Volkswagen CJDA Workshop Manual page 478

3
Industriemotoren - Industrial Engines 2009 ▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
DANGER!
If the soot loading in the display zones 2 and 3 exceeds
40 g, NEVER start a regeneration! Risk of fire.
If soot loading in display zones 2 and 3 is between 30.0 ... 37 g:
– Perform a regeneration of the diesel particulate filter
⇒ P age
463.
If the ash deposit mass in display zone 1 exceeds 175 ml or the
soot loading in display zones 2 or 3 exceeds 40.0 g:
– Exit diagnosis function.
– Switch off ignition.
– Renew diesel particulate filter.
3.11 Checking diesel particulate filter, en-
gine codes CPYA, CPYB
Test prerequisites
● Fuses must be OK.
● The battery voltage must be at least 11.5 V.
● All electrical consumers must be switched off.
● Earth connections OK
● No fault entry in event memory
ory.
Test procedure
– Press button.
←
– Select "Display group 108".
Indicated on display:
– Check ash deposit mass in display zone 1. Specification:
< 500 ml (for large diesel particulate filter).
– Check calculated soot loading in display zone 2. Specifica-
tion: < 35.0 g.
– Check read soot loading in display zone 3. Specification:
< 35.0 g.
– If the difference between the calculated and the read soot
loading exceeds 20 g, there may be a fault in the following
components: EGR cooler, air mass meter, charge pressure,
injection quantities, injectors (IMA-code), air filter, leak on
pressure differential sender with hoses, charge air system/
turbocharger. Note and evaluate measured value blocks
100, 104, 108.
Note
If the soot loading exceeds 30.0 g, the DPF warning lamp lights
up.
462 Repair Group 26 - Exhaust system
⇒ P age
26, read event mem-
Display group 108
110 ml 30.0 g 30.0 g