Two problems related to gas recirculation valve (egr valve) have been reported for the 2006 Mini Cooper S. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Mini Cooper S based on all problems reported for the 2006 Cooper S.
For about 2 weeks now I have noticed that my cooling fan comes on each time I turn off the engine and then it shuts off after a minute or so. So I thought that the fan was just acting up or something. However, yesterday I also noticed that the engine temperature gauge was at the maximum (250 degree f) and the indicator red light had come on. I had been driving for about 20 minutes at about 50-60 miles per hour on side roads (so I had been stopping at lights at intervals). The weather is actually unseasonably cool (60-70 degree f), and I had been changing gears (I have the automatic with sports drive). So naturally, when I turned off the engine the cooling fan came on again and didn't turn off for another 3-5 minutes. So on the way back, I drove at about 30 miles with my hazard light on as I was driving on the free-way and put it on cruise control. But the temperature gauge still went up to about 3 quarters of the way and the fan kicked on after I parked it after about 15 minutes. The manual says to immediately stop the car and let the engine cool down if the temperature gauge goes past the half-way point. I have an appointment with the dealer in 2 days for what I thought was a cooling fan problem. But this seems like an engine issue. So I am planning to get the car towed to the dealership first thing in the morning.
I started leasing my Mini cooper in 11/2005. I had leased cars with mitsubushi prior to this for 8 years with no problems. Recently, I was coming home from the airport in my Mini cooper. It started to "clunk", seized, I pulled over - then black and green fluid started pouring out of the front of the car. The roadside service sent a tow truck to pick me up. I sat in 95 degree heat on I-95 for 1 hour and 45 minutes waiting for the truck. The truck came and we took the vehicle to the closest BMW dealer - the dealer I leased from - princeton BMW. They looked at the car and told me that it would not be covered under warranty - even though the car was only 8 1/2 months old and had 6,300 miles on it. They told me that the reason was that the car had gone through water and this was not covered. 2 weeks prior to this event, I went through water on a regular street in my area, the car stopped, I started it up and went on my way. I then proceeded to drive the car down the shore, to work, etc with no problems, no engine light or warning signs. On July 9, I drove to the airport, parked the car, and went on a business trip. On July 11th the incident on 95 occurred. I have never had a car that was not able to go through water on a street.