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Home >> Porsche >> 2019 >> Cayenne S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 26 (20 Fuel Supply, Actuator 3.0L -- 9YA - Cayenne (9YA)) >> WM, 200301 Checking Fuel >> Checking Fuel Quality >> Measuring Amount Of Petrol Residue In Diesel

Measuring Amount Of Petrol Residue In Diesel

WARNING: This page is about a different variant/trim than selected.

Information 

Risk of damage to sensor head on fuel detector.

Information 

Start the test immediately after filling the measuring cylinder with fuel.

  1. Connect fuel detector to a 12 V power source.
    G15241114Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Filter pads on sensor head

    1. 1.1  Variant 1: Connect directly into 12 V socket or cigarette lighter in the passenger compartment.
    2. 1.2  Variant 2: Connect to the vehicle battery using adapter for battery connection.
  2. Affix filter pads -1-  for fuel detector to the sensor head -2-  on the fuel detector.
  3. Push the measuring cylinder -1-  into the fixing clip -2-  in the case -Arrow-  .
    G15241115Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Measuring cylinder in fixing device in the lid of the case

  4. Place the spindle sleeve -1-  under the lid of the case -Arrow-  so that the measuring cylinder is horizontal.
    G15241116Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Spindle sleeve under lid of case

  5. Pour 500 millilitres (ml) of fuel into the measuring cylinder.
    G15241117Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Fuel measuring cylinder

  6. Carry out a self-test on the fuel detector.
    G15241118Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Fuel detector self-test

    1. 6.1  Press the -1-  Test button. The self-test takes 1 minute.
    2. 6.2  LED -2-  lights up green - Fuel detector is ready for the test.
    3. 6.3  LED -2-  lights up red - Check power supply/sensor head and repeat test.
  7. Push fuel detector -1-  into the measuring cylinder -2-  (-Arrow-  ).
    G15241119Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Fuel detector in measuring cylinder

    1. 7.1  Coat O-ring -3-  with fuel.
    2. 7.2  Press button -4-  for bleeder valve in the fuel detector.
  8. Start test for measuring the amount of petrol residue in the diesel.
    G15241120Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Starting test

    1. 8.1  Press the -1-  Test button. The test takes 3 minutes.
  9. Evaluation of test result.
    G15241121Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Evaluating test result

    1. 9.1  LED -1-  lights up green = no petrol residue in the diesel.
    2. 9.2  LED -2-  lights up red = petrol residue in the diesel.
WARNING: Highly inflammable or explosive materials 
  • Danger of fire or explosion 
    • → Avoid contact with hot parts or sources of ignition.
    • → Use suction to remove ignitable vapours.
    • → Attach warning sign in a clearly visible position.
    • → Contain leaked media using non-flammable absorbent material and put it in a container designed for this purpose for disposal in accordance with local requirements.
    • → Secure collection containers/vessels to prevent them from tipping over.

Information 

  1. Push the measuring cylinder -1-  into the fixing clip -2-  in the case -Arrow-  .
    G15241122Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Measuring cylinder in fixing device in the lid of the case

  2. Place the spindle sleeve -1-  under the lid of the case -Arrow-  so that the measuring cylinder is horizontal.
    G15241123Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Spindle sleeve under lid of case

  3. Pour 500 milliliters (ml) -Arrow-  of fuel into the measuring cylinder.
    G15241124Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Fuel measuring cylinder

  4. Carefully immerse the measuring spindle into the liquid and let it go.

    Do not drop the measuring spindle! 

    G15241125Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Information on measuring spindle

    1. 4.1  The spindle must be floating in the middle in order to read off the scale value.
      G15241126Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Position of measuring spindle for reading off value

    2. 4.2  Read off the scale value.
      G15241127Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Scale value on measuring spindle

  5. Assign the scale value using the table below.
    Scale value (at 20° Celsius] Assessment Comment
    Below 0 Case for fuel laboratory (neither petrol nor diesel) Laboratory test required
    0... 5.5 Petrol EN 228  
    4.5... 6.5 E 85  
    Approx. 7 E 100 (pure ethanol)  
    7... 9 No evaluation possible (neither petrol nor diesel) Laboratory test required
    9... 11 Diesel in Asia (Russia/India)  
    10... 13 Diesel in accordance with EN 590 (Europe)  
    13... 15 No evaluation possible, "wild mix" Laboratory test required
    15... 17 Biodiesel Laboratory test required
    Above 17 Measuring spindle does not stay in the fuel (water-like density). Laboratory test required

    Information 

    • Fuel, fuel mixes and cleaning mixes must be disposed of according to the applicable national regulations. 
  6. After testing the fuel, wash out and wash off measuring equipment thoroughly using the cleaning brush, washing-up liquid and hot water.
    G15241128Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Cleaning measuring equipment

  7. After analysing the fuel quality, carry out the required measures.