seat Workshop Repair Guides

SEAT Workshop Service and Repair Manuals

ABOUT US
Auxiliary heater -D5W- Z (supplementary heater), vehicles?06.2000?? > < Start signals

Leon Mk2

Start procedure
Start procedure
After each engine start the flame monitor -G64- must inform the control unit within 130 seconds after the heating has switched on, that the flame is burning normally. If this not the case, then the heater unit automatically attempts a second start. If, after the second start, the flame still does not burn normally, the heater will remain switched off until the engine is started again.
In part load mode the combustion air blower -V6- operates at reduced rpm and the metering pump -V54- delivers only approx. 50% of fuel (reduced pulse frequency).
Abortion of start procedure
The start procedure is aborted if:
t  The flame monitor registers that the flame is not burning normally within 130 seconds.
t  The temperature or overheating sensor detects a temperature greater than approx. 125 °C.
t  The temperature difference between the temperature and overheating sensors exceeds 15 °C.
t  The control unit detects a fault → Chapter.
   

Auxiliary heater -D5W- Z (supplementary heater), vehicles?06.2000?? > < Start signals