Old injectors can cause various amounts of issues in your car from checking engine lights, to rough idles, to poor gas mileage. Rebuilding your BMW injectors is easy though. If you want to purchase your own rebuild kit, or have us do it for you, check out the links below:
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BMW Bosch 6 Cylinder rebuild kit:
BMW Bosch 4 Cylinder rebuild kit:
Oil Bottle Used in the Video: