Emptying fuel tank, front-wheel drive, engine codes CAYD, CAYE, CFHC, CFHE, CFHF, CLCA, CLCB, CFJA — VW

Emptying fuel tank, front-wheel drive, engine codes CAYD, CAYE, CFHC, CFHE, CFHF, CLCA, CLCB, CFJA
Emptying fuel tank when fuel pump is intact
Anchor
.
Emptying fuel tank if it is more than
3
/
4
full
Anchor
.
Emptying fuel tank if it is less than
3
/
4
full
Anchor
.
Emptying fuel tank when fuel pump is intact
Special tools and workshop equipment required
Fuel extractor
VAS 5190
Adapter for fuel extraction
VAS 5190/3
Vehicle diagnosis, testing and information system
VAS 5051B
Note
If the
fuel extraction unit
VAS 5190
is still fitted with the extraction hose with a solid tip, the extraction hose must be replaced with the version with a screwed tip.
Unscrew tip
1
from extraction hose of fuel extraction unit
VAS 5190
.
Screw
fuel extraction adapter
VAS 5190 /2
from
fuel extraction adapter set
VAS 5190 /10
onto extraction hose.
Carry out the following work:
Observe safety precautions
Chapter
.
Observe rules for cleanliness
Chapter
.
WARNING
Danger of burning from very hot fuel!
In extreme cases the fuel lines and the fuel can reach a temperature of 100 °C. Allow the fuel to cool down before disconnecting the lines - danger of scalding.
Wear protective gloves.
Wear eye protection.
Risk of injury due to highly-pressurised fuel!
To release pressure in fuel system, place clean cloth around connection and carefully undo connection.
Remove fuel supply line
2
. To detach fuel supply line
2
, push quick-release coupling downwards and, when doing this, also push release mechanism downwards. Then pull off quick-release coupling with engaged release mechanism upwards. Collect escaping fuel with a cleaning cloth.
Connect
fuel extractor
VAS 5190
with
adapter for fuel extractor
VAS 5190 /3
to fuel supply line.
Remove cap from fuel filler neck.
Switch ignition on.
Connect
vehicle diagnosis, testing and information system
VAS 5051B
or
vehicle diagnosis, testing and information system
VAS 5052 A
Carry out in the guided function
“Empty fuel system”
.
Note
The fuel pumps are now actuated. The
vehicle diagnosis tester
shows the progress of the drainage.
Open shut-off tap on
fuel extractor
VAS 5190
until fuel tank is emptied.
When the fuel tank is empty, stop the function to prevent the fuel pump from running
»dry«
.
Emptying fuel tank if it is more than
3
/
4
Special tools and workshop equipment required
Fuel extractor
VAS 5190
Observe safety precautions
Chapter
.
Observe rules for cleanliness
Chapter
.
Caution
Secure earth wire of
fuel extractor
VAS 5190
to a bare metal part of the body.
Remove cone piece
2
from shaft
1
of
fuel extractor
VAS 5190
.
Make a mark
arrow
on hose with insulating tape at distance
a
= 1700 mm from end of extraction hose.
Open tank flap.
Remove cap from fuel filler neck.
Note
A ball valve
2
is located at the bottom of the filler neck in the fuel tank
1
; it must not be damaged by the extraction hose
3
. Therefore push hose into filler neck only as far as marking
arrow
.
Screw shaft
1
of
fuel extractor
VAS 5190
onto fuel tank filler neck.
Push extraction hose into fuel tank until marking on hose
arrow
coincides with shaft end.
Drain fuel tank as far as possible.
Pull extraction hose out carefully.
Note
When no more fuel is extracted, the tank is emptied just enough for the sender flange to be opened without danger.
If fuel tank has to be drained fully, proceed as follows.
Emptying fuel tank if it is less than
3
/
4
full
Special tools and workshop equipment required
Union nut tool
3217
Torque wrench (40…200 Nm)
V.A.G 1332
Fuel extractor
VAS 5190
Adapter for fuel extraction
VAS 5190/3
Observe safety precautions
Chapter
.
Observe rules for cleanliness
Chapter
.
Remove fuel tank
Chapter
.
WARNING
Before loosening hose connections, wrap a cloth around the connection.
Release connector
1
and pull it off flange.
Remove fuel lines
2
and
3
. To do this, press release button.
On vehicles with supplementary heater, open clamp
arrow
and disconnect fuel line.
Unscrew union nut with
union nut tool
3217
.
Raise sender flange.
Insert suction hose of
fuel extractor
VAS 5190
as far as possible into fuel tank. Extract fuel.
If fuel tank only needs to be drained, install sender flange again.