Skoda Octavia III 2013 Workshop Manual page 253

1.12.2 Testing holding pressure
Note
Safety precautions when working on the fuel supply system
♦
⇒ page 2 .
Rules of cleanliness when working on the fuel supply system
♦
⇒ page 9 .
Test conditions when working on the fuel supply system
♦
⇒ page 4 .
– Check leaktightness and while doing so observe pressure
drop at pressure gauge - VAS 6550- .
• The pressure must not drop below 0.3 MPa (3 bar) after 10
minutes.
If the pressure again falls below 0.3 MPa (3 bar):
• Check line connections between pressure gauge - VAS 6550-
and fuel feed line for leaktightness.
• Check pressure gauge - VAS 6550- for leaks.
• Check fuel lines and its connections for tightness.
If no fault is found:
♦ Non-return valve in the fuel delivery unit is leaking:
– Replace fuel delivery unit:
• Vehicles with front-wheel drive
• Vehicles with four-wheel drive
Assembly is carried out in the reverse order. When installing, ob‐
serve the following:
• Ignition must be switched off.
Note
Reduce fuel pressure before removing the pressure gauge, while
doing so open the shut-off tap -C- and let the fuel drain into the
measuring vessel.
1.8/132 kW TSI; 2.0/162 kW TSI engines - Edition 01.2015
⇒ page 233
⇒ page 236
Octavia III 2013 ➤ , Octavia III 2014 ➤
245
1. Fuel tank