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
-
2019款Giulia/Stelvio上市 售37.98万元起
阿尔法·罗密欧旗下2019款的Giulia和Stelvio正式上市，其中Giulia的指导售价区间为37.98-125.98万元，Stelvio的指导售价区间为45.68-127….
-
为啥双离合毛病这么多,大众仍要普及?连奥迪都喜欢用?
我们都知道大众车型的一大特点，就是喜欢使用双离合变速箱。其实大众并不是一直在使用双离合变速箱的，之前的大众采用的是来自爱信的6AT变速箱，只不过后来慢慢的不用了，而是采用了自家研发…
-
首日盘中即涨50%、市值超蔚来，还原投资人眼中的理想汽车
核心观点： 1、理想汽车能够获得多位投资人关注，重点在于李想其人。 2、良好的成本控制，让理想汽车在放弃SEV后仍有二次出牌机会。 3、销量、智能化、自动驾驶等是理想汽车未来的重要…
-
新营销、新产品、新技术 海马汽车“反击进行时” | 寰球车评
海马汽车所面临的困难众人皆知，从一张张大幅度亏损的财报，到深陷“卖房保壳”的舆论重压，越来越多的人开始总结、分析海马汽车在此前所暴露出的问题，但却忽略了这家车企正在竭尽全力地“蜕变…
-
全新捷豹XEL入门车型不到30万元，豪华中型轿车市场不只有BBA
自从奔驰C级中期改款使用了1.5T发动机来代替以前的2.0T发动机之后，就再也没有建议过朋友购买这款车。因为在经过长途的高速公路以及城市道路驾驶之后，不论是动力还是变速箱与发动机的…
-
又一款硬朗皮卡 新款雷诺Alaskan发布
[爱卡汽车 海外新车 原创] 日前，雷诺在欧洲正式发布了新款雷诺Alaskan皮卡。新车外观基本延续现款车型，不过对安全性、载重能力、动力三个方面进行了升级。据悉，新车将于今年秋季…
-
红旗这款新车HS7外观还真挺唬人，车长超过5米、轴距超过3米。新车设计风格源自2016年北京车展上发布的红旗S_
红旗这款新车HS7外观还真挺唬人，车长超过5米、轴距超过3米。新车设计风格源自2016年北京车展上发布的红旗S-Concept概念车，动力方面将搭载3.0T+8AT动力总成。明天上…
-
魏建军的长城又成功了！10月新车销量曝光，数据看的让丰田发愁_丰田汽车,长城汽车,长城哈弗,皮卡车,WEY,长城集团,汽车展览,哈弗H6,广州国际汽车展览会
“ 魏建军的长城又成功了！10月新车销量曝光，数据看的让丰田发愁！ 在汽车市场当中，自主品牌表现的越来越强势，接二连二的突破对于合资车造成的压力越来越大；这不今年长城汽…
-
车子外观脏？试试这样保养，开多久都锃亮发光
大家在购买自己的爱车之后，在保养等各方面肯定特别用心。在小编上学的时候家里买了一台北京现代，尤为让小编记忆清楚的是这台车每天都要去擦拭三遍。不管脏不脏？反正每天都要去擦拭一遍，真让…
-
8月车市：寒潮中，轿车、SUV市场依然星光点点_运动型多用途车,轿车,大众途观,本田技研工业,大众汽车,吉利帝豪,比亚迪,本田CR-V,大众桑塔纳,全新卡罗拉华丽绽放,市场营销,大众宝来,大众帕萨特,东风逍客,广汽丰田雷凌,日产奇骏
“ 近日，乘联会公布了8月车市数据：全国乘用车市场零售156.4万台，同比下降9.9%，环比增长5.4%——今年1-8月狭义乘用车零售下降8.9%。 8月环比增长率历年…
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!