LEMON Manuals: Even more car manuals for everyone
Home >> Mercedes Benz >> 2016 >> Metris Van Cargo >> Repair and Diagnosis >> Body & Frame >> Sun Roof/T-Top/Convertible Top >> Sliding Roof, Soft Top, Top Attachments -- 447 Chassis >> Basic Knowledge >> Panoramic Sliding Sunroof Drive Unit, Basic Function - GF77.21-S-2002A

Panoramic Sliding Sunroof Drive Unit, Basic Function - GF77.21-S-2002A

Model All (Light transporter) 

With Code D34 (Automatic panoramic sliding sunroof) 

Overview 

This document contains information on:

Sample illustration for vehicles with separate drive unit 

G16501488Courtesy of MERCEDES-BENZ USA

Sample illustration for vehicles with integrated drive unit 

G16501489Courtesy of MERCEDES-BENZ USA

General 

Depending on the vehicle, the panoramic sliding sunroof drive unit (1) is either a separate component part or forms a unit together with the panoramic sliding sunroof control unit.

The panoramic sliding sunroof drive unit (1)/panoramic sliding sunroof control module (2) is located on the front roof frame.

Vehicles with separate drive unit 

The separate panoramic sliding sunroof control unit actuates the electric motor for the panoramic sliding sunroof (1.1) in the panoramic sliding sunroof drive unit (1).

Vehicles with integrated drive unit 

The panoramic sliding sunroof control unit in the panoramic sliding sunroof control module (2) actuates the electric motor for the panoramic sliding sunroof (1.1).

Function 

The following elements are integrated in the panoramic sliding sunroof drive unit (1):

The redirecting transmission of the panoramic sliding sunroof converts the rotating motion of the electric motor for the panoramic sliding sunroof (1.1) into a longitudinal motion. This changes the position of the sliding sunroof panel of the panoramic sliding sunroof. The installed Hall sensors record the motor speed and the position of the sliding sunroof panel.

  Function schema     
  Function schema, open/close panoramic sliding sunroof Model 447 with code D34 (Automatic panoramic sliding sunroof) with code XM7 (MOPF II)  
  Component descriptions     
  Panoramic sliding roof system drive unit, component description Model 447
with code D34 (Automatic panoramic sliding
sunroof)
with code XM7 (MOPF II)
GF77.20-S-5213A