User Manual

Chapter 12
BOSCH HDI EDC 15C2 INJECTION SYSTEM AND PARTICLE FILTER
103
E - OPERATION
The BSI determines the passenger compartment heating requirement when the
engine is started depending on the exterior air temperature and the coolant
temperature.
The built-in systems interface operates the additional heater in the following
conditions:
• engine operating for more than 60 seconds,
• engine speed above 700 rpm,
• battery voltage greater than 12 volts (positive electrical balance),
• coolant temperature above 40°C.
The built-in systems interface controls the heater stages progressively:
• first stage,
• second stage,
• second stage and first stage.
The additional heating is switched off when the temperature conditions so allow
(curve).
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