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Mini Cooper Misfires

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Nov 8th, 2010
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  1. November 8, 2010
  2. John’s Southbay Service Station:
  3.  
  4. At the beginning of July, I paid $2119.66 for you to repair the air conditioning (no cold air at all) and for you to eliminate the intermittent misfiring and stumbling/stalling when idle. You successfully repaired the air conditioner. You also claimed to have resolved the misfiring problem by replacing the plugs, coils and wires.
  5.  
  6. The misfiring and associated symptoms caused the Service Engine Soon (SES) light to go on. When I picked up my car from you, the SES light was still on. I assumed this was because you simply had not cleared the error code. The light went off after a few days.
  7.  
  8. I drove the car for approximately two weeks before the SES light came on again as the engine stumbled/stuttered. I continued to drive the car assuming that the issue was fixed and this was just a temporary glitch. The light went away again after a few days. A few weeks later, the problem reoccurred.
  9.  
  10. As the weather got cooler, the problem began to surface more frequently. I determined that the problem would not occur as long as I had the air conditioner on, which explained why the problem did not occur frequently during the summer, the air conditioner was on then frequently.
  11.  
  12. Faced with misfiring and stumbling (and the associated SES light) on almost every driving experience, I brought my car back to you on October 19. It took you two weeks to diagnose the problem a second time and determined that two pairs of valve springs for the same misfiring cylinder were needed. A week later for parts and labor and my car was ready on November 5 and I paid $690.07. The SES light was off.
  13.  
  14. I drove the car to Westbury, stopped for an hour then proceeded to Long Beach but did not make it onto the parkway before the same problem happened again. I called the service station on Saturday to double check that the work performed should not have a break in period and was informed that I was correct, it did not. Driving again Sunday and again Monday, the car misfired and would stumble until I restarted the car.
  15.  
  16. This means that twice now I have paid for this problem to be fixed and twice you have charged me for work that did not fix the problem. Your invoices make no mention of tests performed to determine the problem (e.g., vacuum test, compression test, leak down test, etc). Had you properly and fully diagnosed the problem from the start and told me that $4000+ worth of repairs would be needed, I would not have proceeded with any of them because the car is not worth that amount of money.
  17.  
  18. What guarantee do I have that paying a third time to fix the problem will not require me to return next week with another $1000? Why should I even pay for a third repair when the problem was never fixed the first or second time? Why should I have paid for work that did not fix the problem?
  19.  
  20. As mentioned before, to reproduce the problem:
  21. • Car must be warm (when idling above 1400 RPMs to warm up, it never happens)
  22. • AC must be off (when idling at 1200 RPMs to power the AC, it never happens)
  23. • Brake normally and watch the RPMs dip to 500 before jumping back to 800 when fully stopped
  24. • Repeat until either
  25. o Misfiring happens while braking
  26. o Misfiring happens once fully stopped and you go to accelerate
  27.  
  28. Contact me at 516-867-5309 to discuss this further once you’ve identified the cause of the misfire.
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