Auxiliary heater (AHE) diagnosis previous knowledge · ad8370w2000c · Mercedes-Benz WIS

AD83.70-W-2000C

Auxiliary heater (AHE) diagnosis previous knowledge

3.12.97

MODEL 625.1 /2, 655, 656, 657, 658, 659 with CODE (H27) Hot water auxiliary heater DW 80

MODEL 650, 651, 652, 653, 654 with CODE (H27) Hot water auxiliary heater DW 80

 Danger!	Risk of explosion due to fuel vapors, risk of poisoning from combustion gases and risk of injury from burning during or after heater operation	Do not put stationary heater, auxiliary heater or engine with heater booster into operation in confined spaces or in when filling fuel tank. Allow heater unit to cool down after operation and wear protective gloves.	AS83.70-Z-0002-01A
 Danger!	Risk of injury to skin and eyes through scalding by hot, pressurized coolant. Risk of poisoning through swallowing coolant.	Open cooling system only when coolant temperature is below 90°C. Slowly unscrew cap and allow the excess pressure to escape. Coolant should not be poured into drinking vessels. Wear protective gloves, protective clothing and protective glasses.	AS20.00-Z-0001-01A
	Connection and use of test equipment		AD00.00-W-1000CZ
	DW80 Webasto auxiliary heater (AHE) wiring diagram	Refer to Workshop Manual, electrical system volume 4
	Auxiliary heater (AHE), location of components		GF83.70-W-0003-03C
	Auxiliary heater diagnostic tools		AD83.70-W-2000-02A
	Notes on auxiliary heater (AHE) fault memory		AD83.70-W-2000-05A
	Notes on AHE component testing		AD83.70-W-2000-16A
	Assignment of plug carrier on AHE heater unit		AD83.70-W-2000-18A

ad0000w1000cz Connection and use of test equipment
ad8370w200002a Auxiliary heater (AHE) diagnosis tools
ad8370w200005a Auxiliary heater (AHE) notes on fault memory
ad8370w200016a AHE notes on component test
ad8370w200018a AHE assignment of connector panel on heater unit
as2000z000101a Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.
as8370z000201a Risk of explosion caused by fuel vapors igniting, risk of poisoning caused by inhaling combustible gases and risk of injury caused by burns during and after operation of heater unit
gf8370w000303c Auxiliary heater (AHE), location of components