BMW Specific problems:
- water pump will fail without warning
- oil filter housing gasket will leak
- valve cover gasket will leak
- valve cover may crack
- oil pan gasket will leak
- assume any weird electrical issue, starting issue, etc is a weak battery
Z4 specific problems
- rear cargo cover may have a broken sensors/switches that prevent the top from working
- wire harness in the hinge inside the cabin may break
- hydraulic hose in the hinge inside the cabin may leak
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