pretty bad
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
4,960 miles

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problem #1

Jun 172015


  • 4,960 miles
Two issues: 1. driving at highway speed of 65 mph, with battery power drained, the rex (reserve engine) turns on. Suddenly, speed drops from 65 mph to 40 mph while on a 2-lane ca freeway, almost causing me to be rear-ended by traffic. One month later, same situation, same problem. 2. manufacturer states a combined mileage range of 80 miles on battery, 60 miles on rex (reserve engine), for a combined range of 140 miles. I have never had more than 60 miles on battery and 40 miles on rex for a combined mileage of 100 miles, 40% less than BMW states, even though I use a professionally installed level 2 charger. Brought the car to the dealer to check these issues. The BMW dealer"S written findings: "car performed as designed; vehicle is epa rated to go 72 miles per charge in ideal conditions. This range will vary drastically based on vehicle usage as well as weather conditions. This is normal operation. Road tested vehicle and was easily able to travel 75 miles on a charge. Range extender is intended to be used as a failsafe to get the vehicle to a charging station and should not be considered for regular use, especially at freeway speeds, as the engine is not designed for this. Power reduction and reduced vehicle speed will result. Updated complete vehicle software. Vehicle now has a battery percentage display available to help gauge when power reduction is taking place. These are the only measures available to address customer complaint as the complaint is regarding a design parameter of the vehicle and not an actual issue." I disagree. My safety has been compromised, and the car does not function as advertised. Neither of these issues is addressed in any material from the manufacturer, dealer, other websites or other industry or web-based sources. BMW na sent an engineer to check the car, he said this is the design of the BMW, nothing more can be done.

- Saugus, CA, USA