The steering on my BMW Z4 2005 model sticks to the point of being unsafe on warm days. It is very sluggish to respond followed by erratic overcompensation. If the temperature is cool (<80-85 degrees) there is no detected problem. We can leave in the morning after the car being garage and it handles like a dream- 2 hours later after being driven in or sitting in the hot sun the steering is like its in mud. Whether taking an exit or simply changing lanes on the interstate. It is unsafe and should require immediate investigation.

- Sevierville, TN, USA

Steering on my vehicle becomes "stuck" and unresponsive in heat above approx 85 degrees. It overcompensates in corners regardless of how sharp, a simple on/off ramp becomes a "tightwalk". it is very scary and unnerving to the point of not wanting to drive on what would otherwise be a perfect "top down" day. Even changing lanes on the interstate is fearful as it acts as if the tires are in mud and then quickly overcorrection. It is very dangerous.

- Sevierville, TN, USA

Recently purchased 2005 BMW Z4, 40800 miles, exhibits erratic steering control when outside temp exceeds 85 degrees. The steering wheel responds as if its last position has a grove or notch requiring excessive force to correct or set a new direction. The result is the car lurches down the road from side to side. The worst is in gradual turns, the steering wheel does not feed back to straight as the car continues any arc once set... the car tries to drive itself off the road. Discovery or this "feature" is very disappointing and can be quite scary. The dealers refusal to address the problem is proving very disappointing also. There should be a mandatory recall and correction of this obvious safety defect common to '03-'05 Z4's.

- Central Point, OR, USA

The contact owns a 2005 BMW Z4. While driving between 40-65 mph, the steering wheel would not turn right or left. When the wheel is released, it overturns and forces the driver to struggle to maintain control of the vehicle. The failure has occurred approximately 7-8 times. The dealer could not duplicate the failure. The failure only occurs at high temperatures, such as 80's and 90's. they dealer stated that the updated software program failed. The program was installed and the vehicle rebooted. The failure recurred on another hot day. The vehicle was taken to the dealer and they replaced the electronic power steering at the contact's expense. The failure mileage was 18,490 and current mileage was 23,177. Updated 09/23/09 the consumer stated the steering binds on days when temperatures exceed 85 degrees. When the steering does release, it comes with excessive force. It was difficult to keep the vehicle in the lane. The steering wheel does not return to the center position without additional effort. Updated 09/29/09.

- Highland Village , TX, USA

My BMW Z4 2005 2.5 automatic has developed a sticky steering when is hot. It is very dangerous, over-correcting and under-correcting.the steering act like if don't have a dead center.you feel like something is tearing the car. When you make a very wide curve the steering stay put in that particular direction. It feel very unsafe and is very exhausting in long trips.

- Mayaguez, PR, USA

BMW 2005 Z4 3.0 - sticky electronic steering that causes steering over reaction when it unsticks. Occurs after vehicle is sitting the sun on a hot day during the summer. Almost caused a crash during the last occurrence. BMW just advised there was noting wrong with the steering as there were no faults. This is the third time it has happened.

- Wayne, NJ, USA

Steering sticks at times when driving on the highway.

- Sarnia, MI, USA

Sticky steering on warm days or cooler days with the heater on. I need to use more force than usual to move steering wheel to negotiate lane changes or curves on highway. I need to steer the car straight after turning off center. The problem is intermittent but still unnerving.

- Kingaton, 00, USA