Dealer Maintained And This Volvo Twin-Charged Engine STILL Failed at JUST 125,000 Miles!

Today we examine a 2016 Volvo XC90's B4204T27 Twin‑Charged 2.0L engine that failed at 125,000 miles despite a meticulous service history. The video walks through a complete teardown, revealing the root cause of the failure. At 00:00 the host introduces the engine and the purpose of the video. At 03:15 the engine’s idle is inspected without spark plugs. At 04:06 a quick look inside the intake ports shows contamination. At 04:30 the supercharger is removed and inspected. At 05:46 the turbocharger is taken off, revealing a problem. At 07:15 the turbo is inspected further. At 07:57 the crank pulley is removed to check timing. At 09:50 the timing belt and pulleys are peeled off, appearing original. At 12:25 the fuel rail is unbolted but cannot be removed. At 14:22 the valve cover bolts are found loose. At 14:56 a blow‑out is observed. At 15:26 a close look at the cams, bearings, lifters, and valve cover is shown. At 17:48 the head bolts are cracked. At 18:35 the cylinder head is lifted, revealing suspicions. At 19:18 a scientific analysis is performed. At 19:40 a key discovery is highlighted. At 20:41 business ethics are discussed. At 22:33 the oil pan is unbolted. At 24:31 the oil pump is removed. At 26:50 the balance shaft cartridge is pulled. At 27:24 the rod cap bolts are cracked and all four rods and pistons are removed. At 28:29 the bedplate is unbolted to split the block and remove the crank. At 29:51 the crankshaft is extracted. At 29:54 a complete rotating assembly inspection is conducted, revealing familiar wear. At 33:17 the supercharger is disassembled again, inspecting the clutch. At 36:25 a summary of findings is presented. As always I hope you enjoyed this video, I love all of the comments, feedback and even the criticism. Catch you on the next one!