What is the torque specification standard for Volkswagen vehicles?

[SanSebastian]

Automotive cylinder head connecting rod cap crankshaft cap bolts have a torque of 8 for the main bearing cap and 6 for the small bearing cap. The compression ratios of engines vary by model, so the bolt torque specifications also differ. The standard torque specifications for Volkswagen vehicles are as follows: 1. Class A: Iron screws fixed with iron nuts (threaded holes). For example: assembly of various components in the housing; grounding screws and nuts. 2. Class B: Iron screws with copper nuts (threaded holes and aluminum alloy threaded holes). For example: fixing transistors or wire terminals on aluminum heat sinks; fixing aluminum heat sinks on PCBs; fixing screws for large capacitors or transistor terminals; fixing RS-232 hexagonal copper pillars. 3. Class C: Iron screws locked into plastic holes. For example: fixing plastic panels to the housing; fixing PCBs on plastic panels. 4. Class D: Iron screws locked into tapped holes with a plate thickness of 1.0.