A humming or growling noise in a Subaru is often blamed on a wheel bearing, but tyres and driveline components can sound remarkably similar.
Typical bearing symptoms
Noise often rises with road speed and may change with steering load, but those clues are not conclusive on every vehicle.
Other possible causes
Tyre cupping, differential noise, CV joints and driveline components can produce similar sounds.
Workshop diagnosis
A combination of road testing, wheel inspection and targeted checks helps isolate the source before parts are ordered.
Need your Subaru assessed?
If a symptom is already present, a workshop inspection is more useful than trying to diagnose the vehicle from a generic guide. Vehicle condition, engine/transmission type and fault data can change the answer.