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Retrofit Mechanical Detachable Parts For Fully Electric Swiveling Trailer Hitch - AN31.11-P-0010-04LWM

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Model 253.3/9 as of 6/1/19 

  Notes on safety-relevant components   AH00.00-Z-0019-01A
MODIFICATION NOTES

14.10.2019 Bolt, trailer hitch to longitudinal member reinforcement (short)   BA31.11-P-1001-01M
EXHAUST AFTERTREATMENT

Number Designation Engine 654 in model 253
BA14.40-P-1001-02E Bolt, AdBlue® tank to body Nm 23
TRAILER COUPLING MECHANISM

Number Designation Model 253
BA31.11-P-1001-01M Bolt, trailer hitch to longitudinal member reinforcement (short) M12 Nm 120
TRAILER COUPLING MECHANISM

Number Designation Model 253
BA31.11-P-1002-01M Longitudinal member reinforcement for trailer hitch (short) to body Nut M12 Nm 120
Bolt M12 Nm 125
TRAILER COUPLING MECHANISM

Number Designation Model 253
BA31.11-P-1003-01M Bolt, longitudinal member reinforcement for trailer hitch (long) to body M10 Nm 70
EXHAUST SYSTEM

Number Designation Engine 274 in model 253 Engine 276 in model 253
BA49.10-P-1012-02A Bolt, rear exhaust system bracket to body Nm 20 20
EXHAUST SYSTEM

Number Designation Model 253 with engine 264
BA49.10-P-1012-02P Bolt, bracket for suspension for rear exhaust system to body Nm -
EXHAUST SYSTEM

Number Designation Engine 177 in model 253
BA49.10-P-1013-02E Screw/nut, holder for exhaust system at rear to body/crossmember Nm 20
EXHAUST SYSTEM

Number Designation Model 253 with engine 654
BA49.10-P-1014-02H Bolt, bracket for suspension for rear exhaust system to body Nm 20
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1028-04A Assembly cleaner A 000 986 56 01
G14470209Courtesy of MERCEDES-BENZ USA
  1. Remove adhesive residue from the seals (arrows).

    IMPORTANT Use assembly cleaner.

    G12817510Courtesy of MERCEDES-BENZ USA
  2. Model 253.3/9 with code ME05 (Hybrid drive 85 kW-94 kW variant (incl. plug-in))

    Insert longitudinal member reinforcement (6) into left longitudinal frame member.

  3. Model 253.3/9 with code ME05 (Hybrid drive 85 kW-94 kW variant (incl. plug-in))

    Screw in screws/bolts (4) finger-tight.

    G12817511Courtesy of MERCEDES-BENZ USA
  4. Model 253.3/9 with code ME05 (Hybrid drive 85 kW-94 kW variant (incl. plug-in))

    Insert longitudinal member reinforcement (7) into right longitudinal frame member.

  5. Model 253.3/9 with code ME05 (Hybrid drive 85 kW-94 kW variant (incl. plug-in))

    Screw in screws/bolts (4) finger-tight.

    G12817512Courtesy of MERCEDES-BENZ USA
  6. Remove stop plug (8) from rear-end center section.

    IMPORTANT The stop plug (8) is no longer required.

  7. Insert left longitudinal member reinforcement (2) into left longitudinal frame member.
  8. Insert right longitudinal member reinforcement (3) into right longitudinal frame member.
    G12817513Courtesy of MERCEDES-BENZ USA
  9. Screw on screw/bolt (5) of right longitudinal member reinforcement (3) finger-tight.
  10. Screw on screw/bolt (5) of left longitudinal member reinforcement (2) finger-tight.
    G12817514Courtesy of MERCEDES-BENZ USA
  11. Tighten nuts (15) finger-tight.
    G12817515Courtesy of MERCEDES-BENZ USA
  12. Position trailer hitch crossmember (1) onto left and right longitudinal member reinforcements (2 and 3) and screw on screws (13) finger-tight.

    IMPORTANT Helper required.

  13. Align trailer hitch.
    G12817516Courtesy of MERCEDES-BENZ USA

    NOTES The sequence of operation steps described below must strictly be observed.

    In order to ensure that the trailer hitch is seated correctly.

  14. Model 253.9 with code ME05 (Hybrid drive 85 kW-94 kW variant (incl. plug-in))

    Tighten screws/bolts (4) to specified torque TORQUE SPECIFICATION .

    G12817511Courtesy of MERCEDES-BENZ USA
  15. Model 253.9 with code ME05 (Hybrid drive 85 kW-94 kW variant (incl. plug-in))

    Tighten screws/bolts (4) to specified torque TORQUE SPECIFICATION .

    G12817512Courtesy of MERCEDES-BENZ USA
  16. Tighten nuts (15) to specified torque TORQUE SPECIFICATION .
  17. 17.1  Model 253.3/9 as of 01.06.19 with engine 177

    Position screw (16) and tighten TORQUE SPECIFICATION .

    17.2  Model 253.3/9 as of 01.06.19 with engine 274 or engine 276

    Position screw (16) and tighten TORQUE SPECIFICATION .

    17.3  Model 253.3/9 as of 01.06.19 with engine 654 with code U77 (Diesel exhaust gas cleaning BLUETEC (SCR))

    Position screw (16) and tighten TORQUE SPECIFICATION .

    G12817532Courtesy of MERCEDES-BENZ USA
  18. 18.1 Model 253.3/9 as of 01.06.19 with engine 177

    Position screw (17) for rear muffler holder and tighten TORQUE SPECIFICATION .

    18.2  Model 253.3/9 as of 01.06.19 with engine 264

    Position screw (17) for rear muffler holder and tighten TORQUE SPECIFICATION .

    18.3  Model 253.3/9 as of 01.06.19 with engine 274 or engine 276

    Position screw (17) for rear muffler holder and tighten TORQUE SPECIFICATION .

    18.4  Model 253.3/9 as of 6/1/19 with engine 654

    Position screw (17) for rear muffler holder and tighten TORQUE SPECIFICATION .

    G12817532Courtesy of MERCEDES-BENZ USA
  19. Tighten screws/bolts (5) to specified torque TORQUE SPECIFICATION .
    G12817514Courtesy of MERCEDES-BENZ USA
  20. Tighten bolts (13) at left and right to torque TORQUE SPECIFICATION .
  21. Pass trailer hitch wiring harness (20) through rear-end center section into vehicle interior and install grommet provided.
    G12817516Courtesy of MERCEDES-BENZ USA
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