If a fault is diagnosed in the system, such as e.g. failure of the
high-pressure sensor, the fuel-supply control
valve is de-energized; the fuel then flows via a so-called bypass into the rail.
In the event of HPI limp-home mode, turbocharging is deactivated by an opening
of the wastegate valves.
REMOVING AND INSTALLING/SEALING OR REPLACING TRANSMISSION SUMP
(GA6HP26Z)
IMPORTANT: Remove transmission sump only after it has cooled down.
After completion of work, check transmission oil level.
Use only the approved gear oil.
Failure to comply with this requirement will result in serious damage