Are any idiot lights illuminated when the poor idle manifests itself, perhaps the ABS light? Check the fuse on the OVP, it may be bad or even the OVP may be going south./
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72
'02 CLK320 Cabriolet - wifey's mid-life crisis
2012 VW Jetta Sportwagon TDI...at least its a diesel
Non illegitemae carborundum.