What Causes BMW Wiper Blades to Shake?
2 Answers
Introduction to the causes of BMW wiper blade shaking: Presence of debris or foreign objects on wiper blades or windshield surface: When the wiper moves to certain positions, the resistance increases significantly, causing shaking. Aging or hardening of wiper blades: Worn or hardened wiper blades fail to maintain proper contact with the windshield. Uneven contact surface with windshield: Some rubber strips are heavily pressed against the surface while others bear minimal force, resulting in uneven pressure distribution during wiper movement that causes localized shaking. Improper fixation to the wiper arm shaft: This causes the wiper blade to contact the lower part of the windshield, leading to shaking and abnormal noises. Adjusting the arm position can resolve this issue. It may also occur if the arm isn't perfectly parallel to the windshield.
I've driven a BMW for over three years, and the wiper judder issue is really annoying. Common causes include aged or deformed wiper rubber blades—hardened rubber can't clean properly and causes skipping; oil film, tree sap, or bird droppings left uncleaned on the windshield can also make wipers slip and judder; uneven pressure from the wiper arm or aged springs may prevent the rubber from tightly adhering to the glass; or it could be due to worn or deformed linkage mechanisms, which require professional inspection. I recommend replacing wiper blades every six months and focusing on cleaning the edges of the windshield during car washes to effectively prevent judder. Never use cheap products—low-quality rubber blades deform more easily.
