each 1000 feet (300 m) altitude above sea level for a
naturally aspirated engine.
All Business Class M2 engines are altitude-
compensated by the use of a turbocharger. This re-
duces smoky exhaust at high altitudes, requires less
downshifting, and allows the engine to make better
use of its fuel. Nevertheless, shift gears as needed to
avoid excessive exhaust smoke.
Engine Shutdown
1.
With the vehicle stopped, apply the parking
brake, and place the transmission in neutral.
NOTICE
Idle the engine one to two minutes before shut-
ting it down. After hard operation, shutting down
the engine without idling may cause damage to
the turbocharger.
2.
Allow the engine to idle one to two minutes be-
fore shutting it down. This allows the lubricating
oil and the coolant to carry heat away from the
combustion chambers, bearings, shafts, and
seals. The extreme heat may cause bearings to
seize or oil seals to leak.
IMPORTANT: Bearings and seals in the turbo-
charger are subjected to the high heat of com-
bustion exhaust gases. While the engine is run-
ning, this heat is carried away by oil circulation,
but if the engine is stopped suddenly, the turbo-
charger temperature may rise as much as 115°F
(46°C).
NOTICE
Except in an emergency, do not shut down the
engine when the coolant temperature is above
194°F (90°C). To do so could damage the engine.
3.
Turn off the ignition switch and shut down the
engine.
Cruise Control
WARNING
Do not use the cruise control system when driv-
ing conditions do not permit maintaining a con-
stant speed, such as in heavy traffic or on roads
that are winding, icy, snow-covered, slippery, or
roads with a loose driving surface. Failure to fol-
low this precaution could cause a collision or
loss of vehicle control, possibly resulting in per-
sonal injury or property damage.
Dash-Mounted Switches
NOTICE
When the cruise control is engaged, do not at-
tempt to shift gears without using the clutch
pedal. Failure to follow this precaution will result
in a temporarily uncontrolled increase in engine
speed. Transmission damage and gear stripping
could result.
Cruise control is activated by two dash-mounted
switches (
•
On/Off Switch—this two-position rocker is la-
beled SPD CNTL on the lower half of the
switch. When cruise control is on, an amber
light illuminates the top part of the switch.
•
Set/Resume Switch—this three-position paddle
switch is labeled RES/ACC above the paddle
and SET/CST below the paddle.
1.
To cruise at a particular speed:
1.1
Press the upper half of the On/Off switch.
1.2
Depress the accelerator pedal until the
speedometer reaches the desired speed.
1.3
Momentarily lower the paddle of the Set/
Resume switch to set the desired speed.
NOTE: The speed memory is lost whenever the
ignition switch is turned to OFF, or cruise control
is turned off.
2.
To disengage the cruise control, do one of the
following:
•
Press the lower half of the on/off switch
button.
•
Depress the brake pedal.
•
Depress the clutch pedal (on a manual
transmission only).
3.
To resume a preselected cruise speed:
3.1
Ensure the cruise control is on.
3.2
Momentarily raise the paddle of the Set/
Resume switch. Cruise will return to the
last speed selected.
Engines
7.11
