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Table of Contents > 5 Exhaust emissions test > 5.1 Exhaust emissions test for petrol engines

VW Passat B7 Service Manual ➜ 5.1 Exhaust emissions test for petrol engines

Passat 2011 ➤ , Passat Variant 2011 ➤  
Maintenance - Edition 01.2019  
5
Exhaust emissions test  
This chapter provides information on the following subjects:  
Exhaust emissions test for petrol engines ⇒ page 176  
Exhaust emissions test for diesel engines ⇒ page 178  
Note  
Please observe the country specific legal regulations.  
The exhaust emissions test described below has been created  
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 influenc‐  
ing 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 prop‐  
erly and joined to each other according to the operating in‐  
structions.  
All work to be performed is displayed by the emissions testing  
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).  
– Perform exhaust emissions test according to instructions on  
display.  
Vehicle data input  
– Enter the following data:  
♦ Registration number  
♦ Key numbers  
♦ Vehicle identification number  
♦ Fuel type  
♦ Mileage  
176  
5. Exhaust emissions test  
 
Passat 2011 ➤ , Passat Variant 2011 ➤  
Maintenance - Edition 01.2019  
The following vehicle data can be found in the vehicle registration  
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 station  
L which is used for the exhaust emissions test must be inte‐  
grated 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:  
– 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.  
5. Exhaust emissions test  
177  
Passat 2011 ➤ , Passat Variant 2011 ➤  
Maintenance - Edition 01.2019  
Inspection  
– Inspect all exhaust emissions relevant components.  
– Check if exhaust system is fitted and complete and check for  
leaks and damage.  
Procedure  
– 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 influenc‐  
ing 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 prop‐  
erly and joined to each other according to the operating in‐  
structions.  
All work to be performed is displayed by the emissions testing  
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  
Parking brake applied  
12V battery fully charged (if battery charge is too low, raise  
idling speed if necessary).  
– Perform exhaust emissions test according to instructions on  
display.  
Vehicle data input  
– Enter the following data:  
♦ Registration number  
♦ Key numbers  
♦ Vehicle identification number  
♦ Fuel type  
♦ Mileage  
The following vehicle data can be found in the vehicle registration  
certificate part 1:  
♦ Registration number: “e.g. WOB-HH 1234”  
♦ Emission key No. “field 14.1 (code for field 14)”  
♦ Vehicle manufacturer: “Field 2”, “Field 2.1 (code for field 2)”  
♦ Vehicle identification number “field E”  
178  
5. Exhaust emissions test  

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