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Message: <blockquote data-quote="black2" data-source="post: 752880" data-attributes="member: 50652">Hi Bro'sMy F10 2017 520i had this issue couple a weeks ago, when I was driving on Plus highway speed around 160km/h "High Engine Temperature .. drive moderate speed". The Oil Temp shows normal (middle) , off the engine and checked the engine.. nothing wrong, no leakage or smoke. Start the engine no more error msg, drive as as normal around 120-130 km/h .. for 15-20 minutes, nothing wrong everything normal... the oil temp stay at half mark. then I pushed the car to 160-170km/h ... after 15-20 minutes noticed the oil temp drop slowly from middle to 1 bar.. then it's goes back to middle (normal) then the same error msg comes back. I continue drive with reduced speed to 80-90 km/h after 10 minutes it's came back this time in RED request to STOP the CAR. I stopped the car and off the engine and checked the engine boot.... nothing abnormal... on the engine... the error msg gone. so drive again... and noticed it's when drive high speed above 140km/h this problem happens... so send to Wearnes ... they checked the log found the all the error msg... did bleeding test... couldn't find any leakage... told me they will upgrade the firmware... next day my wife collected the car... (I have to go overseas), back after 1 week and my wife told me the car was fine. on the weekend drive to KL... and at the 150-180 km/h speed the same problem re appear... back from KL send back to BMW... this time they checked and told me the water pump had very tiny leakage.. they found this after did a high pressure test... ordered the parts and request me to come back next week to replace as they close for CNY... hope it resolve the issue</blockquote>

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