Making Ground Connection Using A Through Bolt

WARNING: This page is about a different car, the 2023 Porsche Taycan and 2022 Porsche Taycan. However, it is still accessible from the selected car via links, so may be relevant.

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Diagram

-A- > COUNTERSUNK SCREW 999.073.549.01

-B- > HEXAGON NUT 900.377.003.01

-C- Component 1

-D- Component 2

-E- Adhesive

-F- Sealing compound

Drill a hole. > Diameter 4 mm

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Drilling hole
Remove dirt and primer on both sides using an end brush > 9399/3 - end brush .

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Removing primer
Drill out the bore. > Diameter 8 mm

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Drilling out bore
De-burr the bore on both sides.
Fit countersunk screw through the bore and secure it with a hexagon nut. > COUNTERSUNK SCREW 999.073.549.01 > HEXAGON NUT 900.377.003.01
Tighten threaded joint to the specified torque. > Tightening torque 15 Nm (11 ftlb.)
Seal threaded joint.