- Do not use open flames near the workplace, do not smoke or hold any objects that are very hot. There is a danger of an accident! Keep a fire extinguisher ready.
- Keep the workplace well ventilated. Fuel vapors are poisonous.
- The fuel system is under pressure. When the system is opened, fuel can escape under pressure. Collect the fuel with a rag. Wear protective goggles.
- Thoroughly clean connections and adjacent areas before opening.
- Place the removed parts on a clean lining and close. Use polyethylene or paper for this. Do not use fiber cloth for this!
- Carefully cover open parts or install technological plugs if the repair will last for some time.
- Remove spare parts from the packaging only immediately before installation. Do not use parts that have been stored unpackaged (e.g. stored in a toolbox). Replace only clean parts.
- Do not use compressed air if possible with an open fuel system. If possible, do not move the vehicle while doing this.
- Do not use sealants containing silicone. The silicone elements in the engine that got into the engine do not burn out and damage the oxygen sensor.