Removing and installing heater with holder

AR83.70-S-5330B

Removing and installing heater with holder

7.9.10

 

Removal, installation

1

Disconnect ground from battery

 Installation: Code radio
Set clock

See 

Owner's Manual 

AR54.10-S-0005A

 Danger!

Fuel vapors present an explosion hazard. Combustion gases are toxic when inhaled. Heater can cause severe burns during and after operation.

Do not start up or operate stationary heaters or engines with heater boosters in closed rooms or in the vicinity of service stations. Allow heater to cool off after operation and wear protective gloves.

AS83.70-Z-0002-01A

Danger!

Danger of severe burns to skin and eyes from hot coolant spewing out. Coolant is toxic when swallowed

Open cooling system only when coolant temperature is below 90 °C. Open cover slowly and reduce pressure. Do not fill beverage containers with coolant. Wear protective gloves, protective clothing and protective goggles.

AS20.00-Z-0001-01A

 Danger!

Fuel vapors present an explosion hazard. Fuel is toxic when inhaled or absorbed. Contact with fuel can cause eye and skin injury.

AS47.00-Z-0001-01A

2

Release pressure in coolant circuit

3

Lower hot water auxiliary heater (4) with holder (9)

AR83.70-S-5330-01B



*BA83.70-N-1005-01A

4

Clamp off coolant lines (1, 3) with clamp (4)



*000589543700

5

Disconnect coolant lines (1, 3) from hot water auxiliary heater (4)

 Catch coolant running out in suitable vessel.

 Check condition of clamps (2), replace if necessary.

6

Remove fuel line



 Installation: Replace hose clamp on fuel line.

 Catch fuel running out in suitable vessel.

*000589403700

7

Separate connectors (5, 6, 7)

8

Remove hot water auxiliary heater (4) together with holder (9)

9

Install in opposite order

 Danger!

Accident hazard resulting from vehicle starting to move by itself with engine running. Danger of injury resulting from pinching and burning when reaching in during the starting operation or with the engine running.

Secure vehicle against starting to move unintentionally.
Wear closed and tight fitting work clothing.

Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

10

Start engine, bleed cooling and heating system

Allow engine to warm up for approx.
1 minute at alternating speeds. Add coolant continuously up to top mark in coolant expansion reservoir.

11

Shut off engine

12

Check for proper function

AR83.70-S-5302-02A

Number

Designation

Model
638

BA83.70-N-1005-01A

Holder on floor assembly

Nm

8