Remove/install radiator unit

AR20.20-P-3871OLG

Remove/install radiator unit

22.10.2019

Engine

654 in model 205.013/213

1

Radiator unit

3

Coolant hoses

11

Bracket

1.1

Radiator

7

Refrigerant line

12

Coolant line

2

Vent line

1.2

High-voltage system radiator

5

Coolant line

9

Electrical connectors

4

Coolant line

6

Refrigerant line

1.2

High-voltage system radiator

6

Refrigerant line

12

Coolant line

4

Coolant line

9

Electrical connector

13

Air ducting

Overview of radiator unit (1) with code ME05 (hybrid drive 85 kW–94 kW variant (incl. plug-in))

1.1

Radiator

1.2

High-voltage system radiator

1.3

Low-temperature radiator

1.4

Condenser

 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

 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

 Danger

Risk of fire due to ignition of R1234yf refrigerant on hot components. Risk of poisoning caused by inhaling overheated refrigerant vapors. Risk of injury to skin and eyes caused by contact with escaped R1234yf refrigerant and when working on pressurized parts. Risk of explosion due to formation of ignitable refrigerant/air mixtures

Never perform welding work on or near a closed air conditioning system. No smoking or open flames. Wear safety glasses and protective gloves. Work only in well ventilated rooms. Carry out repair work on the air conditioning system circuit only after the system has been evacuated.

AS83.00-Z-0007-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Topical note

Protect air conditioning circuit and components from moisture when carrying out repair work

AH83.30-N-0005-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

Notes on handling refrigerant R1234yf

AH83.30-P-0003-02A

 

Remove/install

1

Drain refrigerant circuit.

AR83.30-P-1760LW

2

Drain off coolant.

AR20.00-P-1142OLI

3

Drain coolant from auxiliary circuit.

AR08.50-P-0022OLG

4

Remove front bumper.

AR88.20-P-2000LW

5

Remove fan unit.

AR20.40-P-5050OLI

6

Remove vent line (2) from radiator (1.1).

7

Remove coolant hoses (3) from radiator (1.1).

AR20.20-P-7441-01RQ

8

Remove coolant lines (4, 5) from high-voltage system radiator (1.2), unclip high-voltage system radiator (1.2) from air ducting (13) and remove downward.

AR20.20-P-7441-01RQ

9

Remove coolant lines (12) from low-temperature radiator (1.3).

AR20.20-P-7441-01RQ

10

Remove refrigerant lines (6, 7) from condenser (1.4).

11

Seal openings on condenser (1.4) and refrigerant lines (6, 7) using suitable stop plugs.

 Record plug

*129589009100

12

Remove air ducting (13).

13

Remove bracket (11) from radiator unit (1).

14

Release and disconnect electrical connection(9).

15

Secure radiator unit (1) using suitable means to prevent it from falling.

16

Guide radiator unit (1) out of the lower brackets.

17

Carefully remove radiator unit (1) downward and place on a suitable surface.


Make sure that radiator unit (1) is not left hanging and does not come into contact with other components.
Otherwise, radiator unit (1) may suffer damage and leaks.

 Aid of helper required.

18

Install in the reverse order.