- Do not use open fire near the workplace, do not smoke or hold any very hot objects. There is a risk of accident! Keep a fire extinguisher at hand.
- Ensure adequate ventilation of the work area. Fuel vapors are toxic.
- The fuel system is under pressure. When opening the system, fuel may escape under pressure. Collect the fuel with a rag. Use safety glasses.
- Clean connections and adjacent areas thoroughly before opening.
- Place the removed parts on a clean lining and cover. Use polyethylene or paper for this. Do not use fibrous fabric!
- Carefully cover open parts or install process plugs if the repair will take some time.
- Remove spare parts from packaging only immediately before installation. Do not use parts that have been stored unpackaged (for example, stored in a toolbox). Install only clean parts into place.
- If possible, do not use compressed air when the fuel system is open. If possible, do not move the vehicle while doing this.
- Do not use sealants containing silicone. Silicone elements that get into the engine do not burn out and damage the oxygen sensor.
[The original article is located on «BMWman.ru»]