Call to all owners of an up! TSI!!! Who of you has already been able to make acquaintance with the yellow engine control light??? At my up! the Lambda probe was changed already in May. When this did not succeed, then the engine control unit. Now 4 months later the same error again. VW has now instructed the Lambda probe to exchange again. Who has to report similar with his TSI. Also as a message directly to me.. Before already many thanks to you!