Mercedes S600 V12 Full Engine Rebuild – From Loud Knocking to Smooth Running

A first-owner Mercedes S600 with a mighty V12 engine came in with severe problems — loud knocking, burning 1 liter of oil every 500 km, and a completely worn-out set of pistons. The coolant had dried up, sludge had built up inside, and every cylinder was badly scored.

In this video, we perform a complete engine teardown, diagnose the root cause, replace the damaged components, and restore the S600 to its former glory. Watch as this luxury sedan goes from a rough, noisy mess to a smooth, powerful machine once again.

Chapters:
00:00 – Initial inspection
01:10 – Engine teardown & damage assessment
05:40 – Sludge removal & cleaning
08:30 – Cylinder wall & piston wear
09:00 – Root cause of engine failure
17:20 – Reassembled engine test run
23:10 – Final touches & interior repairs