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Home >> Porsche >> 2024 >> Macan Base >> Repair and Diagnosis >> Engine Mechanical >> Fuel System >> 20 Fuel Supply, Actuator 2.0L -- 95B - MACAN (95B) >> WM, 200301 Checking Fuel Quality >> Checking Fuel Quality >> Measuring Amount Of Petrol Residue In Diesel

Measuring Amount Of Petrol Residue In Diesel

WARNING: Highly inflammable or explosive materials 
  • Danger of fire or explosion 
    1. → Avoid contact with hot parts or sources of ignition.
    2. → Use suction to remove ignitable vapours.
    3. → Attach warning sign in a clearly visible position.
    4. → 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.
    5. → Secure collection containers/vessels to prevent them from tipping over.

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.
    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.
    G15150842Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Filter pads on sensor head

  3. Push the measuring cylinder -1-  into the fixing clip -2-  in the case -Arrow-  .
    G15150843Courtesy 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.
    G15150844Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Placing spindle sleeve under lid of case

  5. Pour 500 milliliters (ml) of fuel -Arrow-  into the measuring cylinder.
    G15150845Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Fuel in measuring cylinder

  6. Carry out a self-test on the fuel detector.
    1. 6.1  Press button -1-  (Test). 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 -3-  lights up red - Check power supply/sensor head and repeat test.
    G15150846Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Fuel detector self-test

  7. Push fuel detector -1-  into the measuring cylinder -2-Arrow-  .
    G15150847Courtesy 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.
    3. 7.3  Slide fuel detector -1-  into the measuring cylinder -2-  .
  8. Start test for measuring the amount of petrol residue in the diesel.
    1. 8.1  Press button -1-  (Test). The test takes 3 minutes.
    G15150848Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Starting the test

  9. Evaluation of 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.
G15150849Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Evaluating test result

WARNING: Highly Inflammable or explosive materials 
  • Danger of fire or explosion 
    1. → Avoid contact with hot parts or sources of ignition.
    2. → Use suction to remove ignitable vapours.
    3. → Attach warning sign in a clearly visible position.
    4. → 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.
    5. → 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-  .
    G15150850Courtesy 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.
    G15150851Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Placing spindle sleeve under lid of case

  3. Pour 500 milliliters (ml) -Arrow-  of fuel into the measuring cylinder.
    G15150852Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Fuel in measuring cylinder

  4. Carefully immerse the measuring spindle into the liquid and let it go. > Measuring spindle in fluid 

    Do not drop the measuring spindle! 

    G15150853Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Measuring spindle in fluid

    1. 4.1  The spindle must be floating in the middle in order to read off the scale value. > Position of measuring spindle for reading off value 
      G15150854Courtesy of PORSCHE CARS NORTH AMERICA, INC.

      Position of measuring spindle for reading off value

    2. 4.2  Read off the scale value. > Scale value on measuring spindle 
    G15150855Courtesy 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. > Cleaning the measuring equipment 
    G15150856Courtesy of PORSCHE CARS NORTH AMERICA, INC.

    Cleaning the measuring equipment

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