Volkswagen PASSAT 2013 Manual page 252

WARNING
Driving with a fuel tank that is almost empty can lead to stalling in traffic, a collision, and
serious personal injuries.
When the fuel tank is almost empty, fuel supply to the engine can be interrupted,
especially when driving over bumps, across slopes, and up and down hills.
Steering and braking assistance as well as ESC and related systems will not work if the
engine "sputters" or stalls due to lack of fuel.
Always refuel when the tank is 1/4 full to reduce the risk of running out of fuel and stalling
in traffic.
NOTICE
Failure to heed warning lights or text WARNINGS can result in vehicle damage.
Never drive until the fuel tank is completely empty. The irregular fuel supply can cause the
engine to misfire. This allows unburned fuel to get into the exhaust system and damage the
catalytic converter or the diesel particulate filter.
The small arrow next to the gas pump symbol in the fuel gauge shows the side of the vehicle with
the fuel filler flap.
Misfueling guard for diesel vehicles
Fig. 163 With open fuel cap: Misfueling guard in the fuel filler neck.
Please first read and note the introductory information and heed the WARNINGS
The fuel filler neck of diesel vehicles is equipped with a misfueling guard ⇒
guard helps prevent filling the fuel tank of a diesel vehicle with gasoline, because the guard makes it
difficult to insert any type of filler nozzle other than the type commonly used for diesel fuel.
Damaged, worn out, or incorrect nozzles, as well as other means of refueling (portable fuel containers,
for example) will generally not open the misfueling guard and fuel from these sources cannot easily
flow into the tank. Using these incorrect or non-standard nozzles to refuel your diesel vehicle can
cause fuel spills, which can cause fires, explosions, burns, and other severe injuries.
The misfueling guard can generally only be properly opened with a correct nozzle from a standard
diesel fuel pump. Under certain circumstances it may be necessary to turn the nozzle back and forth
.
f ig. 163. The misfueling