Retrofitting Eberspächer Hydronic B5W SC water heater unit

AZ83.70-S-0011A

Retrofitting Eberspächer Hydronic B5W SC water heater unit

20.5.99



Removing

Danger!

Risk of explosion from ignition, risk of poisoning from inhaling and swallowing fuel, as well as risk of injury from skin and eye contact with fuel.

No fire, sparks, naked flames or smoking.
Pour fuels only into suitable and appropriately marked containers.

Wear protective clothing when handling fuel.

AS47.00-Z-0001-01A

Danger!

Risk of explosion from fuel vapors, risk of poisoning from inhaling combustion gases and risk of injury from burns during and after operation of heater unit.

Do not operate stationary heater or engine with heater booster in closed areas or when refueling. 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 from scalding with hot coolant which splashes out. Risk of poisoning from swallowing coolant.

Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage bottles.

Wear protective gloves, protective clothing and eye protection.

AS20.00-Z-0001-01A



Information for retrofitting of a stationary heater with fuel combustion

All models with stationary heaters with fuel combustion

AH83.70-N-0001-05A

1

Remove front seat

Driver's side



AR91.10-S-1000A

2

Remove side access plate to battery and upper cover of driver seat box

3

Remove battery

4

Loosen wheel arch cover in driver's footwell

5

Remove trim panels below instrument panel in driver's footwell

Model 638.294

6

Remove plastic trim on inside of driver's seat box

Model 638.294

7

Remove driver entrance door strip

8

Remove radio and radio console

9

Loosen gear lever boot from cover

10

Remove center instrument panel cover together with operating and control module for air conditioning unit

 Two screws in vicinity or ventilating louvers and two screws in radio installation shaft

11

Loosen exhaust system heat reflector plate on vehicle floor

12

Remove fuel pump and fuel tank sensor



AR47.20-S-7000A



Installing

13

Prepare mounting plate for water heater for installation

AZ83.70-S-0001-01A

14

Drill attachment holes for mounting plate in vehicle floor

AZ83.70-S-0001-02A



*WH58.30-Z-1003-29A

Corrosion protection

15

Prepare coolant hoses for connection to cooling and heating circuit

AZ83.70-S-0001-04A

16

Install water heater, exhaust gas pipe and combustion air induction pipe on mounting plate

AZ83.70-S-0001-03A

17

Retrofit fuel metering pump

AZ83.70-S-0011-03A



*000589122800

18

Screw mounting plate together with water heater to vehicle floor

19

Connect water heater to cooling and heating circuit



*000589543700

Manually operated heater

AZ83.70-S-0001-05A

Heizmatic/Tempmatic

AZ83.70-S-0001-05C

20

Install fuel pump and fuel tank sensor

 Install new version of tank sensor from parts kit and connect the flexible fuel pipe to the fuel metering pump. Route the flexible fuel pipe along the vehicle engine fuel pipes and then to the left frame side rail



AR47.20-S-7000A

21

Connect fuel metering pump

AZ83.70-S-0011-01A



*000589122800

22

Install timer on instrument panel

AZ83.70-S-0001-07B

23

Install cable harness

Manually operated heater

AZ83.70-S-0001-08B

Heizmatic/Tempmatic

AZ83.70-S-0001-08C

24

Connect timer

Heizmatic/Tempmatic

AZ83.70-S-0011-02A

25

Fit remaining parts to vehicle

26

Pour collected coolant into coolant expansion tank and fit expansion tank filler cap

27

Start vehicle engine and allow to run at idling speed

28

Switch off engine after approx. 4 mins, check coolant level and top up if necessary



Notes on coolant

All engines

AH20.00-N-2080-01A

29

Switch on heater according to operating instructions and carry out functional checks i.a.w. manufacturers specifications

 Check fuel and all other connections for leaks during functional checks.

30

Vent water heater

 Venting is only necessary if the unit switches off during the functional checks because of overheating.

AZ83.70-S-0001-09A

Number

Designation

WH58.30-Z-1003-29A

Hand riveter

Part no.

Designation

Quantity

B6 656 0170

Basic unit Eberspächer B5W SC 12V

1

B6 656 0171

Universal installation kit

1

B6 656 0172

Vito installation kit

1