Replace the rivet nuts in the exhaust manifold. - AR49.10-P-5531-01DA
WARNING: This page does not describe the selected car, but rather 25 other vehicles, including the 2007 Mercedes-Benz C350, 2007 Mercedes-Benz C280, 2007 Mercedes-Benz C230, 2006 Mercedes-Benz C55, and 2006 Mercedes-Benz C350. However, it is still accessible from the selected car via links, so may be relevant.
- Hammer rivet nuts with a suitable bolt (arrow) out of exhaust manifold bores.
Only screw bolt into rivet nut by hand.
- Insert new rivet bushes into exhaust manifold bore.
Screw cocking bolt into rivet nut and tighten.
Unscrew cocking bolt.