Mass Movement Sensor Module (MMS) Alarm, Adjusting (36-0026)

MASS MOVEMENT SENSOR MODULE (MMS) ALARM, ADJUSTING

TECHNICAL SERVICE BULLETIN

BACKGROUND

This Service Bulletin describes how to reduce the risk of false alarms caused by torrential rain.

Competence requirement 

Volvo Level 1 Technician

Description	Quantity	Part Number
Service kit	1	30682702

AUTOMATIC MONITORING

False alarm, reduction 

1. Preparatory work

   Open the sun roof completely (see Fig 1 ).

   Fig 1: Opening Sunroof

   
2. Removing the lens, interior lighting (see Fig 2 )

   Fold down the cover (1).

   Press the clips (2) outwards. Remove the lens.

   Fig 2: Removing Lens

   
3. Removing the cover (see Fig 3 )

   Open the clips (2, 3). Remove the cover (1).

   Fig 3: Removing Cover

   
4. Removing the molding (see Fig 4 )

   Remove the molding around the front edge and short sides of the sun roof.

   Pull the short sides of the trim towards the center so that the two front corners loosen.

   Leave the trim hanging at the rear edge.

   Fig 4: Removing Molding

   
5. Removing the trim, continued

   Roll up two balls of paper or other clean material.

   Stuff the balls between the headlining and the roof as illustrated (see Fig 5 ).

   NOTE: Do not damage or crease the headlining
   Fig 5: Stuffing Balls Between Headlining & Roof

   
6. Removing the mass movement sensor (see Fig 6 )

   Remove the black installation tape. Discard the installation tape.

   Carefully remove the mass movement sensor and remove the connector.

   Remove the old adhesive residue. Roll it with your fingers.

   Fig 6: Removing Mass Movement Sensor

   
7. Installing the felt tape

   Install 2 pieces of felt tape on the interior lighting. Bend over the edge as illustrated (see Fig 7 ).

   Fig 7: Installing Felt Tape

   
8. Installing the mass movement sensor, preparatory work

   Fill in the two markings on the headlining using a pencil so that they are easier to see (see Fig 8 ).

   NOTE: Do not use a ball point or permanent marker pen. These can discolor the headlining.
   Fig 8: Filling In Markings

   
9. Installing the mass movement sensor (see Fig 9 )

   Place double-sided adhesive tape on the underside of the mass movement sensor. Position a 9 mm drill bit as a spacer along the edge. Install the mass movement sensor exactly according to the markings on the headlining. Press into place for approximately 15 seconds.

   Connect the connector.

   NOTE: Note the bulge on the left hand side of the mass movement sensor and the position of the drill. It is important that the position of the mass movement sensor is correct.

   Remove the drill bit.

   Fig 9: Installing Mass Movement Sensor

   
10. Installing the foil tape (see Fig 10 )

    Mark the center of the foil tape and the mass movement sensor. Remove the backing paper at one corner of the foil tape.

    Position the foil tape behind the mass movement sensor, as close as possible without the tape being underneath the mass movement sensor. Press the foil tape into position and remove the backing paper as the foil is pushed into place.

    Hint:  Do not remove all the backing paper at the same time. The foil tape becomes very difficult to handle.

    Fig 10: Installing Foil Tape

    
11. Removing excess foil tape (see Fig 11 )

    Cut off excess foil tape. Discard the excess foil tape.

    Fig 11: Removing Excess Tape

    
12. Installing the trim strip (see Fig 12 )

    Remove the paper balls. Reinstall the trim strip around the sunroof. Start by pressing the two front corners of the trim strip into place. Continue with the rest of the time strip.

    Fig 12: Installing Trim Strip

    
13. Installing the interior lighting

    Reinstall the cover (see Fig 3 ).

14. Installing the lens (see Fig 2 )

    Install the lens. Ensure that the clips (2) snap into place.

    Install the cover (1).

    Close the sun roof.

WARRANTY STATEMENT  : Claims may be submitted under the New Car Warranty when there is a documented customer complaint, using claim type 01.

Operation No.	Labor Description	Time Allowance
36941-2	Mass movement sensor module (MMS) alarm, adjusting	---