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| Close shut-off valves -B+C-. |
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| Start warm engine (>60° C), press accelerator briefly (engine speed greater than 2000/min). |
Under normal conditions (see notes), the generated vacuum should be between 600 and 950 mbar (depending on engine version). |
If the specified value is not obtained even though the test conditions (see notes) have been met, the vacuum system must first be checked for leaks. |
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| For comparison purposes, generate the vacuum with the hand vacuum pump -VAS 6213- → Chapter. |
Open shut-off valve -B- to facilitate removal of hose connections and adapter. |
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