Remove/install condenser

AR83.30-P-6540MFA

Remove/install condenser

21.02.2020

Model

118, 177, 247 with engine 260

with code 2U8 (Alternative refrigerant)

except code 2U1 (Radiator shutter)

Model

118, 177, 247 with engine 282

with code 2U8 (Alternative refrigerant)

except code 2U1 (Radiator shutter)

except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))

Shown on model 177 with engine 282

1

Air duct segment

4

Electrical connector

2

Air duct segment

5

Impact absorber

3

Intake-air duct

17

Cross member

Shown on model 177 with engine 282

6

Screw

9

Screw

12

Electrical connector

7

Bracket

10

Screw

13

Bolts

8

Screw

11

Bracket

17

Cross member

Shown on model 177 with engine 282

14

Air duct segment

16

Condenser

15

Nuts

Shown on engine 260 with code M016 (performance-enhanced engine)

27

Bolts

28

Bracket

Shown on engine 260 with code M016 (performance-enhanced engine)

29

Refrigerant line

30

Bracket

31

Electrical line

 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

 Danger

Risk of explosion caused by welding or soldering work on closed air conditioning system. Risk of poisoning caused by inhaling overheated refrigerant vapors. Risk of injury to skin and eyes caused by contact with liquid refrigerant.

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 areas. Carry out repair work on the air conditioning system circuit only after the system has been drained.

AS83.00-Z-0001-01A

 Warning

Risk of poisoning caused by inhaling overheated refrigerant vapors from an air conditioning system containing R134a. Risk of injury to skin and eyes caused by contact with liquid R134a refrigerant and when working on pressurized parts

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-0006-01A

 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 threaded connections fastened using a tightening angle-based tightening process

AH00.00-P-0020-01A

Topical note

General information on the impact absorber

AH88.20-P-1000-01A

Topical note

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

AH83.30-N-0005-01A

Topical note

Procedure for a damaged or leaky air conditioning system

AH83.30-N-0004-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

Topical note

Notes on pedestrian protection sensor

Model 118, 177, 247 with engine 260
with code 2U8 (Alternative refrigerant)
with code U60 (Pedestrian protection - Active hood)
except code 2U1 (Radiator shutter)
Model 118, 177, 247 with engine 282
with code 2U8 (Alternative refrigerant)
with code U60 (Pedestrian protection - Active hood)
except code 2U1 (Radiator shutter)
except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))

AH91.60-P-0001-01A

Notes on handling refrigerant R1234yf

AH83.30-P-0003-02A

 

Remove/install

1

Discharge air conditioning system.

AR83.30-P-1760MFA

2

Remove front bumper.

AR88.20-P-2000MFA

3

Remove left headlamp.

AR82.10-P-4733MFA

4

Remove air duct segment (1).

5

Remove air duct segment (2).

6

Remove intake air duct (3).

 The number of intake air ducts (3) is dependent on the vehicle equipment.

7

Release and disconnect electrical connectors (4) at left and right.

Model 118, 177, 247 with engine 260
with code 2U8 (Alternative refrigerant)
with code U60 (Pedestrian protection - Active hood)
except code 2U1 (Radiator shutter)
Model 118, 177, 247 with engine 282
with code 2U8 (Alternative refrigerant)
with code U60 (Pedestrian protection - Active hood)
except code 2U1 (Radiator shutter)
except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))

8

Remove impact absorber (5).

9

Remove screws (6) and remove lower holder (7).

10

Remove screws (8, 9, 10) at left and right and remove upper holder (11).

 Installation: Check for correct seating of the washer for the screw (8) on the crossmember (17).

11

Unclip electrical wiring harness from crossmember (17).

If installed.


Do not crush or kink or subject lines to tension.
Otherwise, the electric lines will be damaged.

 Installation: Route electrical wiring harness along original fastening points.

12

Release and disconnect electrical connectors (12) at horn on left and right.

13

Remove screws (27), remove holder (28) from crossmember (17) and place to one side.

Model 118, 177, 247 with engine 260
with code 2U8 (Alternative refrigerant)
with code M016 (Uprated engine)
except code 2U1 (Radiator shutter)

14

Remove screws (13) at left and right and remove crossmember (17).

 Installation: Install new screw/bolts (13).

 Bolt, impact absorber to cross member

*BA62.30-P-1001-02O

15

Open holder (30) of refrigerant line (29).

Model 118, 177, 247 with engine 260
with code 2U8 (Alternative refrigerant)
with code M016 (Uprated engine)
except code 2U1 (Radiator shutter)

16.1

Unclip air duct segments (14) at left and right on charge air cooler and remove.

Model 118, 177, 247 with engine 260
with code 2U8 (Alternative refrigerant)
except code 2U1 (Radiator shutter)
except code M016 (Uprated engine)
Model 118, 177, 247 with engine 282
with code 2U8 (Alternative refrigerant)
except code 2U1 (Radiator shutter)
except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))

16.2

Unclip air duct segments (14) at left and right from low-temperature circuit cooler and remove.

Model 118, 177, 247 with engine 260
with code 2U8 (Alternative refrigerant)
with code M016 (Uprated engine)
except code 2U1 (Radiator shutter)

17

Remove lower air duct segment.

18

Remove nuts (15), remove refrigerant lines from condenser (16) and seal openings using suitable stop plugs.



Compressor oils (specification 362.1)

BB00.40-P-0362-01A

 Installation: Install new sealing rings.

 Installation: Moisten sealing rings with compressor oil.

 Nut, refrigerant line to condenser

*BA83.30-P-1007-01T

 Record plug

*129589009100

19.1

Unclip condenser (16) at charge air cooler (arrows).

Model 118, 177, 247 with engine 260
with code 2U8 (Alternative refrigerant)
except code 2U1 (Radiator shutter)
except code M016 (Uprated engine)
Model 118, 177, 247 with engine 282
with code 2U8 (Alternative refrigerant)
except code 2U1 (Radiator shutter)
except code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN))

19.2

Unclip condenser (16) from low-temperature circuit cooler (arrows).

Model 118, 177, 247 with engine 260
with code 2U8 (Alternative refrigerant)
with code M016 (Uprated engine)
except code 2U1 (Radiator shutter)

20

Remove condenser (16).

21

Check condenser (16) for damage.

If there are problems,



Replace condenser (16).

22

Install in the reverse order.



Check

 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

23

Perform engine test run. While doing so, check engine for proper operation and leak tightness.

 Frond end with front reinforcement

Number

Designation

Model 118

Model 177

BA62.30-P-1001-02O

Bolt, impact absorber to cross member

M10

Stage 1

Nm

28

28

Stage 2

°

135

135

 Frond end with front reinforcement

Number

Designation

Model 247

BA62.30-P-1001-02O

Bolt, impact absorber to cross member

M10

Stage 1

Nm

28

Stage 2

°

135

 Air conditioning

Number

Designation

Model 118

Model 177

BA83.30-P-1007-01T

Nut, refrigerant line to condenser

M6

Nm

12

12

 Air conditioning

Number

Designation

Model 247

BA83.30-P-1007-01T

Nut, refrigerant line to condenser

M6

Nm

12