I have had my 1998 9000CSE for almost two years. Its a 5 speed with the Aero engine. I would like to know if it is normal for there to be a slight discontinuity when accelerating through 2200 rpm. I would not call it a dead spot but just a slightly noticable change in output as the engine revs through 2200 rpm. It is most noticable in 2nd gear but is detectable in all gears. I think it has been that way for the 30,000 miles that I have put on it but I just notice it more of late. I did not experience such with my 1994 9000CSE (now my son's work car) but it had an automatic transmission. I am more curious than worried about it.
Any comments would be appreciated.
R. Frist
98 9000CSE 94 9000CES 85 900 Turbo 5 sp. (now belongs to my grandson with 220,000 miles)