Volkswagen Golf Owners Manual: Things to note for diesel vehicles
Fig. 189 Tank flap open: misfuelling prevention device in the fuel filler
First read and observe the introductory information
and safety warnings The fuel filler in diesel vehicles can be fitted with a misfuelling prevention device  . The misfuelling prevention device ensures that the vehicle can only be fuelled using suitable diesel pump nozzles  .
A fuel nozzle that is worn, damaged or not of the correct specification will not open the misfuelling prevention device.
If the diesel pump nozzle cannot be inserted correctly into the fuel filler, turn the nozzle back and forth while applying light pressure. This can open the misfuelling prevention device and make it possible to refuel the vehicle. If the misfuelling prevention device remains closed, proceed to a qualified workshop to have the system checked.
If it is necessary to refuel the vehicle using a spare fuel canister in the event of an emergency, the misfuelling prevention device will not open. In order to fill the tank with fuel, pour the diesel into the tank extremely slowly in very small quantities.
Filling the tank with petrol, diesel or E85
Fig. 188 Open tank flap with tank cap attached
to the holder
First read and observe the introductory information
and safety warnings Switch off the engine, ignition, mobile telephone and
aux ...
Capacities
First read and observe the introductory information
and safety warnings 
Fuel tank capacity
Petrol and diesel engines with front-wheel drive
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Other materials:
Undercoating, additional protected areas on hybrid vehicles
Undercoating, rear body of hybrid vehicles
a -
Undercoating
Coat thickness: 0.3 mm
b -
Undercoating
Coat thickness: 0.5 mm
...
Removing and installing fuel delivery unit/fuel gauge sender, vehicles with
four-wheel drive
Special tools and workshop equipment
required
Special wrench -T10202-
Removal wedge -3409-
Removing
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Removing and installing mounting bracket, LHD vehicles
Remove dash panel end cover on driver side
→ General body repairs, interior; Rep. gr.70.
–
Remove footwell cover on driver side
→ General body repairs, interior; Rep. gr.68.
â ...