What Technicians Inspect First on High-Mileage BMW Engines

Close-up view of a high-mileage BMW engine compartment highlighting the oil filter housing gasket and composite cooling components.

High-mileage BMW inline-six and V8 engines require focused physical and electronic diagnostics to prevent catastrophic failure. Priority inspection areas include thermal-fatigued plastic cooling lines, calcified oil filter housing gaskets (OFHG) that threaten front main seals, VANOS solenoid screen restriction, ruptured integrated valve cover PCV diaphragms, and cracked rubber guibos. Short stop-and-go commutes along the damp […]