Passat 2015 ➤, Passat 2019 ➤, Passat Variant 2015 ➤, Passat Variant 2019 ➤
Maintenance - Edition 11.2020
5
Exhaust emissions test
This chapter provides information on the following subjects:
Exhaust emissions test for petrol engines ⇒ page 208
Exhaust emissions test for diesel engines ⇒ page 210
Note
♦ Please observe the country specific legal regulations.
♦ The exhaust emissions test described below has been cre‐
ated according to the legal regulations valid in Germany.
5.1
Exhaust emissions test for petrol en‐
gines
Special tools and workshop equipment required
♦ Exhaust gas testing station L -VAS 7320 A-
Note
♦ The following description refers to vehicles fitted with “On‐
board diagnosis” OBD.
♦ The OBD monitors all components and part systems influ‐
encing the exhaust emissions quality.
♦ It is possible to carry out an exhaust emissions test only
when all units of the emissions testing station are connected
properly and joined to each other according to the operating
instructions.
♦ All work to be performed is displayed by the emissions test‐
ing station.
Conditions for testing
•
All test conditions and data required for exhaust emissions
test are found on EET data sheet for the respective engine.
•
For bar code reading the EET data sheet must be printed
out.
•
•
•
•
Automatic gearbox: selector lever in position “P” or “N”.
Manual gearbox: gear lever in neutral
Parking brake applied
12V battery fully charged (if battery charge is too low, raise
idling speed if necessary).
•
Hybrid vehicles: the EET is to be performed on the combus‐
tion engine.
– Perform exhaust emissions test according to instructions on
display.
Vehicle data input
– Enter the following data:
♦ Registration number
♦ Key numbers
♦ Vehicle identification number
208
5. Exhaust emissions test
Passat 2015 ➤, Passat 2019 ➤, Passat Variant 2015 ➤, Passat Variant 2019 ➤
Maintenance - Edition 11.2020
♦ Fuel type
♦ Mileage
The following vehicle data can be found in the vehicle registra‐
tion certificate part 1:
♦ Registration number: “e.g. WOB-HH 1234”
♦ Emission key number “Field 14.1 (code for field 14)”
♦ Vehicle 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. By manual input
♦ 2. By bar code input from EET data sheet
♦ 3. Through ELSA web service
Note
♦ To use the ELSA web service, the exhaust gas testing sta‐
tion L which is used for the exhaust emissions test must be
integrated in the workshop network.
♦ The ELSA web service automatically transmits the data for
the specific vehicle via the network to the respective mask.
Manual specified data input for EET:
Note
All test conditions and data required for exhaust emissions test
can be found in the ⇒ Data sheets for exhaust emissions test
for respective engine.
– Perform manual data input according to instructions on dis‐
play.
– 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
“Broad-band probe”.
9 - Lambda probe value
Specified data input for EET as bar code:
5. Exhaust emissions test
209
Passat 2015 ➤, Passat 2019 ➤, Passat Variant 2015 ➤, Passat Variant 2019 ➤
Maintenance - Edition 11.2020
– If specified data for EET are available as bar code, read bar
code of EET data sheet with bar code reader.
All data required are shown on display.
Inspection
– Inspect all exhaust emissions relevant components.
– Check if exhaust system is fitted and complete and check for
leaks and damage.
Procedure
– Start the engine.
If hybrid vehicle starts in »E-Mode«, combustion engine must
be activated for EET.
Version 1
– On hybrid vehicles, open bonnet to make sure that only the
combustion engine is activated.
Version 2
– Close bonnet.
– Take up driving position.
– Wear seat belt.
– Selector lever in position “P”.
– Operate brake pedal.
– Press accelerator pedal to »kickdown« position.
Combustion engine is now active.
– Open bonnet again.
– Follow instructions from exhaust gas testing station.
5.2
Exhaust emissions test for diesel en‐
gines
Special tools and workshop equipment required
♦ Exhaust gas testing station L -VAS 7320 A-
Note
♦ The following description refers to vehicles fitted with “On‐
board diagnosis” OBD.
♦ The OBD monitors all components and part systems influ‐
encing the exhaust emissions quality.
♦ It is possible to carry out an exhaust emissions test only
when all units of the emissions testing station are connected
properly and joined to each other according to the operating
instructions.
♦ All work to be performed is displayed by the emissions test‐
ing station.
Conditions for testing
•
All test conditions and data required for exhaust emissions
test are found on EET data sheet for the respective engine.
•
•
Automatic gearbox: selector lever in “P” position
Manual gearbox: gear lever in neutral
210
5. Exhaust emissions test
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