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2026-08-19 · 4 min read

BMW F10 520d Oil Leak Fixed — Valve Cover Gasket & Gearbox Seal

A 2013 BMW 520d with oil stains under the car — valve cover gasket hardened, right gearbox output seal weeping. Both replaced in one visit.

BMW F10 520d Oil Leak Fixed — Valve Cover Gasket & Gearbox Seal

这辆 2013 BMW 520d(F10 N47 引擎),里程约 13 万公里,车主发现停车位地下有油渍,担心是引擎或变速箱漏油。

检查发现

气门盖垫片(Valve cover gasket)已硬化裂开,机油从顶部渗出。

自动变速箱右输出油封轻微渗油。

机油量偏低约 0.5L(建议每月检查机油量)。

维修项目

更换气门盖垫片(含进气凸轮轴油封)

更换变速箱输出油封(右侧)

补充机油至标准量

清洗引擎外部油污

完成与建议

维修后渗油消除,地面干净。建议车主每月检查机油量,若下次机油消耗异常快,可能需要进一步检查活塞环。

BMW 漏油早处理更省钱

发现地上油渍别等,越久油封越难拆、污染越多范围。4M CARCARE 维修各系列 BMW,来店先检查、后报价,不乱加项目。

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