Fuel Supply/Injection

WARNING: This page is about a different car, the 2015 Audi A7 Quattro and 2014 Audi A7 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

The Engine Control Module (ECM) is equipped with On Board Diagnostics (OBD). Before repairs such as fault finding, check the Diagnostic Trouble Code (DTC) memory first. Also the vacuum hoses and connections must be checked (unmetered air).
For the electric components to work properly, a voltage of at least 11.5 Volts is required.
Do not use sealants containing silicone. Particles of silicone drawn into the engine, will not be burnt in the engine and damage the oxygen sensor.
The vehicles have a crash fuel shut-off. It reduces the risk of fire in an accident because the fuel pump is switched off.
This setup also makes it easier to start the engine. When the driver-side door is opened, the fuel pump is activated for two seconds so that pressure builds in the fuel system, observe safety measures, refer to FUEL SYSTEM SAFETY PRECAUTIONS .