宝马 N52 发动机在车辆行驶时温度过高报警
<p style="box-sizing: border-box; margin: 3.9pt 0.7pt 0pt 1.2pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 12pt; line-height: 1.15; color: rgb(0, 0, 0); text-indent: 0.1pt; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; color: rgb(0, 0, 255); font-size: 10.5pt;">故障现象</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">：一辆宝马</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">2009</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">年 E60 530LI，客户反映车辆高速行驶时，CID</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">和发</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">动机仪表提示发动机温度过高报警，发动机温度过高。</span></p><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.29; color: rgb(0, 0, 0); outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; display: inline-block; height: 1em;"></span></p><p style="box-sizing: border-box; margin: 3.9pt 0.6pt 0pt 1.1pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 12pt; text-align: justify; line-height: 1.18; color: rgb(0, 0, 0); text-indent: 0.05pt; outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; color: rgb(0, 0, 255); font-size: 10.5pt;">诊断诊断：</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">首先我们的维修技师对车辆进行试车和检查，发现客户反映的情</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">况存</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">在。然后我们对发动机冷却液位进行检查，液位明显低于正常液位，我们首先对</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">发动机冷却水加注到正常水位试车，试车大概 10</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">分钟左右，CID 和仪表继续报</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">警，发动机水温动机温度过高。</span></p><p style="box-sizing: border-box; margin: 1.4pt 0.7pt 0pt 1.2pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 12pt; text-align: justify; line-height: 1.17; color: rgb(0, 0, 0); text-indent: 23.9pt; outline: 0px !important;"><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">根据以上初步检查分析可能导致故障的部件有：保险损坏、</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">电子风扇、水</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">温传感器、水泵、电子节温器、</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">水箱和冷凝器中间太脏，线路以及插头、DME</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">控</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">制等。</span></p><p style="box-sizing: border-box; margin: 1.5pt 0.6pt 0pt 1.15pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 12pt; text-align: justify; line-height: 1.18; color: rgb(0, 0, 0); text-indent: 24pt; outline: 0px !important;"><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">本着先易后难的原则，首先用专用诊断电脑对系统进行连接</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">诊断，读取故障</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">信息为：“2E81 DME</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">电动冷却液泵，转速偏差</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">”。一般报转速偏差就是水泵出</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">现卡滞现象，接着我们首先对水泵进行检查，测量供电为 12V 和 BSD 通讯正常</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">（8-11V</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">），</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">经过以上检查没有发现问题，水泵插头无进水腐蚀现象，线路没有 </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">发现异常，直接更换水泵。试车发现电动冷却泵转速偏差故障排除，但水温故障</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">依然存在，而且没有别的相关故障码。</span></p><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 2.24; color: rgb(0, 0, 0); outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; display: inline-block; height: 1em;"></span></p><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 34.39; color: rgb(0, 0, 0); text-indent: 0.7pt; outline: 0px !important;"><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"><img alt="图片-宝马 N52 发动机在车辆行驶时温度过高报警-蛙趣网" fetchpriority="high" decoding="async" width="549" height="459" src="https://wapq.cn/wp-content/uploads/2025/03/20250305232927410-20250305232927174-IM-2-459h.jpeg" class="wp-image-708 size-full" imgbox-index="0" style="box-sizing: border-box; outline: 0px !important; height: auto; max-width: 100%; border: 0px; vertical-align: middle; max-height: 100%; display: block; margin: auto;"></span></p><p style="box-sizing: border-box; margin: 2.4pt 2pt 0pt 1.15pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 12pt; text-align: justify; line-height: 1.19; color: rgb(0, 0, 0); text-indent: 24.15pt; outline: 0px !important;"><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">发动机电子水泵是刚刚更换可以排除，然后我们用宝马</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">诊断电脑读取发动机</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">冷却液和水箱出水口水温度，没有发现异常。用专用电脑主动控制电子扇，电子</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">扇正常运转，检查电子节温器电路正常。根据以上检查诊断可知，可能电子节温</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">器机械故障。启动车辆检查电子节温器，当水温过高时，发现节温器与水箱连接</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">的管的温度比节温器与电动水泵连接的管的温度低很多。由此判断可能电子节温</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">器机械卡死，不能很好地控制大小循环。