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2026-11-03 · 4 min read

Mercedes-Benz C300 W205 — Front Lower Arms Replaced, Clunk Eliminated (Sri Hartamas)

C300 W205 from Sri Hartamas had a rubbery clunk when cornering or over bumps. Both front lower control arms replaced, wheel alignment corrected — steering precise again.

Mercedes-Benz C300 W205 — Front Lower Arms Replaced, Clunk Eliminated (Sri Hartamas)

Sri Hartamas 的 Mercedes-Benz C300 W205 车主,反映转弯或过减速带时前方有「嘎嘎」橡皮异响,停车时转动方向盘也有轻微声音。

诊断过程

举升车辆,摇晃前轮检查:发现前下摆臂外侧衬套(Front lower control arm bush)有明显间隙。

连接 XENTRY 读取故障码:无悬挂相关故障码,确认是机械磨损而非电子系统问题。

球头关节(Ball joint)正常,无松动。

更换项目

前左右下摆臂(整体更换,含衬套与球头)

四轮定位校正

完成结果

更换后异响立即消除,转向手感更精准。四轮定位校正后轮胎接地更均匀。建议每次保养时顺带检查摆臂衬套状况,大马路面坑洼多,衬套磨损比欧洲快。

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