Remove/install engine hood lifter

AR91.60-P-0900MFA

Remove/install engine hood lifter

11.02.2020

Model

118, 177, 247.6/7

with code U60 (Pedestrian protection - Active hood)

Shown on model 177.0 on left side of vehicle

3

Electrical connector

7

Nut

4

Plug housing

R12/49

Left active engine hood squib

5

Air/water duct cover

R12/50

Right active engine hood squib

6

Electrical line

 Warning

Risk of injury caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof.

No parts of the body or limbs should be within the operating area when the components are moving.

AS00.00-Z-0011-01A

 Warning

Risk of injury during testing and repair operations related to pyrotechnical components

Do not expose pyrotechnical component parts to temperatures above 100 °C or 212 °F. Disconnect current supply when working on such component parts.

AS91.00-Z-0008-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Information, assessment and legal requirements when working with, handling and storing pyrotechnical components

AH91.00-Z-0000-10A

Notes on safety-relevant components

AH00.00-Z-0019-01A



Check

1

Check engine hood hinges for deformation.

If the left active hood squib (R12/49) or right active hood squib (R12/50) has triggered.

If deformation is found,



replace left and right hinges on hood.

Model 247.6/7
with code U60 (Pedestrian protection - Active hood)

AR88.40-P-3061MFB

Model 118, 177
with code U60 (Pedestrian protection - Active hood)

AR88.40-P-3061MFA

2

Remove pedestrian protection sensor and check for damage or deformation.

If the left active hood squib (R12/49) or right active hood squib (R12/50) has triggered.

Topical note

General information on the impact absorber

AH88.20-P-1000-01A

AR91.60-P-0950MFA

If damage or deformation is found



replace impact absorber and pedestrian protection sensor.

AR91.60-P-0950MFA

 

Remove/install

3

Detach ground line of on-board electrical system battery.

AR54.10-P-0003MFA

4

Release and disconnect electrical connector (3) then remove plug housing (4) from air/water duct cover (5).

5

Remove electric line (6) from air/water duct cover (5).

6

Remove nut (7).

 Screw/nut, hood lifter to body

*BA91.60-P-1002-02A

7

Remove left active hood squib (R12/49) or right active hood squib (R12/50).

8

Install in the reverse order.



Check

9

Connect vehicle diagnosis system and check Supplemental Restraint System (SRS).



AD00.00-P-2000-06MFA

 Engine hood lifter

Number

Designation

Model 118

Model 177

BA91.60-P-1002-02A

Screw/nut, hood lifter to body

Nm

6

7

 Engine hood lifter

Number

Designation

Model 247

BA91.60-P-1002-02A

Screw/nut, hood lifter to body

Nm

6