irritating problems and issues on a used car for sale

[CleanSump]

It surprises me the number of older BMWs and Mercedes around here that are detailed beautifully, but blow blue smoke going down the road.

 

[SC Maintenance]

It surprises me the number of older BMWs and Mercedes around here that are detailed beautifully, but blow blue smoke going down the road.

Probably a "tune" that isn't appropriate.