Test Conditions
WARNING: This page is about a different car, the 2015 Volkswagen Beetle, 2014 Volkswagen Beetle, and 2013 Volkswagen Beetle. However, it is still accessible from the selected car via links, so may be relevant.
- Connect the battery charger. The voltage must be minimum 12.5 V. Refer to REMOVAL AND INSTALLATION .
- Fuses OK; refer to appropriate Wiring Diagram.
- Fuel Pump Control Module -J538- is OK, refer to Vehicle Diagnostic Tester.
- The fuel filter is OK.
- Make sure the vehicle is level.
- Fuel tank minimum 1 /2 full.
- All electrical consumers such as, for example, headlamps and rear window defogger, must be off.
NOTE:
The vehicle must be fueled with diesel fuel treated for the season. Under some conditions, summer diesel fuel can coagulate at low winter temperatures.
Diesel fuel bought in the summer can be filtered to 0°C (32°F).
Diesel fuel sold during the transition time can be filtered to -10°C (14°F).
Diesel fuel bought in the winter can be filtered to -20°C (-4°F).
Test a sample in the winter if there is doubt.
The sample should set outside at low outside air temperature for approximately 1 hour.
If the fuel coagulates at temperatures down to -20°C (-4°F), then this diesel fuel is not suited for low temperatures. This coagulation can plug the screen in the fuel delivery unit as well as in the fuel filter.