Failed eps module while driving. On the highway going about 60mph on a 90 degree day. Eps warning light (along with parking and ESC lights) popped up and steering froze. After some force could get steering to move... Slowed down and got off highway. Luckily was only going straight and was not passing or in a turn, very dangerous and scary. After turning the car off/on - all warning lights except eps steering reset. Car power assisted steering now randomly goes on/off. Dealer stated there is an open recall for this issue but only for the 2012 model year. Well it appears the same issue is also on the 2011 and it almost killed me. Luckily I was going straight and not passing or in a turn. Dealer also mentioned the failed module is not a reparable bmw part and the entire steering assembly needs to be replaced... So a very expensive invasive procedure to replace a part that can fail again on a hot day. Voltage issue apparently was fixed in the 2012 model year but not on the 2011. The federal safety agency should review the recall 12v302000 as the 2011 model year apparently also has this same issue as luckily I just lived through it.
2011 BMW Z4 steering complaints
Page 2 of 2: complaints 11 to 13 of 13, newest first, as owners wrote them.
Electric power steering failed. Steering system failure warning light came on. The steering wheel began to shake, and the steering wheel would turn a few degrees with power assistance and as I continued to turn the wheel power assist went away requiring excessive effort to turn. This first appeared on start up as I was driving out of my driveway.
Tl* the contact owns a 2011 bmw z4. While driving various speeds, the power steering seized and made the vehicle difficult to maneuver. The vehicle was taken to the dealer where it was diagnosed that the power steering mechanism needed to be replaced. The vehicle was not repaired. The VIN was not included in the federal safety agency campaign number: 12v302000 (steering). The manufacturer was not notified of the failure. The approximate failure mileage was 34,000.
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