See also:

Secondary control
For mechanically locking and unlocking the doors in the event of a fault with the central locking system or a battery failure. ...

Gear shift indicator
System which reduces fuel consumption by advising the driver to change up on vehicles fitted with a manual gearbox. Operation The system intervenes only when driving economically. Depending on th ...

Misfuel prevention (diesel)
Mechanical device which prevents filling the tank of a Diesel vehicle with petrol. It avoids the risk of engine damage that can result from filling with the wrong fuel. Located in the filler neck ...