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:
Checklist
Never carry out any work on the engine or in the engine compartment
if you are not familiar with the requisite procedures and general safety requirements,
or if you only have access to incorrect operating equipment, service fluids,
and unsuitable tools . The work should be carried ou ...
Removing and installing washer fluid reservoir
Note
The washer fluid reservoir (which is the same for the
windscreen and the rear window washer systems) is located in the
front left wheel housing.
–
Removing and installing washer fluid reservoir
→&nb ...
Overview of the driver door
Fig. 4 Overview of the controls in the
driver door (left-hand drive vehicles) The controls are mirrored for right-hand
drive vehicles
Key for :
Door release lever
Central locking buttons for locking
and unlocking the vehicle –
Switch for adjusting the exterior ...
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Removing and installing fuel pump control unit -J538-