Volkswagen Golf Service & Repair Manual: Removing and installing suction-jet pump
| On vehicles with four-wheel drive the fuel tank is divided
into a left and a right chamber. A suction-jet pump
-2- is used for delivering fuel
from the left fuel tank chamber to the baffle housing of the
fuel delivery unit -1- on the
right. |
| Function of suction-jet pump |
| The suction-jet pump operates according to the principle of
fluid entrainment: the stream of fuel from the electrical fuel
pump is passed through a nozzle in the suction-jet pump, and is
thus accelerated. The accelerated stream of fuel draws off the
surrounding fuel and delivers it to the baffle housing of the
fuel delivery unit. |
| Faults caused by defective suction-jet pump |
 Note
| Risk of breakdown due to defective suction-jet pump. |
| If the suction-jet pump is defective, the engine can stop
due to fuel starvation when the tank is still
1/4
full. |
| If the suction-jet pump does not work, approx. 15 litres of
fuel (1/4
of tank capacity) remain in the left chamber of the fuel tank
and cannot be extracted by the fuel delivery unit. |
| If the engine stops due to fuel starvation with the tank
filled up to about 1/4,
proceed as follows: |
| – |
Check fuel pump with → Vehicle
diagnostic tester. |
| If fuel pump is OK, but no fuel is delivered: |
| – |
Refill fuel tank with approx. 5 litres of fuel. |
| – |
The suction-jet pump cannot be renewed individually. Renew
fuel tank
→ Chapter. |
|
|
|
Special tools and workshop equipment
required
Removal wedge -3409-
Procedure:
...
Other materials:
Assembly overview - bumper cover
Note
Minor differences may be encountered in respect of bumper cover,
depending on vehicle model.
1 -
Bumper cover
Material PP/EPDM
Removing and installing
→ Chapter
2 -
Guide bracket
Lef ...
Removing and installing front tunnel cross-piece
Special tools and workshop equipment
required
Torque wrench -V.A.G 1331-
Removing
–
If fitted, remove centre underbody panel
→ ...
Folding the front passenger seat backrest forwards
Fig. 55 Folding the front passenger seat
backrest forwards
Fig. 56 Unlatching the folding front passenger
seat backrest
First read and observe the introductory information
and safety warnings The front passenger seat backrest can be folded forwards
to a horizontal position.
The front ...
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Removing and installing fuel pump control unit -J538-