Heater, engine - AUDI A4/A5/Q5 1.8TFSI/2.0TFSI 230V - 412734- DEFA
Engine heater 700 series for cars: Audi
The engine heater of the 700 series supplied by DEFA is adapted to liquid and air-cooled engines with small or large volume of coolant. Our range includes heaters for passenger cars, vans, trucks, agricultural tractors and stationary engines. There are nine series of heaters distinguished depending on the way they are mounted. The 700 series engine heater part number 412734 is installed in the engine cooling line of Audi 1.8TFSI and 2.0TFSI passenger cars, models:
A4 1.8 TFSI 2012> engine code: CJE
A4 2.0TFSI 2013> engine code: CNC
A5 1.8TFSI 2012> engine code: CJE
A5 2.0TFSI 2014> engine code: CNC
Q5 2.0TFSI 2013> engine code: CNC
DEFA engine heater heats the engine efficiently and effectively. Most heaters are mounted in such a way that the heating element is in direct contact with the coolant and ensures its slow circulation.
Product is protected by a fusible link that burns out when the temperature rises excessively. Burnout can be caused by:
Coolant level too low (heating element is in contact with air).
Air pocket all around the heating element (the heating element comes in contact with the air).
Dirty or contaminated coolant creates an insulating layer (scale) around the heating element, blocking heat transmition.
The DEFA 700 series heater can heat the coolant to about 50°C above the outdoor temperature, depending on the location the heater is mounted and the capacity of the cooling system.
The optimum operating time is dependent on the outside temperature. After 3 hours at -17°C, the system reaches thermal equilibrium, which means that the energy supplied after that time is only for temperature maintenance. Additional heat is emitted to the outside. The DEFA heater can remain connected to a power source without the risk of destroying the heating element, however this will only result in unnecessary electricity consumption.
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