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What are the symptoms of a faulty BMW differential?

1 Answers

Millie

07/29/25 4:42pm

BMW differential failure symptoms include abnormal vehicle noises; a jerky sensation during acceleration or deceleration; and significant resistance when turning. If the differential is severely damaged, the two drive half-shafts will be nearly rigidly connected, causing the left and right wheels to rotate at the same speed (making turning impossible) and potentially even rendering the car undrivable. Below is an introduction to the differential: 1. Differential composition: The automotive differential is a mechanism that allows the left and right (or front and rear) drive wheels to rotate at different speeds. It mainly consists of left and right half-shaft gears, two planetary gears, and a gear carrier. 2. Differential function: The differential's function is to enable the left and right wheels to roll at different speeds when the car is turning or driving on uneven surfaces, ensuring that both drive wheels perform pure rolling motion.

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