I bought a certified M4 with engine light on, since I have to go back to San Jose on that day, I did not do the repair in the dealership. I was told that I could check this issue in local BMW. When I check this out in BMW Steven creek last week, it was caused by broken wires near the engine(most likely caused by rodent damage) with a repair quote of 2900 dollars. I contact the sales manager in Encinitas today and try to figure sth out. He told me that it has been too long and too many miles were used. He refused to take the responsibility for the damage.
This is a below 10000 mile certified M4 and between the day that I purchased it and last week, it didn't need to be serviced. Except the engine light was on(the sales man told me 'it's a certified car, it could be just short circuit cased it'), and I didn't encounter any problem while I was driving. Therefore, I didn't go to the local BMW until it needs to be serviced. The local BMW pinpoint the cause of this issue and it was the broken wires. Except that, there is no other reasonable explanation and the light was on since I bought it from BMW Encinitas. Yet, Mr. general sales manager in Encinitas refused to take any responsibility.(When I asked to talk to the someone else in charge of this issue, he said he's the boss and there is no one else I can talk to).
I bought my first BMW three years ago. The local BMW has always performed good care to my car and great services. I trust BMW in their good service and work standard before this incident. Thats the reason I chose certified cars and clearly my trust is misplaced.
Whats the difference between 'certified' and 'used' in BMW Encinitas? A certified M4 with less than 10000 miles has proven to have broken wires near its engine. Good luck with the 'used' car bought from this place.