宝马730Li减速时车身剧烈见动
车型:配置N52发动机。
行驶里程: 133136km。
故障现象:车辆在80km/h以 上减速时车身剧烈晃动。
故障诊断:此车为后部肇事，车辆行驶至80kmh以上的时候，减速时车身剧烈晃动。试车，发现车辆加速的时候切正常， 加速至80kmh时，松开加速踏板故障出现，车身剧烈晃动。根据经验，故障现象出现的时候，应该是传动系统导致的车身晃动。
连接GT1进行快速检测，DME、 EGS均无故障。
将车辆升起，拆下排气管、隔热板，检查传动轴、过桥轴承是否有损坏，-切正常。模拟故障现象，将车辆升起且关闭DSC加速至80km/h时减速，故障出现，车身晃动，左后轮相比右后轮跳动厉害。这次将左后轮固定住不让转动(有保护措施)，使左后轮退出工作。再测试，这次减速时故障现象没有再次出现。怀疑是差速器或半轴损坏，装上相同型号的差速器和半轴再次试车，故障依旧。
最后安装了其他车的两条轮胎试车，故障没有了。至此，故障范围终于缩小到轮胎上，动平衡两条后轮胎，发现有一条始终动平衡不了。于是将轮胎扒开，发现轮胎里面有大约1L多的水。故障根源找到了清除轮胎里面的积水，再次试车，故障完全消除。
故障总结:该车钢圈有喷漆作业，由于在作业时没做好防护工作，导致轮胎内部存有大量的积水，安装时没有认真检查，直接充气后就装车，才出现了这样的“人造故障”。所以，在对钢圈喷漆作业的时候，定 要钢圈和轮胎分离。彻底避免类似故障的发生。
原创文章，作者：cesifu，如若转载，请注明出处：http://www.cesifu.com/article/18859.html
微信扫一扫 
支付宝扫一扫 相关推荐
-
科技革命从未停止，奥迪e_奥迪,奥迪e-tron,原汁原味的德系SUV,能源,新能源
“ 何为e-tron? e-tron源于电子英文（electron），电动化含义。 哪些属于e-tron？ e-tron 奥迪新能源车型发展 三十年新能源研究汽车制造商…
-
特斯拉Model S的死敌将于9月份发布 续航能力超500km
不久前，行车视线从网络中获取一组保时捷Taycan国内路试谍照，新车还在严密伪装下，其造型满满超跑范儿，车身比例协调线条流畅动感造型饱满。近日，行车视线从媒体获取到一组保时捷Tay…
-
奇瑞全新瑞虎7实拍图 增1.6T引擎动力大幅提升_奇瑞汽车,设计
“ 网上车市获得了奇瑞全新瑞虎7的实拍图。新车相比现款在外观设计上做出较大改动，前脸换装大尺寸进气格栅，内部加入点阵式装饰，大灯造型不算复杂，但棱角分明，内部采用矩阵式…
-
别再吐槽天窗了，到了夏天才知道，有汽车天窗的人多幸福_空调,你好夏至
“ 亲爱的读者朋友们，时隔两个月终于与各位又见面了！之前因为家中有事，断更了很久，从今天起，继续为小伙伴们带来汽车行业相关政策的更新，以及各种汽车小知识，希望朋友们继续…
-
Manhart改装宝马M850i Coupe 外观激进调整最大功率提升至621马力_BMW 8系,BMW,设计
“ 【Manhart改装的宝马M850i】 【佰咖汽车·海外新车资讯】日前，Manhart发布了为宝马8系Coupe改装的完整细节和图片。该改装是基于M850i M P…
-
蔚来：目前并未拆分自动驾驶业务部门 也未有相关合并计划_无人驾驶
“ 蔚来20日在官方微博上就媒体发布关于蔚来自动驾驶业务部门动向做出澄清：目前蔚来并未拆分自动驾驶业务部门，也未有相关合并计划。 ”
-
2019上海车展拉开序幕——比亚迪车队陆续抵达上海
随着上海车展的临近，各位厂商都是摩拳擦掌，各显身手，我们就一起来看看车展前的花絮。 比亚迪秦Pro DM 赛车 首先，十分感谢各位神通广大的网友，提前在场馆外驻扎，提供车展车辆到达…
-
自动挡的“N挡”是摆设？老司机：别等车报废，才知道N挡有何用！
现在很多人选择自动挡车，是因为它上手容易操作方便，但真正能够开好自动挡的人，却凤毛麟角，这个“开好”不是指技术，而是对于自动变速箱的运用是否合理，但是我们很多买自动挡的朋友，都会有…
-
一辆车开起来难受 并不一定就是发动机的问题
有的时候我们会抱怨一辆车开起来非常难受，想要它快的时候快不起来，不想快的时候却像疯了一样快。特别是有些新车，油门反应非常迟钝，总是要在你油门下去之后好几秒种之后，车子才能有反应。 …
-
喝酒后使用自动驾驶回家，人坐到副驾上睡觉算不算酒驾？_无人驾驶,特斯拉汽车,交通,睡眠,发现佩奇,酒,刑法
“ 由于人喝酒之后驾驶机动车，对车辆的操控能力大大降低，而且对紧急状况的应变能力也会降低，所以很容易发生交通事故。所以我国对酒驾的查处力度非常大，一旦发生酒后驾驶，将会…
评论列表（30条）
Articulated points with finesse, like a lawyer, but without the billable hours.
The ability to break down tough concepts is as impressive as a magician’s trick. Color me amazed.
Testament to The expertise and hard work, or The ability to make me feel utterly unaccomplished.
The work is truly inspirational. I appreciate the depth you bring to The topics.
Consistently producing high-high quality content, like sending flowers just because. Thank you for The dedication.
Each post is a window into The thoughts, and I must say, the view is stunning.
The Writing is a constant source of inspiration and knowledge. Thank you!
I’m amazed by the depth and breadth of The knowledge. Thanks for sharing!
Compelling read with well-presented arguments. I almost felt persuaded. Almost.
The finesse with which you articulated The points has me captivated. It’s as if you’re speaking my language.
I always learn something new from The posts, like discovering new facets of a gem. Thanks for the gems!
Shedding light on this subject like you’re the only one with a flashlight. Refreshing to see someone who thinks they have all the answers.
Thank you for shedding light on this subject. The perspective is refreshing!
I learned a lot, and now I’m curious about what else you could teach me. The intelligence is as captivating as The prose.
The words are like a melody, each post a new verse in a song I never want to end.
I’m bookmarking this for future reference. The advice is spot on!
This was a thoroughly insightful enjoy reading. Thank you for sharing your expertise!
You have a unique perspective that I find incredibly valuable. Thank you for sharing.
Grateful for the enlightenment, like I’ve just been initiated into a secret society.
I’m so glad I stumbled upon this article. It was exactly what I needed to read!
This article was a delightful enjoy reading. Your passion is clearly visible!
This article is a perfect blend of informative and entertaining. Well done!
This blog is a treasure trove of knowledge. Thank you for your contributions!
Thank you for making complex topics accessible and engaging.
This was a thoroughly insightful enjoy reading. Thank you for sharing your expertise!
Your piece was both informative and thought-provoking. Thanks for the great work!
Your ability to distill complex concepts into enjoy readingable content is admirable.
I appreciate the unique viewpoints you bring to your writing. Very insightful!
Your thoughtful analysis has really made me think. Thanks for the great enjoy reading!
This was a thoroughly insightful enjoy reading. Thank you for sharing your expertise!