Volkswagen Fox 2004 Workshop Manual page 75

Test sequence
– Remove the Oil pressure switch -F1- and screw it to the test
equipment.
– Install test equipment in place of the oil pressure switch on the
oil filter support.
– Connect brown wire of tester to earth (-).
– Connect Test probe -VAG 1527B- , using Aux. measuring ca‐
ble set -VAG 1594C- , to battery positive (+) terminal and Oil
pressure switch -F1- .
– Start engine and increase speed slowly. In 0.55...0.85 bar, the
LED shall light OFF; otherwise, replace the Oil pressure
switch .
– Continue increasing speed. At 2000 rpm and an oil tempera‐
ture of 80°C, the oil pressure should be at least 2.0 bar.
At higher speeds, oil pressure may not exceed 5.8 bar. If neces‐
sary, replace the oil filter support.
3 - Cyl. diesel engine - Edition 02.2009
1. Lubrication system components - remove and install
Fox 2004 ➤
71