into tester.  
– Screw oil pressure tester -V.A.G 1342- with adapter -  
V.A.G 1342/14- into oil filter housing in place of oil pressure  
switch. ⇒ Item 16 (page 69) .  
Note  
Observe installation position of adapter: the conical connecting  
piece of adapter must be screwed into pressure hose of tester.  
– Connect brown wire of tester to earth (-).  
– Connect voltage tester -V.A.G 1527B- using test cables from  
-V.A.G 1594 C- to battery positive (+) and oil pressure switch.  
LED must not light up.  
If the LED lights up:  
– Renew oil pressure switch -F1- .  
If LED does not light up:  
– Start engine and run at idling speed. At 1.2…1.6 bar the LED  
must light up, otherwise renew oil pressure switch -F1- .  
76  
Rep. gr.17 - Lubrication