Check testing equipment for leaks!
Select "Measurement/Pressure" function on Diagnosis and Information System (DIS).
Using pressure regulator on special tool 16 1 171, increase pressure by 0.2 bar.
Using special tool 13 3 010 clamp off feed line from special tool 16 1 171.
Read off and note down pressure.
Wait 60 secs.
Read off pressure again and compare with starting pressure value.
Measurement evaluation:
| Pressure drop > 0.012 bar | Testing equipment leaking. Check connection points for leaks. |
Check fuel filler cap pressure relief valve!
Select "Measurement/Pressure" function on Diagnosis and Information System (DIS).
Using pressure regulator on special tool 16 1 171, increase pressure by 0.3 bar.
Using special tool 13 3 010 clamp off feed line from special tool 16 1 171.
Read off and note down pressure.
Wait 60 secs.
Read off pressure value again and compare with starting pressure value.
Measurement evaluation:
| Pressure drop > 0.012 bar | Filler cap pressure relief valve faulty. Replace fuel tank cap. |