Passat 2011 ➤ , Passat Variant 2011 ➤
Maintenance - Edition 01.2019
4.27.3
Mixing ratio:
Caution
Use only distilled water for mixing coolant additives. The use
of distilled water ensures optimum protection against corro‐
sion.
Frost protection to
Coolant additive
portion
Distilled water
-25 °C
-36 °C
approx. 40%
approx. 50 %
approx. 60 %
approx. 50 %
4.28
Diesel fuel filter: renewing
Special tools and workshop equipment required
♦ Diesel extractor - VAS 5226-
♦ Angled screwdriver - VAS 6543-
Removing:
Caution
♦ Ensure that no diesel fuel contacts other components in
the engine compartment. Clean immediately, if necessa‐
ry.
Remove engine cover panel ⇒ page 106 .
4. Descriptions of work:
97
Passat 2011 ➤ , Passat Variant 2011 ➤
Maintenance - Edition 01.2019
Note
♦ Please observe disposal instructions!
♦ After the diesel fuel filter has been changed, the fuel system
must be bled.
Carry out following procedure:
– Remove bolts in the sequence shown.
– Remove upper part of diesel fuel filter -1- together with con‐
nected fuel hoses.
– Remove diesel fuel filter element -4- from lower part of fuel
filter.
Note
Please observe disposal instructions!
Caution
Remove all diesel, dirt and water residues from fuel filter lower
part using diesel extractor - VAS 5226- .
Installing:
Caution
The seals -2- and -3- and diesel fuel filter element -4- must be
renewed.
Always moisten new seal -2- slightly with diesel fuel to avoid
malfunctions!
98
4. Descriptions of work:
Passat 2011 ➤ , Passat Variant 2011 ➤
Maintenance - Edition 01.2019
– Insert new diesel fuel filter element -4- in diesel fuel filter lower
part and turn slightly to limit stop.
– Fit upper part of diesel fuel filter -1- and seal on lower part of
fuel filter and then screw in bolts approx. one turn.
Caution
Ensure correct installation position of diesel fuel filter upper
part to corresponding lower part.
– Tighten bolts in the sequence shown.
– Tighten bolts to 5 Nm torque.
Bleeding fuel system
•
There must be sufficient fuel in the tank.
– Activate fuel pump ⇒ Vehicle diagnostic tester.
– After the fuel system has been bled, start engine.
– Allow engine to run for several minutes at mid revs, then switch
engine off again.
– Read event memory and erase if necessary.
– Carry out a leakage test of the fuel system.
Note
If there is still air in the fuel system, the engine can change to
emergency running mode during road test. In this case, switch
engine off and erase fault memory. Then continue with a road test.
4.29
Air filter: cleaning housing and renewing
filter element
Removing and installing air filter element, 6-cylinder FSI petrol
engines ⇒ page 100
Removing and installing air filter element, diesel engines, 1.4 l,
1.8 l and 2.0 l TSI engines ⇒ page 100
Special tools and workshop equipment required
♦ Torque screwdriver - VAS 6494-
4. Descriptions of work:
99
2024 VW Passat Owner's Manual
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