Sequence of operations
CAUTION
The fuel system is pressurised.
Risk of injury caused by fuel spray.
– Wear safety goggles.
– Wear protective gloves.
– To release pressure, wrap a clean cloth around the connec‐
tion, and carefully loosen the connection.
– Remove clamp -2-.
– Pull off fuel line -1-.
– Guide fuel line -1- into measuring beaker - V.A.G 1602/1- .
– Hold measuring beaker - V.A.G 1602/1- at same height as
auxiliary air heater.
– Using ⇒ Vehicle diagnostic tester, check fuel delivery rate of
metering pump 2 - V386- .
Note
If the fuel is delivered evenly (beginning approx. 60 seconds after
engine has been started), the fuel line is properly filled and ven‐
ted.
– Empty fuel from measuring beaker - V.A.G 1602/1- .
– Guide fuel line -1- into measuring beaker - V.A.G 1602/1- .
– Hold measuring beaker - V.A.G 1602/1- at height of glow plug
for heater - Q9- .
– Using ⇒ Vehicle diagnostic tester, check fuel delivery rate of
metering pump 2 - V386- .
– Read quantity of fuel in measuring beaker - V.A.G 1602/1- .
Min. quantity of fuel after 90 seconds, ml
Max. quantity of fuel after 90 seconds, ml
18
22
– If fuel delivery rates are not within specifications, renew me‐
tering pump 2 - V386-
Transporter 2020 ➤
Auxiliary heater - Edition 04.2020
8. Fuel supply to auxiliary air heater
53
