2. Remove the left underbody trim.
Attention:
- Collect leaking fuel in a suitable container and send for disposal.
- Observe the applicable national disposal regulations.
3. Open the quick-release valve and disconnect the supply line.
4. Connect devices 135270 and 135222.
5. Connect the pressure sensor (2) of the DIS tester.
6. Insert tool 135270 into the supply pipe.
7. Turn on the ignition.
8. Read the fuel supply pressure value.
With ignition ON and fuel pump running: 3500 - 7000 mbar.
Fuel return pressure: 200 - 800 mbar.
[The article text was copied from an online resource www.bmwman.ru]