Hi together, with me the air quantity meter (part No. 14 on the drawing) has been defined as a defect. Only thus no misunderstandings arise: I believe this also to my friend and do NOT doubt this! I only ask for more detail here. The air quantity meter is a piece of wire, which is heated to 800°C. The electronics on the sensor now measures the amount of air that is fed to the turbo by the current flow. The more air, the colder the wire, the less resistance, the more current – or so similar. 1. Is it true that this part represents the equivalent value of 500€? For example, at Dell you get a current, complete Pentium 4 computer or a complete installation stove with ceramic field! 2. Is it true that a damage to the measuring wire is caused by moisture and/or pollution and this is also a typical damage to the air quantity meter? 3. A repair of this sensor, looking at the wire is not possible – it has to be replaced by the entire electronics and the housing? 4. How can one (as a laie, so?) test the turbometer is made longer than a test device?