AI4Car quick readA short, original guide from the AI4Car knowledge library.
New wiper blades that still leave streaks describes what the car is doing, not which component has failed. Similar behavior can come from a mechanical issue, an electrical connection, maintenance condition, or a control-system response.
Start with evidence you can verify: Clean the windscreen with a suitable product and check blade fit and arm pressure. Replace a part only when a test supports that decision.
Quick educational note
For information, not a diagnosis or repair instruction. Vehicle-specific checks are still required. Consult the manufacturer's guidance and a qualified technician.
How to use this information
This article explains general principles and does not establish what is wrong with your vehicle. Read the content limitations.