WELDING IN REINFORCEMENT PLATE (SHEET STEEL) - (530i 2017-2022, 530i xDrive 2017-2022, 530e PHEV 2018-2022, 530e xDrive PHEV 2018-2022, 540i 2017-2022, 540i xDrive 2017-2022, M550i xDrive 2018-2022)
In the case of a partial replacement piece, a body part is cut at a point described in the repair instructions.
A reinforcement plate is welded in to ensure sufficient strength.
Comply with notes on WELDING OF STEEL COMPONENTS .
Mark component in accordance with dimension A and cut.
Cut new part (1) in accordance with cut and, if necessary, adjust to fit with set of alignment brackets or universal fixture.
Installation note:
Leave a space on the separating cut of about one to max. two material thicknesses to ensure the weld with the reinforcement plate and allow for adjusting.
Clean the connection areas (1) at the new part and (2) at the body each at the inner and outer sides.
Coat the insides with a layer of welding primer.
Drill holes (1) and (2) at a distance of 25 mm apart.
Drill diameter: about 8 mm.
Cut the reinforcement plate (1) out of the new part trim.
Cut out additional reinforcement plates as needed.
The length of the reinforcement plate is at least 40 millimeters.
Coat reinforcement plates (1) and (2) on both sides with welding primer.
Carefully slide reinforcement plate (1) half-way into component on the body and plug weld (2).
If necessary, adjust new part (1) to fit with alignment bracket or universal fixture and plug weld (2).
MAG weld the joints (3).
Sand and clean the weld seam and plug weld.
In visible areas of the outer skin and on the carrier support, areas that have been ground should be washed/tinned.
Do not wash/tin any areas covered by covers on the vehicle.
European used-vehicle regulations prohibit the use of tin containing lead in cars introduced after 01.07.2003!
