Volkswagen Marine SDI Series Operating Manual page 9

OPERATION
1 - Coolant temperature
gauge*
The display appears when you switch on the
ignition.
When the ignition is switched on, the warn-
ing lamp A lights up for a few seconds as an
operating check.
Note
Avoid high engine speeds and do not sub-
ject the engine to heavy loads while the
coolant temperature is still below 40°C.
Under normal operating conditions the
needle should remain in the middle of the
scale range.
At heavy engine loads and high outside
temperatures, the needle may also move
far into the upper range.
This is not a cause for concern as
long as the warning lamp A does not
light up and the acoustic signal does
not sound.
A - Warning lamp
If the lamp lights up during driving, first
check the coolant temperature gauge.
If the gauge is in the normal range, coolant
must be added as soon as possible.
If the needle is above 105°C, the coolant
temperature is too high. Stop the engine
and determine the cause of the fault - see
page 11.
Attention
Refer to the safety instructions
provided on Page 17 onwards
before carrying out any work on
the engine or in the engine
compartment.
8
8
2 - Rev. counter
Never run the cold engine at high speeds -
either at idle or during driving.
If the needle of the rev. counter goes
above 4,000 rpm, you should cut
back on the throttle to prevent en-
gine damage.
3 - Voltmeter*
The voltmeter indicates the voltage in the
on-board electrical system. Normal value:
between 12 and 16 volts. If the gauge drops
below 12 volts with the engine running,
have the power supply (battery and alterna-
tor) checked by a VW-Marine Service
Partner.
During starting the voltage gauge may drop
below 8 volts.
4 - Multi-function
(MFI)
The multi--function indicator (MFI) provides
a great deal of information. For information
on the operation and functions, please see
the additional operating manual for the
multi-function indicator.
indicator
OPERATION