2.0 Straightening Outer Skin

WARNING: This page does not describe the selected car, but rather 18 other vehicles, including the 2015 BMW Alpina B7L xDrive, 2015 BMW Alpina B7 xDrive, 2015 BMW 750i xDrive, 2015 BMW 750Li xDrive, and 2015 BMW 740Li xDrive. However, it is still accessible from the selected car via links, so may be relevant.

"Cold" straightening: Press dents out from their center and smooth in an outwards direction with gentle taps.
In the case of small, soft dents (hail and parking damage), this is also possible without damaging the paintwork. Special tools and a trained employee are needed.
"Hot" straightening: Heat the component in the damaged area with a hot air blower to approx. 60 °C. This significantly reduces the force that needs to be applied for straightening.
Avoid notching and cracking.
Avoid hardening and overstretching.
Avoid heating and excess temperature the outer skin over large areas.