所以更换节温器</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">， 然后试车，没出现发</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"> </span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">动机温度过高现象</span></p><p style="box-sizing: border-box; margin-top: 2.6pt; margin-bottom: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 25.9; color: rgb(0, 0, 0); text-indent: 0.7pt; outline: 0px !important;"><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;"><img alt="图片-宝马 N52 发动机在车辆行驶时温度过高报警-蛙趣网" decoding="async" width="553" height="345" src="https://wapq.cn/wp-content/uploads/2025/03/20250305232928860-20250305232928525-IM-4-553w345h.jpeg" class="wp-image-709 size-full" imgbox-index="1" style="box-sizing: border-box; outline: 0px !important; height: auto; max-width: 100%; border: 0px; vertical-align: middle; max-height: 100%; display: block; margin: auto;"></span></p><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.66; color: rgb(0, 0, 0); outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; display: inline-block; height: 1em;"></span></p><p style="box-sizing: border-box; margin-top: 3.9pt; margin-bottom: 0pt; margin-left: 1.35pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 12pt; line-height: 1.1; color: rgb(0, 0, 0); outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; color: rgb(0, 0, 255); font-size: 10.5pt;">故障排除：</span><span style="box-sizing: border-box; font-size: 10.5pt; outline: 0px !important;">更换发动机电子说水泵和电子节温器故障排除</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(0, 0, 255); font-size: 10.5pt;">。</span></p><p style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 16px; line-height: 1.3; color: rgb(0, 0, 0); outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; display: inline-block; height: 1em;"></span></p><p style="box-sizing: border-box; margin-top: 3.9pt; margin-bottom: 0pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 12pt; text-align: right; line-height: 1.1; color: rgb(0, 0, 0); outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; color: rgb(17, 17, 247); font-size: 10.5pt;">故障总结：</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(23, 54, 93); font-size: 10.5pt;">该车为电子水泵系统，我们维修冷却系统后必须对冷却系统排空气，</span></p><p style="box-sizing: border-box; margin: 1.3pt 2.05pt 0pt 1.15pt; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; font-size: 12pt; line-height: 1.19; color: rgb(0, 0, 0); outline: 0px !important;"><span style="box-sizing: border-box; outline: 0px !important; color: rgb(23, 54, 93); font-size: 10.5pt;">方法是：</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">1、加满防冻液后， 盖上水箱盖，然后插入钥匙，接通点火开关</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">(或者说</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">不踩刹车，按下</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">START/STOP</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">按钮)；2、空调暖风模</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">式，温度调到最高，风量调</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">制最小，这是很重要的一个条件，只有这个状态下，电动水泵才可能运转，</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">使防</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">冻液进行一个小循环流动；3、行车灯开启状态，即大灯</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">开关往右拨一档；4、不</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">发动，油门踩到底，约</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">10</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">秒，就会听到电子水泵工作的声音了；5、电动水泵大</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">概会持续运转</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">12</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">分钟左右；6、等水泵停止运转后， 打开水箱盖</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">进行检查，如果</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">液位低于</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">max，再添加防冻液到 max 位置；7、如果需要再次排气，可以使 D</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">ME</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">完全复位(拔出钥匙</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">3</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">分钟以上，或按下</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">STAR</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">T/STOP</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">按钮</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">3</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">分钟以上)，然后重</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">头再来。</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(17, 17, 247); font-size: 10.5pt;">排气时注意事项：</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">如果你觉得你自己的蓄电池已经快到使用寿命了，那</span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;"> </span><span style="box-sizing: border-box; outline: 0px !important; color: rgb(51, 51, 51); font-size: 10.5pt;">最好一开始的时候给蓄电池外接充电器。</span></p><p></p>
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