Air Flow Meter 0280202134/0280202203/1734655.9 OEM Replacement

This replacement uses the same precision thermal-film sensor element and sealing process as OEM, with an housing material tested for vibration and temperature resistance; signal response precision and service life match OEM. OEM number 0280202134, compatible with 0280202203, 1734655.9 and other models; fits most European cars with Bosch systems, such as VW, Audi, BMW engines. Function: measure intake quantity and send data to ECU to control injection and ignition, ensuring stable air-fuel ratio. Replacement is medium difficulty; remove intake duct and carefully handle connector clips; use a special tool to avoid damaging the seal; experienced owners may DIY, but first replacement recommended at a workshop.