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2026-10-28 · 3 min read

Nissan Serena C27 — AC Belt and Tensioner Replaced, Cooling Restored (Cheras)

Serena C27 from Cheras had intermittent aircond failure and engine-bay noise. AC belt was cracked and slipping, tensioner pulley noisy. Both replaced — steady cooling again.

Nissan Serena C27 — AC Belt and Tensioner Replaced, Cooling Restored (Cheras)

来自 Cheras 的 Nissan Serena C27 2.0 车主,反映冷气偶尔会突然变热,然后自己又变冷,同时引擎盖方向有轻微异响。

检查发现

冷气压缩机皮带(Accessory belt)老化,表面有裂纹,皮带轮打滑时导致压缩机间歇性停转。

皮带张紧轮轴承有轻微杂音。

雪种压力轻微偏低。

处理项目

更换冷气压缩机皮带

更换皮带张紧轮

补充雪种

运行测试确认冷气稳定制冷

完成结果

处理后冷气制冷稳定,异响消除。建议每 60,000 公里检查皮带状况,马来西亚高温环境下皮带老化较快,不要等皮带断掉才换。

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