Wanted to bump this to the top for any other information that people may have gleaned about low power/low fuel economy since I am suffering with this currently. I am curious about replacing the 02 sensors. I can't remember if we have one or two. Anyone replaced the 02 sensors and get fuel economy/power back?

__________________
Josh


2005 E320 CDI

2002 VW Jetta TDI

Did you plug it into Xentry yet?

Any stored codes?

Ck. here:

2005-6 (and later) e320 CDIs -- Ck. & clean EGR valve

__________________
-- Chris

'95 E300, 216k miles, Silver Surfer
'05 E320 CDI, 138k miles
'07 S550 4matic, 69k miles

Gone but not forgotten:

'76 300D, 350k miles?, SOLD in 1995
'75 240D, 300k miles, SOLD in 1991

Gents,

I read thru this thread and I want to bring to your attention one more item that could trigger loss of power. In my case, 06 E320 CDI with 96kmi, I lost power when the swirl flaps link bar from the actuator fell off (detached). I consider this to be a difficult to find problem. There will be no code associated because the electrical actuator will still do its job, but because the linkage is not there the movement will not be transmited to the actual flaps.
Take a look and see if your linkage is still there. I attached few pictures to help you guys who are not familiar to find it.
I changed my link bar once and in a short time the link "cup" got worn off and fell again. This time I drilled a small hole thru the link "pin" and I secured the link assembly with a paper clip wire. I know that this time the link bar will stay there. ( see the pictures).

Attached Files

swirl flaps linkage.pdf (501.3 KB, 207 views)

Great Post. Thank you.

I looked quick last night. On the CDI that I've been having "EGR" issues, that linkage is totally missing. On my other CDI, linkage is there.

My question. I haven't looked in ALLDATA yet, but how do you get access to repairing/replacing that linkage? It looks like it has to be all done from underneath.

__________________
Mark in MA
05 MB E320CDI 402k Granite Grey Metallic
05 MB E320CDI 267k Black
05 MB E320CDI 232k White
05 MB E320CDI 209k Tectite Grey
99 Dodge 2500 Cummins 5sp 148k
62 Jeep CJ-6 120k

Any update on this from OP? i have a 2007 E320 Bluetec (om642) that has EXACTLY the same symptoms.

Car behaves PERFECTLY in every aspect, except it feels underpowered.

-starts up quick without hesitation on even the coldest winter mornings.
-Checked every electrical sensor and actuator in DAS to make sure they were operating within spec.
-boost pressure and fuel pressure are within spec. fuel injector return rates are even and within spec.
-0 codes from anything, even scanning with DAS.
-Passes compression test in DAS

The transmission does shift strangely, almost like its shifting too harshly or not timed right, but it is very consistent.

I almost wonder if its a torque converter lockup problem.

Has this come up at all in any post?

This was a killer for the OM60x series, insidious gutlessness, with no particular fault.

Thoughts?

__________________
Mark
========
THE WHITE FLEET
2016 GLE300d 4-MATIC 38K BROWN!
2012 S350 Bluetec==94k WHITE

2007 ML320 CDI==166K WHITE (FOR SALE)

Under new management:
2005 E320 CDI--140K--WHITE
1995 E300-Diesel-133.5K--THE CAR IS BLUE
1986 300SL--97.5K (European) AND WHITE. Back in Europe!
1991 190E 2.3-73K California Perfect.--WHITE
1995 E320-Wagon-159K--WHITE (recently scrapped)
1987 300D Turbo-213K--WHITE
1987 190D 2.5 Turbo-288K--WHITE