I too kmy Bmw to this shop for hard start condition. With outrageous diagnostic price of $133.00. I accepted and asked him to find the problem and fix it. So they came up after checking the entire fuel system as they wrote..Fuel filter needs to be replaced. $345.17 on top of the $133.00 diagnostic charges.. for a total of $487.55. I asked him to go ahead and fix it once and for all. Guess what .. After the job is finished , he tells me that the fuel pump needs to be replaced in order the car work properly. I am out of $487.15 and still the same problem , hard start is still there. Now he wants $800.00 to replace the fuel pump. What a pure fraud, wrong diagnostics to charge additional money and labor. he simply replaced my good fuel filter to make more money overall.
First let me say: I am sorry you are unhappy with our service. As explained to you when we worked on your car, there is a process involved in troubleshooting cars. The first order of business is to understand the operation of the system(s). With the complaint of hard start we add a fuel pressure gauge to the vehicle to monitor the pressures, We then follow the path of the fuel blocking it off at certain spots to see the result of it maintaining pressure. The first item in that path is the fuel filter with integral regulator. This is one of the items that controls fuel pressure and residual pressure. After recommending replacement we still did not see the results that we were looking for. Our next step was to replace the fuel pump. That service was declined.
After that you called back and asked me to install a used pump for free. We can't work for free, and there was no doubt about the way we carried out our diagnosis. That left you unsatisfied, I am sorry for that, but we took every step in a logical, professional manner.- Bavarian Workshop