Remove/install front module

AR88.30-P-1064MFA

Remove/install front module

22.01.2020

Model

118, 177, 247.0 with engine 260, 282, 608, 654

Modification notes

15.01.2020

Method adapted.

Shown on model 177

1

Engine air intake duct

16

Electrical connector

2

Bracket

17

Bracket

3

Screw

B48/1

Left frontal acceleration sensor

14

Screw

B48/2

Right frontal acceleration sensor

15

Screw

Shown on model 177 with code 228 (Auxiliary heating)

13

Bolts

A6

Stationary heater unit

Shown on model 177

4

Electrical connector

9

Bolts

5

Electrical connector

10

Electrical connector

6

Electrical connector

11

Screw

7

Electrical connectors

12

Bolts

8

Electrical line

Shown on model 177

12

Bolts

 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

 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

Topical note

Note on damage to lamp unit

AH82.10-P-0002-00LW

Topical note

General information on the impact absorber

AH88.20-P-1000-01A

Topical note

Notes on preventing damage to electronic components due to a magnetic tool

AH54.00-P-0002-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Notes on safety-relevant components

AH00.00-Z-0019-01A

 

Remove/install

1

Detach ground line of on-board electrical system battery.

AR54.10-P-0003MFA

2

Remove engine air intake duct (1).

3

Unscrew screws (14) and remove brackets (2).

4

Disconnect electrical connector (16) at left frontal acceleration sensor (B48/1) and at right frontal acceleration sensor (B48/2).

5

Remove bracket (17) from front module.

6

Remove screw/bolts (3).

7

Unclip center hood contact switch, detach hood cable and place to one side.

AR88.40-P-3201MFA

8

Remove front wheel and tire assembly.

AR40.10-P-1102MFA

9

Remove bottom engine compartment paneling.

Model 118 with engine 608, 654
Model 177 with engine 608, 654
Model 247.0 with engine 608, 654

AR61.20-P-1105MFE

Model 118, 177, 247.0 with engine 260, 282

AR61.20-P-1105MFA

10

Remove left and right front section of the fender liner.

AR88.10-P-1301MFA

11

Remove washer fluid reservoir from the brackets and fasten with connected lines free of tension to the vehicle.

AR82.35-P-6000MFA

12

Release and disconnect electrical connectors (4, 5, 6).

13

Unscrew bolts (13).

Model 118, 177, 247.0 with engine 260, 282, 608, 654
with code 228 (Additional warm water heating)

 Screws, heater bracket to body

*BA83.70-P-1003-02F

14

Remove screw/bolts (15).

15

Remove stationary heater unit (A6) with bracket from vehicle, place to one side with connected lines and secure against falling down with suitable means.

Model 118, 177, 247.0 with engine 260, 282, 608, 654
with code 228 (Additional warm water heating)

16

Release, disconnect electrical connectors (7) and unclip from front bumper.

 The number of electrical connectors (7) varies depending on the vehicle equipment.

 Dismantling tool

*000589956300

17

Unclip electric line (8) at front bumper.

 Dismantling tool

*000589956300

18

Release and disconnect electrical connectors (10).

19

Remove bolts (12) at front bumper.

20

Remove screws (9).

 Bolt, impact absorber/mounting support to longitudinal member

*BA62.30-P-1002-02O

21

Remove screws (11).

 Bolt, assembly carrier at bottom to mounting support

*BA62.30-P-1008-02O

22

Remove front module from the vehicle and place on a suitable base.

 Remove front module with front bumper and headlamp units.
Aid of helper required.

23

Install in the reverse order.

24

Check headlamp adjustment and correct if necessary.



Model 177 with engine 260, 282, 608, 654

AP82.10-P-8260N



Model 118 with engine 260, 282, 608, 654

AP82.10-P-8260Y



Model 247.0 with engine 260, 282, 608, 654

AP82.10-P-8260AO

25.1

Calibrate front long-range radar sensor with diagnostic system.

Model 118, 177, 247.0 with engine 260, 282, 608, 654
with code 233 (Adaptive cruise control Plus (DISTRONIC PLUS))



AD00.00-P-2000-06MFA

25.2

Calibrate short and long-range radar sensor with the diagnostic system.

Model 118, 177, 247.0 with engine 260, 282, 608, 654
with code 239 (Adaptive cruise control Pro (DISTRONIC PRO))
Model 118, 177, 247.0 with engine 260, 282, 608, 654
with code 258 (Active Brake Assist System)



AD00.00-P-2000-06MFA

26

Calibrate front 360° camera with diagnostic system.

Model 118, 177, 247.0 with engine 260, 282, 608, 654
with code 501 (360° camera)



AD00.00-P-2000-06MFA

 Frond end with front reinforcement

Number

Designation

Model 118

Model 177

BA62.30-P-1002-02O

Bolt, impact absorber/mounting support to longitudinal member

M12

Nm

125

128

 Frond end with front reinforcement

Number

Designation

Model 247

BA62.30-P-1002-02O

Bolt, impact absorber/mounting support to longitudinal member

M12

Nm

125

 Frond end with front reinforcement

Number

Designation

Model 118

Model 177

BA62.30-P-1008-02O

Bolt, assembly carrier at bottom to mounting support

M6

Nm

8

4

 Frond end with front reinforcement

Number

Designation

Model 247

BA62.30-P-1008-02O

Bolt, assembly carrier at bottom to mounting support

M6

Nm

4

 Heater booster unit

Number

Designation

Model 118

Model 177

BA83.70-P-1003-02F

Screws, heater bracket to body

Nm

8

8

 Heater booster unit

Number

Designation

Model 247

BA83.70-P-1003-02F

Screws, heater bracket to body

Nm

8