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
-
交通肇事逃逸，保险公司就不赔了吗？_保险,交通,人生第一份工作
交通肇事逃逸的话，保险公司也会赔付交强险，这不在免责范围内，对于受害人提交的单据，保险公司会审核，先在交强险的限额内对伤者赔偿，最高额度是十二万。在找不到肇事逃逸者的情况下，保险公…
-
这款车的女性车主比例应该是史上最低……
理想One把自己定义成“奶爸车”。 “奶爸车”这个说法有点新意，但其实市场上已经有非常多可以称得上是“奶爸车”的车了，典型如奥德赛、GL8这类MPV，还有汉兰达、锐界、途昂这类SU…
-
思域没上榜！最快6秒破百，20万内就数这5款合资车够快
对于选车这件事 每个人的想法都是不一样的 有人追求空间 有人追求颜值 而教授我追求的就是 快！ 相信有很多朋友和教授一样，一直以来对速度有着非常执着的追求，可是最后看看自己钱包，最…
-
中国市场迎历史最佳表现，奥迪1月却交出下滑3%答卷
2018年，虽然奥迪在全球范围内的整体情况不容乐观，但凭借中国市场的出色发挥，最终还是保持了与2017年基本持平的销量表现，而这种形势也延续到了2019年。近日，奥迪官方公布了最新…
-
车载无线充电器手机快充万能多功能点烟器usb一拖二转换插头感应
推荐理由 科技金属质感，高颜值，带数显，小巧便捷，耐高温，抗阻燃，充电又快又安全~车主人手必备~非常适用哦~ 此款商品正在进行限时活动，原来天猫售价9.8元，现有3元优惠券，到手仅…
-
车动态：全新E级上市；思域两厢版谍照；本田公布10月销量_本田思域,本田技研工业,斯柯达汽车,BMW X3,广州本田汽车,本田雅阁,奔驰,奔驰E级,BMW,本田缤智,东风本田汽车,本田凌派,原汁原味的德系SUV,汽车展览,广州国际汽车展览会,丰田汽车,上汽集团
“ 【车动态】盘点今日（2019年11月5日）汽车圈，最新鲜、最有价值、最好玩的汽车圈新闻车动态，看看今天有什么汽车大事件发生！ 汽车大事件一：2020款奔驰E级上市，…
-
有问必答：瑞虎7到底缺失了什么让他无法与H6博越RX5竞争
瑞虎7销量有多惨淡？去年全年销量为6.28万台，平均月销量仅为5000台左右，今年开年1月份瑞虎7销量也仅为5300台作为，在这个哈弗动辄上三万的时代，瑞虎7仍然无法突破万台大关，…
-
接班绅宝X65，北汽全新紧凑型SUV曝光_绅宝X55,绅宝汽车,绅宝D70,绅宝X65,北京汽车,原汁原味的德系SUV,标致汽车,设计,标致4008,BMW,绅宝X25,长安CS75,长安,轿车,新能源,吉利博越
“ 从测试车裸露的灯腔可以判断C62X会有扁平细长的灯体，而且有可能是全LED光源的配置。另外前杠下部格栅能够看到预留了ACC雷达安装位。车身侧面的轮廓与东风标致400…
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!