Execution order
1. Remove the fuel pump relay or fuse and crank the engine with the starter for a few seconds to release the pressure.
2. Carefully disconnect any of the fuel system pipes and release the pressure completely.
Releasing pressure from the fuel injection system (Audi A6 C4)
1. Remove the fuel pump relay or fuse and crank the engine with the starter for a few seconds to release the pressure.
2. Carefully disconnect any of the fuel system pipes and release the pressure completely.
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