Seat Leon >> Exhaust emissions test, petrol engines, with emissions testing station L - VAS 7320 A

SEAT Leon Service and Repair Manual / Maintenance / Description of work / Exhaust emissions test / Exhaust emissions test, petrol engines, with emissions testing station L - VAS 7320 A

Special tools and workshop equipment required

  • Emissions testing station L - VAS 7320 A

NOTICE The following description refers to vehicles fitted with "Onboard diagnosis" OBD.

The OBD monitors all components and part systems influencing the exhaust emissions quality.

It is only possible to carry out an exhaust emissions test when all units of the emissions testing station are connected properly and combined with each other according to the operating instructions.

All work to be performed is displayed by the emissions testing station .

Test conditions

  • All test conditions and data required for exhaust emissions test are found on EET data sheet for the respective engine.
  • The data sheet of the exhaust gases inspection must be printed out so that the bar code can be read-off.
  • Automatic gearbox: Selector lever in position "P" or "N".
  • Manual gearbox: Gear lever in neutral
  • Parking brake pressed.
  • Perform exhaust emissions test according to instructions on display.

Vehicle data input

  • Enter the following data:
    • Registration number
    • Key numbers
    • Vehicle identification number
    • Fuel
    • Mileage

The following vehicle data can be found in the vehicle registration certificate part 1:

  • Registration number: "e.g. WOB-HH 1234"
  • Emission key: "field 14.1 (code for field 14)"
  • Manufacturer: "Field 2", "Field 2.1 (code for field 2)"
  • Vehicle identification number "field E"
  • Type and version: "Field D2 (type only)", "Field 2.2 (code for field D.2)"

Specified data input for EET

There are different ways to enter the specified data:

  • 1. manual
  • 2. Bar code input of EET data sheet
  • 3. ELSA web service

NOTICE To use the ELSA web service, the emissions testing station used for the exhaust emissions test must be connected to the workshop network.

For the ELSA web service the vehicle specified data are automatically transmitted via the network to the respective mask.

Manual specified data input for EET:

NOTICE All test conditions and data required for exhaust emissions test.

  • Perform manual data input according to instructions on display.
  • Enter displayed values on EET data sheet in column "Test values for exhaust emissions test" on display as follows:
  1. Test speed (idling speed)
  2. Warm-up phase for catalytic converter
  3. Engine temperature
  4. Increased idling speed
  5. CO content at increased idling speed
  6. Lambda at increased idling speed
  7. Idling speed
  8. Select regulating probe type, either "step-type probe" or "wideband probe".
  9. Lambda probe value

Specified data input for EET as bar code:

  • If EET nominal data is present in bar code format then read in bar code of EET data sheet using reader pen.

All data required are shown on display.

visual inspection

  • Perform visual check of all exhaust emissions relevant components.
  • Check if exhaust system is fitted and complete and check for leaks and damage.

Execution

  • Follow instructions of emissions testing station .
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