Remove/install radiator

AR20.20-P-3865RM

Remove/install radiator

05.12.2018

Engine

275.981 in model 230.479

except code P99 (Special model "AMG Black Series")

1

Screw

9

Drain screw

4

Automatic oil line

2

Fan shroud

3, 6

Coolant hoses

8

Radiator

 

Remove/install

 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

 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

1

Open engine hood and raise to vertical position

AR88.40-P-1000R

2

Detach engine hood seal

3

Remove fan shroud (2)

AR20.40-P-6800AC

4

Open expansion reservoir cap for coolant

5

Detach low-temperature circuit line from front right longitudinal member

6

Remove lower engine compartment paneling

AR61.20-P-1105R

 Only front, center, left, and right section of the engine compartment lining.

7

Open drain screw (9) on radiator (8) and drain coolant

AR20.00-P-1142H

Notes on coolant level

AH20.00-P-1142-01CW

8

Remove screw (1) from the bracket of the refrigerant line on the cooler (8)

9

Detach bracket for the heater circulation pump (M13) from the right bottom cooler (8)

 Remove front screw from the bottom (only accessible if the low-temperature circuit line is placed to one side). Remove rear screw from the top (better accessibility).

10

Detach coolant hoses (3, 6) from radiator (8)

See "Disconnect Henn coupling".

AR09.41-P-1311-01AL

11

Detach automatic oil line (4) from the cooler (8)

 Seal automatic oil line.

 Union nut, automatic transmission oil line to radiator

*BA20.20-P-1001-01A

 Record plug

*129589009100

12.1

Release air inlet grille with a suitable tool and pull out of the bumper until the outside temperature display temperature sensor (B14) is accessible

In vehicles up to February 28, 2006

AR88.20-P-2000R

12.2

Remove radiator trim

In vehicles as of March 1, 2006

13.1

Disconnect cooler for low-temperature circuit from cooler (8)

For vehicles up to model year 2007

AR09.41-P-6935R

13.2

Detach cooler for low-temperature circuit/steering from cooler (8) and hang with connected lines

For vehicles as of model year 2008

AR09.41-P-6935RMB

14

Detach expansion reservoir coolant hose from top right cooler (8)

15

Remove radiator (8) in an upward direction

 Installation: Ensure that the bottom rubber mounts are seated correctly.

16

Install in the reverse order

17

Pour in coolant

AR20.00-P-1142H

 Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

18

Check oil level in automatic transmission, correct if necessary

AR27.00-P-0100AC

19

Check cooling system for leaktightness

AR20.00-P-1010HA

 Radiator, coolant hoses

Number

Designation

ENGINE 275

BA20.20-P-1001-01A

Union nut, automatic transmission oil line to radiator

Nm

25