Recently the performance of my 124 has deteriorated from <12 sec. 0-60 to 24 sec. 0-60. It also smokes a lot now. I have tried an Italian tune up but it won't accelerate fast enough to do any good, and when I do the smoke is horrendous. It seems to shift at the right points. When floored it will shift @4500rpm. It also lunges when it shifts. It just takes a long time to reach the shift point. It even smokes at mild acceleration, which it didn't do before.

Here is what I have done so far:

Changed both fuel and the air filter
adjusted ALDA
Swapped supply/return lines

Do you think the following will help:
Diesel purge
Clean tank strainer
Injector clean/pop test

What else could it be? Bad ALDA, plugged cat? Any suggestions appreciated.

__________________

Muleears
'07 E320 Bluetec 133K my DD
'04 Jaguar XJ8 VDP, 34K
'10 Hyundai Accent 60K Grocery Getter
'02 VW Golf soon to be on the road again
'97 E300 Diesel Son's DD
'61 VERY tolerant wife

Hampton Roads, VA USA

Gone but not forgotten:
'67 250S 95K
'86 300SDL
'87 300D Turbo, 364K! R.I.P.
'98 E300 Turbodiesel, 213K
'02 S420, 164K
'01 Prius 138K