Starting The Engine - Aston Martin DB 9 2013 Manual

Driving Through Deep Water
If in any doubt whether to drive through deep water, always
take the side of caution to avoid potentially costly damage to the
vehicle's engine or other essential systems.
If driving on flooded roads, through deep or standing water is
unavoidable, proceed with extreme caution, especially when the
depth is not known. Never drive in water deeper than the lower edge
of the front bumper. Water can be splashed up into the engine air
intakes located in the front upper grille and cause extensive damage
to the engine or the vehicle may stall.
When driving through water, traction or brake capability may be
limited. Once through the water, always dry the brakes by driving
slowly while applying light pressure on the brake pedal.
Waves caused by other vehicles or natural causes can also splash
water in the engine air intakes.
Running-In
This vehicle is fully hot tested during manufacture and no special
running-in procedures are necessary. Nevertheless it is
recommended to limit engine loads (e.g. by accelerating gently and
by using lower gears on steep hills or when negotiating tight turns)
during the first 1500 km.

Starting the Engine

Warning: Only use the vehicle key in the ignition control. Do
not place any objects, including fingers, into the ignition control
other than the vehicle key. Objects other than the vehicle key
may cause the ignition control unit to fail.
In extreme low temperatures (-20°C and below) do not allow
the engine to 'rev' above 4000 rpm, while at standstill or when
moving off, until the coolant temperature gauge reaches normal
operating temperature. Revving the engine before fully warmed
up may cause severe engine and transaxle damage.
Do not press the vehicle key while driving. If the key is pressed
in and released the engine will stop. If the key is removed from
the ignition control while driving the engine will stop but the
steering lock will not engage until the vehicle has come to a
complete stop.
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