If the mechanic recommends replacing certain parts, ask for the old parts. You may receive credit on some parts if the mechanic wants to keep them. However, some used parts may not have any credit value. It's a particularly good idea to keep the old parts if you are concerned unnecessary work is being done on your car. Remember, if you want the old parts returned, that information must be included on the repair order before the work begins.
Many disputes arise when consumers pick up their cars and see their service bills.
Be sure the repairs listed on the repair order cover all the problems you described. If the work is guaranteed, get all the warranty information in writing on the repair order or bill. If you do have a problem, such as the bill greatly exceeds the estimate or the repairs were made improperly, always go back to the original mechanic. Often, a dispute can be settled quickly and calmly. However, if the business refuses to correct the problem or answer your questions about the bill, then legal action may be appropriate.