Field Remedy: 2374

Remedy:

In case of customer complaint please carry out a SPS programming of 
the ECU. The software is scheduled to be available on TIS2WEB as of:

- CW 45/2008 for Model Astra-H, Z17DTJ and Z17DTR as of software 
  version number 4.
- CW 51/2008 for Model Corsa-D, Z17DTR as of TIS2Web version 12,5 
  (15th December 2008) software version number 8.
- CW 51/2008 for Model Meriva, Z17DT, 17DTR as of TIS2Web version 12,5
  (15th December 2008) software version number 9.
- CW 30/09 (27.07.2009) for Model Zafira-B, A17DTR and A17DTJ. 

If new software does not work please proceed with procedure a.) 
to c.) if necessary.

a.) Check vacuum lines from vacuum pump to Electric Pneumatic Valve 
(EPV) and from EPV to turbo charger for any kind of restriction. 
In case the vacuum lines are restricted, e.g. blocked the VNT 
actuator can not be properly ventilated which might result into an 
over boost issue.

b.) Check the function of the VNT-Actuator (= control rod at the 
turbo charger) by use of special tool KM-667 (vacuum pump). Connect 
the hand device to the box and apply vacuum. The rod starts to move 
at about 300 mbar and stops at around 500 mbar (valid for already 
used T/C). The mechanism must be free of corrosion and must 
operate w/o restriction.

c.) Finally if you can rule out any kind of system error at the 
periphery, e.g. vacuum lines not restricted, VNT actuator works 
properly, this might end up in a turbo charger 
replacement. 

Please note:

a.) There is no need to replace the boost pressure sensor!

b.) Please note: No need to replace vacuum switch valve 97288249 
    for actuating the EGR cooler assembly.