Skoda Octavia III 2013 Workshop Manual page 283

– Insert connecting nipple - VAS 6551/5-1- in the feed line -1-
and secure using a clamp.
– Connect the hose line - VAS 6551/2- between connecting nip‐
ple - VAS 6551/5-1- and connection -A- of the pressure gauge
(Diesel) - VAS 6551- .
– Connect hose line - VAS 6551/5-2- between the connection
-B- of the pressure gauge (Diesel) - VAS 6551- and the high
pressure pump -2-.
– Secure hose line - VAS 6551/5-2- to the high pressure pump
-2- using a clamp.
– Switch on the pressure gauge - VAS 6551- by pressing the
button .
On/Off
– Open shut-off taps -A- and -B- of the pressure gauge - VAS
6551- -1-.
– Make sure that the shut-off tap -C- is closed at the pressure
gauge - VAS 6551- -1-.
– Connect a
vehicle diagnosis tester
.
– Select Targeted Function
– Select function
check fuel pump conveying pressure/
.
quantity
– Follow the instructions of the vehicle diagnosis tester .
Note
The fuel pump is now activated.
– Read fuel pressure on pressure gauge - VAS 6551- .
• The specified value is at least 0.45 MPa (4.5 bar):
If the specified value is not reached
– Check fuel lines in the engine compartment for possible re‐
strictions (kinks) or blockages and damage.
– Check the fuel lines in the engine compartment for tightness.
If no fault is found
Check the fuel pressure before the fuel filter, to do so proceed as
follows.
Check the fuel pressure before the fuel filter
1.6/66; 77; 81; 2.0/105; 110; 135 kW TDI CR engine - Edition 07.2014
01 activate fuel pump
Octavia III 2013 ➤ , Octavia III 2014 ➤
.
2. Removing and installing parts of the fuel supply system
275