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
-
比亚迪2.9s破百新车要来特斯拉工厂失火老马着急
车友们好啊，AI汽车圈每天新鲜事儿汇总栏目又来了，让我们一起看看新能源汽车近期有哪些动态吧。 奥迪e-tron订单破两万却再次推迟交付 早在去年，奥迪就公布了旗下首款纯电动车e-t…
-
海外偶遇2019款现代领动！比朗逸大气1.4T榨出130马力配双离合
目前市场中的紧凑型家轿车在市场中的热度依然是处于只增不减，然而面对汽车市场层出不穷的新车，各大厂商也在不断纷纷发力，推出全新的车型来迎合当下消费者的胃口，增加在市场中的竞争力度，而…
-
火箭选车2018年度试驾评选
在2018年，老余作为火箭选车的首席试车手（不叫车评人，现在车评人是骂人的话），参与测评了多达60多款车型。 其中一部分作为视频，给大家分享了较为全面的整体产品力，还有一部分作为文…
-
它是3月最受瞩目的新车，外观时尚车长4.7米，配2.0T马力240匹
新车出现的频率是越来越快，这也和目前国内的汽车市场发展的速度有关。虽然还没到三月份，但是关于三月份的新车已经让不少消费者感到期待。在即将上市三月份新车中，有一款车倍受关注，那就是来…
-
续航265km能解决里程焦虑吗？ 奥迪Q2L e
近日，答哥从国内媒体获悉，上海车展首发的一汽-大众奥迪Q2L e-tron或将今年6月在国内正式上市，新车可以看作是Q2L的新能源版本，并且专供国内时尚，外观设计与Q2L基本一致。…
-
万万没想到：车祸后保险公司赔完，还能找全责方赔一大笔钱！ 【真实案例】
去4S店看车还能免费拿京东卡！老司机都写了，你还等什么？ 那是2018年6月28日的中午，北京，我驾驶着车准备去公司，心里想着上班要做的事情，大意了些，转头就出了车祸——这是我亲身…
-
它才是真正的加价王，别再冤枉埃尔法了_丰田埃尔法,迈巴赫,奔驰,迈巴赫S级,本田思域,本田技研工业,奔驰G级,丰田汽车,宾利飞驰,宾利汽车,豪华车,雷克萨斯汽车,进口车,BMW 7系,丰田汉兰达,跳槽那些事儿,劳斯莱斯汽车
“ 要说什么是国人反感却无可奈何的事情，那加价提车得算上一件。什么强加装饰、贷款和加价，这个让经销商屡试不爽方法，已经存在10多年。而关于这个话题，相信不少老铁都会第一…
-
卡车轮毂知识，为什么中国重卡轮毂没欧洲的看着好看？_货车,香港,欧洲
卡车轮毂知根据国际趋势，公路用车使用真空轮胎已成为主流，一般公路用车的载货车，牵引车广泛使用11R22.5 12R22.5真空轮胎，或是295/80R22.5 315/80R22….
-
重汽车辆故障案例_DTS,通信
“ 起动案例 一、豪沃车；十升发动机，车突然熄火，然后就打不着了。通过DTS检测仪进行诊断，没有故障码，数据也正常，维修人员进行换件，更换发动机ECU，起动机转，但…
-
外观、内饰科幻，悬架调校硬朗，试驾天际首款电动中型SUV ME7_设计,原汁原味的德系SUV,科幻小说,保时捷,iPad
“ 文：懂车帝App原创 高帅鹏 图：白东东 在今年4月的上海车展上，天际汽车首款产品天际ME7宣布正式上市（两款车型补贴前售36.68-38.18万），时隔四个月之后…
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!