Making ground connection using a rivet nut

WARNING: This page is about a different car, the 2016 Porsche Macan and 2015 Porsche Macan. However, it is still accessible from the selected car via links, so may be relevant.

Drill a hole. → Diameter: 4 mm

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Remove dirt and primer using an end brush end brush 9399/3 .

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Drill out the bore. → Diameter: 11 mm

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De-burr the bore on both sides.
Fit and tighten blind rivet nut. → BLIND RIVET NUT 999.500.196.01 Pop rivet nut pliers - V.A.G 1765 C WE 1476

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Screw on components using a countersunk screw.→ COUNTERSUNK SCREW 999.073.549.01
Tighten threaded joint to the specified torque. → Tightening torque: 15 Nm (11 ft. lb.)