BMW 7 Series: Auxil. Heater With Control Elements

 Check BMW Diagnosis System For Excess Pressure And Vacuum (N63)

IMPORTANT: Excess pressure and vacuum lines are identified by the size of the connection fittings and color-coded red and blue and must not be mixed up with each other. Build up pressure with Blue color. Generate vacuum pressure with Red color. Mixing up the functions will result in damage to th

 Releasing Bonded Folded Seam Connections

Fig. 51: Releasing Bonded Folded Seam Connections Remove area (1) of bead edge on wheel arch bend with a one-hand angle grinder and rough grinding wheel. Heat area (2) with hot air blower. CAUTION: Extract vapors and gases. Release connection flange with chisel. Grind adhesive residue (4)