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BMWs throw back to the iconic 2002, with a renewed form and function. The smallest car in BMW's line up but still packs a punch. Available in coupe or convertible, powered by a naturaly aspirated inline 6 in the 128 or the turbo twin power inline 6 rocket sled 135.

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  #1  
Old 03-24-2016, 12:16 PM
EugeneSDT EugeneSDT is offline
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Cruise control auto braking

Has anyone else had this issue? The cruise control is on and engaged, vehicle maintaining speed as it should on straight and level road, then all of a sudden the vehicle applies braking and you slow suddenly? It has happened three times today, the third time I was travelling at 60mph and the car suddenly slowed to 40mph. No warning lights, local BMW techs don't have a clue, anyone on here experienced this before?
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  #2  
Old 07-26-2017, 04:37 PM
patelp7 patelp7 is offline
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I recently faced the same issue in my 2015 328xi Gran Turismo. I was driving on cruise control set at 78mph and all of a sudden it started applying sharp brakes on its own. After that it was applying brakes at the interval of 55-60 seconds. It was such a scary moment.
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Old 07-30-2017, 06:34 AM
hichamaziz hichamaziz is offline
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I faced the same issue.but i contact a specialist
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  #4  
Old 07-30-2017, 06:41 AM
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Doug Huffman Doug Huffman is offline
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If you truly feel that you are having a failure then YOU must notify SaferCar.gov at
https://www-odi.nhtsa.dot.gov/Vehicl...nt/index.xhtml

There are a number of instances when CC should actively brake.
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Old 07-31-2017, 07:51 AM
patelp7 patelp7 is offline
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I am really concerned with my car because it's a brand new car, bought in 2015 and in 2 and half years I have taken it for repairs multiple times. Some random part stops working. My car doesn't have ABS so not sure why the car should brake on its own. Additionally, the experts weren't able to diagnose the cause
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Old 07-31-2017, 08:48 AM
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Doug Huffman Doug Huffman is offline
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Does your owners manual not mention Active Braking on Cruise Control? Your CC is capable of active braking, for instance on what it considers hard cornering, to maintain set speed downhill. If you slow your CC set point by more than 5 mph then the car may actively brake.
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Old 07-31-2017, 08:50 AM
patelp7 patelp7 is offline
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In my case, it happens without car being on cruise control. The issue did start when I was on CC for sure but once the issue started I turned off CC and for two consecutive days it kept on braking without being on CC.
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Old 07-31-2017, 08:56 AM
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Doug Huffman Doug Huffman is offline
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Location: Washington Island, Wisconsin, thru Death's Door
 
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No car can be sold in the US without Anti-skid Braking System - ABS

If you truly feel that you are having a failure then YOU must notify SaferCar.gov at
https://www-odi.nhtsa.dot.gov/Vehicl...nt/index.xhtml
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  #9  
Old 07-31-2017, 09:21 AM
patelp7 patelp7 is offline
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My owner's manual does talk about Anti-Lock braking system and that's about it. My car is with bmw experts for more than 3 weeks and they have experienced the uncalled for braking issues and constant vibration (and some weird steering on right). They have replaced the braking system which fixed the issue for now but they couldn't figure out what was causing the brakes to apply on its own .

I will try to notify it to SafeCar.gov. Thanks for your suggestion
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  #10  
Old 12-02-2017, 11:37 AM
Silo325 Silo325 is offline
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I have a 2013 135 which has been in the shop of two weeks. This car actually applies the brakes but typically at low speed. You will pull into an intersection and all of a sudden it brakes and sometimes will come to a full stop. The dealer has replaced the wheel sensors, and DSC computer. A BMW engineer came up from Chicago. They are stumped. Anyone heard of this?
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  #11  
Old 12-02-2017, 11:47 AM
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Rusty34 Rusty34 is offline
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Toyotas used to apply the gas pedal to the floor when you weren't expecting it.
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