投稿

宝马x5车辆行驶中反映发动机水温过高的故障分析

cesifu • • 资讯

二、故障现象描述

车辆行驶中反映发动机水温过高

三、故障分析思路及排除方法

1、基本检查:冷却液管和水箱没看到明显渗漏，防冻液液位正常

2、ISID快测，有以下相关故障码：2E82DME电动冷却液泵，关闭2E81DME电动冷却液泵转速偏差。

3、走检测计划如下

4、检查水泵插头连线，电压和PWM信号正常。

5、电脑激活电子水泵，用手触摸水泵壳体，有工作的震动感。

6、拆下水泵，转动水泵叶轮，有明显的卡滞感，但水泵的叶轮没有卡滞物。

7、更换水泵后试车正常。

电子水泵的工作原理

宝马x5车辆行驶中反映发动机水温过高的故障分析

泵内集成的电子装置执行两个基本任务：调节并提供电压和电流，从而使EC 电机 和冷却液泵运转。按照发动机管理系统的要求，以调节泵 转速并向发动机管理系统反馈相关信息的 方式，调节冷却液流量。

拆检水泵

宝马x5车辆行驶中反映发动机水温过高的故障分析

好几部车辆因为电子水泵转速差故障导 致水温高报警，但其原因是什么呢？拆下水泵后，发现水泵转子的涂层裂开 了，变大了，与定子滑套摩擦。

宝马x5车辆行驶中反映发动机水温过高的故障分析

拆检水泵（完全卡死）

宝马x5车辆行驶中反映发动机水温过高的故障分析

宝马x5车辆行驶中反映发动机水温过高的故障分析

1、我们分别找了两个电子水泵进行了分解，水泵转子的涂层脱落，导致运转产生摩擦甚至卡死，引发发动机水温高报警。

2、也许是涂层质量问题，也许因为紧靠发动机，长时间高温导致水泵内涂层老化。

原创文章，作者：cesifu，如若转载，请注明出处：http://www.cesifu.com/article/28800.html

赞 (0)
cesifucesifu
0 22 打赏 微信扫一扫 微信扫一扫 支付宝扫一扫 支付宝扫一扫
上一篇 2019年4月29日 am10:00
下一篇 2019年4月29日 am10:20

相关推荐

回复 Oscar Jane Johnson

您的邮箱地址不会被公开。 必填项已用 * 标注

记住昵称、邮箱和网址，下次评论免输入

评论列表（22条）

  • Edward Brown
    Edward Brown 2025年5月20日 上午2:47

    The breadth in this content is exceptional.

    回复
  • Alan Henry Harris
    Alan Henry Harris 2025年5月18日 下午9:48

    I truly liked the way this was laid out.

    回复
  • Andrew Edwards
    Andrew Edwards 2025年5月18日 上午3:12

    Such a informative bit of content.

    回复
  • Oscar Edwards
    Oscar Edwards 2025年4月14日 上午7:00

    Uncertain whether a secured loan is right for you? Understand the benefits, such as lower interest rates and increased flexibility.

    回复
  • Charlie Williams
    Charlie Williams 2025年4月11日 下午11:49

    Not sure if a secured loan is right for you? Understand the benefits, such as more favourable terms and increased flexibility.

    回复
  • Oscar Johnson
    Oscar Johnson 2025年4月10日 下午1:35

    Discover how a homeowner loan can help you obtain the money you need without selling your home. Compare lenders and customise a plan that fits your needs.

    回复
  • Jacob Evans
    Jacob Evans 2025年4月10日 上午10:55

    Home equity release may provide the financial support you’ve been needing. Learn how to use the equity tied up in your home without having to downsize.

    回复
  • James Brown
    James Brown 2025年4月10日 上午8:13

    Thinking about releasing equity from your home? Review top lenders and understand your financial responsibilities before making a decision.

    回复
  • James Hall
    James Hall 2025年4月10日 上午5:34

    Equity release solutions may provide the financial freedom you’ve been needing. Learn how to use the equity tied up in your home without having to downsize.

    回复
  • Oscar Jane Johnson
    Oscar Jane Johnson 2025年4月9日 下午9:58

    Home equity release may provide the financial support you’ve been looking for. Learn how to use the equity tied up in your home without having to move.

    回复
  • Grace Evans
    Grace Evans 2025年4月9日 下午7:16

    Unlock the value in your property with a reliable home equity loan — suitable for covering home improvements, large expenses, or refinancing.

    回复
  • James White
    James White 2025年4月9日 下午4:36

    Release the value in your property with a reliable home equity loan — ideal for covering home improvements, major purchases, or refinancing.

    回复
  • Isla Robinson
    Isla Robinson 2025年4月9日 上午3:39

    Not sure if a secured loan is right for you? Understand the benefits, such as more favourable terms and increased flexibility.

    回复
  • Jack Evans
    Jack Evans 2025年4月8日 下午5:38

    Home equity release may provide the financial support you’ve been needing. Learn how to tap into the equity tied up in your home without having to downsize.

    回复
  • Noah Frederick Williams
    Noah Frederick Williams 2025年4月7日 下午10:21

    Not sure if a secured loan is right for you? Explore the benefits, such as lower interest rates and larger borrowing amounts.

    回复
  • Isla Charles Walker
    Isla Charles Walker 2025年4月7日 下午7:30

    You may be able to secure larger loans and enjoy lower monthly repayments by taking out a loan secured on your property. Review current offers today.

    回复
  • Jacob Hall
    Jacob Hall 2025年4月7日 下午4:48

    Thinking about releasing equity from your home? Compare top lenders and understand your rights and obligations before making a decision.

    回复
  • Ava Hall
    Ava Hall 2025年4月7日 上午12:11

    Thinking about releasing equity from your home? Review top lenders and learn about your rights and obligations before making a decision.

    回复
  • Isla Evans
    Isla Evans 2025年4月6日 下午9:31

    You may be able to secure larger loans and enjoy better interest rates by using your home’s equity. Review current offers today.

    回复
  • Thomas Patel
    Thomas Patel 2025年4月4日 下午11:21

    Home equity release may provide the financial support you’ve been needing. Learn how to tap into the equity tied up in your home without having to move.

    回复
  • Charlie Williams
    Charlie Williams 2025年4月4日 下午4:23

    If you’re a property owner looking to get a loan, a secured loan could be a wise option. Leverage better rates by using your home as security.

    回复
  • Grace Victoria Jones
    Grace Victoria Jones 2025年4月4日 上午11:18

    HSBC’s equity release is designed to help homeowners unlock the wealth tied up in their property. Whether you’re looking to support family members, HSBC provides a secure solution with no need to sell your home. Their specialist advisors can walk you through the process with confidence.

    回复