Can a bad battery in your car make it smell like vinegar?

A car battery in poor condition can emit a rotten egg or sulfurous smell, but not a vinegar smell. A potential source of a vinegar-like smell in a car could be a coolant leak, particularly if it is leaking onto hot engine components. Coolant typically has a sweet odor and can emit a vinegary smell when overheated or burned off. It's important to inspect your car for any signs of coolant leaks or other potential sources of the smell and address them promptly. If the smell persists or you're unsure of the cause, it's best to have your vehicle inspected by a professional mechanic.