Remove/install front hoses for feed and return to coolant pipes for heater in rear passenger compartment

AR83.60-S-0012E

Remove/install front hoses for feed and return to coolant pipes for heater in rear passenger compartment

09.04.2020

Model

447.7/8

with code H13 (Additional heat exchanger)

Model

447.7/8

with code HZ7 (TEMPMATIC semi-automatic air conditioning in rear)

Model

448

Shown on model 447 with engine 651 with code HZ7 (semi-automatically controlled air conditioning, TEMPMATIC in rear passenger compartment)

1

Clip

2

Clip

3

Front return hose

4

Front feed hose

5

Bracket

Shown on model 447 with engine 780.702 with code HZ7 (semi-automatically controlled air conditioning, TEMPMATIC in rear passenger compartment)

1

Clip

3

Front return hose

5

Bracket

2

Clip

4

Front feed hose

 Danger

Risk of death caused by vehicle slipping or toppling off of the lifting platform.

Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.

AS00.00-Z-0010-01A

 Danger

Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)

Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.Typ 447.8 mit Motor 780.702

AS00.00-Z-0035-01A

 Warning

Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. 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 containers.
Wear protective gloves, protective clothing and safety glasses.

AS20.00-Z-0001-01A

 

Remove/install

1

Drain off coolant.

Model 447.7/8 with engine 654.9

AR20.00-S-1142E

Model 447.7 with engine 622.8

AR20.00-S-1142EH

Model 447.7 with engine 622.9, model 447.7/8 with engine 274, 651, model 448 with engine 274

AR20.00-S-1140E

* Applies to Europe only



Model 447.8 with engine 780.702

AR08.50-S-0022G

2

Remove left underfloor paneling.

Model 447.7/8 with engine 651 with code MX0 (BlueEFFICIENCY package), model 447.7/8 with engine 654.9

AR61.30-S-1001E

Model 447.7 with engine 622.8

AR61.30-S-1001EH

3

Remove cross strut.

* Applies to Europe only

Model 447.8 with engine 780.702

AR61.10-S-5139F

4

Remove holder (5).

 Model 447.8 with engine 780.702
with code HZ7 (TEMPMATIC semi-automatic air conditioning in rear)
To do this, undo bolt.

 Installation: Check bracket (5) for damage.

If damage is present,



Install new bracket(5).

5

Remove clamps (2).

 Installation: Check clamps (2) for damage.

 Hose clamp pliers

*454589003700

If damage is present,



Replace clamps (2).

6

Remove front return hose (3).

 Collect coolant which flows out.

 Commercially available devices/tools
Collecting pan

7

Remove clamps(1).

 Installation: Check clamps (1) for damage.

 Hose clamp pliers

*454589003700

If damage is present,



Replace clamps(1).

8

Remove front feed hose (4).

 Collect coolant which flows out.

 Commercially available devices/tools
Collecting pan

9

Install in the reverse order.