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Clunk from the front over speed bumps
尽快预约维修。今天无需停驶。
涉及车型年份: 2014-2025
症状
- Single dull knock from a front corner as the wheel drops off a speed bump
- Knock on rough road at low speed, quiet on smooth highway
- Steering feels vague or clicks slightly when turning at parking speed
- Noise worse with a passenger in the car or a full boot
原因
The front strut mount and its bearing sit at the top of each strut and take the road load into the body. The rubber in the mount perishes, and the bearing dries out, so the strut can move a millimetre or two and knock. The Iriz carries a lot of weight on the front axle for a small hatch, and Malaysian road surfaces speed the process up.
解决方案
Have the workshop check both front strut mounts and bearings, not one. If the mount rubber is cracked or the bearing feels rough when the strut is out, replace the pair. Ask for the mount and bearing to be quoted separately from the strut, because the strut often does not need replacing. An alignment after the job is normal and should be in the quote.
配件与工时 · 未注明日期
Front end clunks get misdiagnosed as worn struts, and owners pay for a pair of struts when two rubber mounts would have fixed it. The mount is the cheap half of the job.
If the car also floats or bounces twice after a dip, the struts are genuinely tired. That is the point to replace struts and mounts together.
社区笔记
Malaysian sellers list Proton and KYB front mountings specifically for the Iriz and Persona VVT, as a pair, and quotes for the pair plus bearings and labour land around RM350 to RM500 with alignment. A knock that only appears when the steering is turned at parking speed is the bearing, not the mount. Do not accept a quote for a full strut replacement off one clunk.
相关配件
- Front Strut Mounting Kit(PW923488)