Cut Off Inner Part Of End Cross Member - Ar64.20-S-1120-01E

Model 447.7 

with code UR1 (Seat rail system with quick-release attachment system) 

Model 447.7 

with code UR3 (Seat mount with quick fastener (2 passenger seat rows)) 

Model 447.7 

with code UR6 (Rear seats with quick-release locks (1st row)) 

Model 447.7 

with code ZU4 (Production Argentina) 

Model 447.8 

Model 448.7 

with code UR1 (Seat rail system with quick-release attachment system) 

Model 448.7 

with code UR3 (Seat mount with quick fastener (2 passenger seat rows)) 

Model 448.8 

Courtesy of MERCEDES-BENZ USA

1. Expose spot welds on crossmember inner section (1) and cut out (areas A to D).
2. Expose spot welds on crossmember inner section (1) and cut out (areas E and F).

   Cut out spot welds through two sheet metal thicknesses (arrows).

3. Expose inert gas weld on crossmember inner section (1) and cut out (areas G and H).
4. Remove damaged crossmember inner section (1).

   Courtesy of MERCEDES-BENZ USA

5. Sand down mating surfaces to bare metal in crosshatched areas.

   Sand down spot weld flanges to bare metal on both sides.

6. Remove shavings and drill chips.
7. Coat insides of spot weld flanges with zinc dust paint.

Courtesy of MERCEDES-BENZ USA