SDS Test - "Check Components Of High Pressure Control Circuit" (TT 02/11-D)
Publication date: 2011-02-01Reference number: TT 02/11-D
SDS TEST - "CHECK COMPONENTS OF HIGH PRESSURE CONTROL CIRCUIT"
DEALER TECH TOPICS; FEBRUARY 2011
Reference Number(s): TT 02/11, Date of Issue:
February 2011
| MERCEDES-BENZ: | Models with OM642 Engine |
| GROUP: | 07.16 - Common-rail diesel injection (CDI) |
CAUSE / EXPLANATION
Test does not complete at times. SDS gives message "The test prerequisite has not been met".
CORRECTION
On the last line of the page before you start the test, (see worksheet "SDS test"), Under "Status of the relevant actual values", make sure "Y94 (Pressure control valve)" is present (highlighted) before continuing with the F2 key. This may take 30-40 seconds.
If you hit F2 before this happens you get a new screen that tells you the test prerequisite has not been met.