GF83.70-S-2101A | Heater booster, location/purpose/design/function | 14.9.98 |
MODEL 638.094 /194 /294 with ENGINE 611.980
with heater booster
S83.70-2525-06
1 Jacket
2 Coolant inlet
3 Coolant outlet
4 Heater core
5 Burner housing
A90 Heater booster
A90.1 Main wiring harness connector to heater booster
A75 Heater booster control module
A75.3 Heater booster connector in electric compartment
B94 Coolant temperature switch
B95 Overheating fuse
B96 Flame monitor
M44 Combustion air blower
M54 Heater booster fuel metering pump
R18 Glow plug
Heater booster, location | |||
Purpose | Heating the coolant and the vehicle passenger compartment with engine standing still. | ||
Design | The heater booster (A90) consists of the following components: Hot water heater booster control module (A75) Fuel metering pump (M54) Glow plug (R18) Combustion air blower (M44) Coolant temperature switch (B94) Overheating fuse (B95) Flame monitor (B96) Burner housing (5) Heater core (4) | ||
Heater booster, function |