| Releasing pressure in high-pressure area |
WARNING | The injection system consists of a high-pressure section (maximum approx. 120 bar) and a low-pressure section (approx. 6 bar). |
| Prior to opening the high-pressure area, the fuel pressure in the high-pressure area must be reduced to a residual pressure of approx. 6 bar. The appropriate procedure is described as follows. |
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WARNING | The fuel lines are pressurized! Wear eye protection and protective clothing to avoid possible injury and skin contact. Before opening the high-pressure section, wrap a cloth around the connection. |
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| Wrap a clean cloth around the connection. Open the connection carefully, to allow the residual pressure of about 6 bar to escape. Catch the escaping fuel. |
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| After completing work, read fault memory of engine control unit, clear all fault entries that have been created by pulling off connector. |
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