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

AR83.60-S-0010E

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

30.04.2020

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 447.8 with code HZ7 (Semi-automatically controlled air conditioning system, TEMPMATIC in rear passenger compartment) with code T56 (Electric actuation for left sliding door) except code ZK7 (MARCO POLO equipment line)

1

Air duct

2

Fresh air vent

Shown on model 447.8 with code T56 (Electric actuation for left sliding door) except code ZK7 (MARCO POLO equipment line)

7

Clip

8

Feed hose

9

Clip

10

Return hose

Shown on model 447.8 except code ZK7 (MARCO POLO equipment line)

8

Feed hose

10

Return hose

13

Clip

14

Clip

 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

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

 Caution

Risk of injury caused by scraping or cutting body parts on sharp vehicle parts

Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.

AS00.00-Z-0017-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

Topical note

Special instructions for lifting and supporting vehicle

AH00.60-N-0100-01A

Topical note

Notes on carrying out repair work in the vehicle interior

AH68.00-N-0001-01S

Topical note

General information on vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system as well as personal protective equipment

Typ 447.8 mit Motor 780

AH00.00-Z-0300-01A

 

Remove/install

1

Drain off coolant.

Model 447.7 with engine 622.8

AR20.00-S-1142EH

Model 447.7/8 with engine 654.9

AR20.00-S-1142E

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

2.1

Remove rear left side trim in rear passenger compartment.

Model 447.7, 448.7, model 447.8 except code ZK7 (MARCO POLO equipment line), model 448.8

AR68.30-S-1206E

2.2

Remove cabinet.

Model 447.8 with code ZK7 (MARCO POLO equipment line)

AR86.60-S-0041E

3

Release kitchenette and swivel far enough into vehicle interior until feed hose (8) and return hose (10) are accessible.

Model 447.8 with code ZK7 (MARCO POLO equipment line)

AR86.60-S-0003E

4

Remove air duct (1).

5

Remove air vent (2).

6

Remove feed hose (8).

 To do so, release clamps (7, 13).
Collect coolant which flows out.

 Commercially available devices/tools
Collecting pan

 Installation: Check clamps (7, 13) for damage.

 Hose clamp pliers

*454589003700

If damage is present,



replace respective clamp (7, 13).

7

Remove return hose (10).

 To do so, release clamps (9, 14).
Collect coolant which flows out.

 Commercially available devices/tools
Collecting pan

 Installation: Check clamps (9, 14) for damage.

 Hose clamp pliers

*454589003700

If damage is present,



replace respective clamp (9, 14).

8

Install in the reverse order.