I've heard owners talk about a hesitation on acceleration with these cars and mine seems to be no exception. A typical full throttle run to 60 or 70 MPH goes something like this:

1. Floor accelerator, car begins to move forward liesurely...
2. About 1.5 seconds later, a big rush of power...
3. Shifting from 1-2, right as it shifts, there's a brief lag of about .5 sec. followed by the same rush of power.
4. Repeat for all gears.

Is this typical of all cars of these years or is mine special... I've had some discusion with you all about this before but now I'm trying to home in on the problem since the rest of the car is doing pretty well. I have something in the Skunk Works that might solve the problem but I need to know if I'm chasing a design problem or there's something else going on. I don't want to be covering up one problem by compensating and solving another. If this works out, I may need a beta tester to validate my results.

Thanks!

__________________
-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250

Unless this is a VNT turbo you are going to have turbo lag.

__________________
http://superturbodiesel.com/images/sig.04.10.jpg
1995 E420 Schwarz
1995 E300 Weiss
#1987 300D Sturmmachine
#1991 300D Nearly Perfect
#1994 E320 Cabriolet
#1995 E320 Touring
#1985 300D Sedan
OBK #42

Yeah, it's a regular old triple k. I figured it's lag but I just want to make sure the turbo is not bad before I go digging around messing with other stuff. I have a trick I learned from dealing with the trucks that I want to apply to the car.

__________________
-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250

IIRC the w210 uses throttle by wire... so its the lag from the system if I am correct.

I remember this while driving Rick Miley's and the E300D I was looking at...

You are correct sir! It operates very much like the system on my F250 - many of the same sensors. One of the first things I did to my truck is to modify the linkage on the throttle to provide more fuel earlier for a given throttle position. A programmer will also do this but I'm not ready to get a chip for the car yet.

The car had a hideous amount of slack in the throttle cable and I had to press the pedel about 1 inch before anything would happen which is totally unacceptable. It makes the car feel like it has no power at all. One other thing I plan on doing is re-curving the throttle response by relocating the cable attachment point on the sensor cam. This should be pretty easy, I just have to figure out where it needs to go. That's a project for another day though...

__________________
-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250

or.. just swap the governor assembly.. a 603 to 606 should do The finns do it so they do not have to mess with the electronics.

Electronics are OK, you just have to figure out how to alter input from sensors or change the programming to make them behave like you want them to!

__________________
-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250

I have posted this before, but I can usually defeat this lag phenomena by not flooring the car. Flooring it makes the initial lag time increase as well as the between shift events less smooth. I give about a quarter throttle, get moving and then I punch it just over half way, hold it as the car speeds up and then slowly add throttle so that when the shift happens I still have about a quarter throttle left, and I continue to slowly add until I get to speed. Punching it to the floor seems to leave me standing doing nothing for a while, which is a painfully unpredictable moment, then take off quickly with much interference by the ASD system. My method gets me moving normally followed by an abrupt increase in acceleration that stays pretty steady through the gears. May not actually be faster, but it feels a lot faster. Jim

__________________
Own:
1986 Euro 190E 2.3-16 (291,000 miles),
1998 E300D TurboDiesel, 231,000 miles -purchased with 45,000,
1988 300E 5-speed 252,000 miles,
1983 240D 4-speed, purchased w/136,000, now with 222,000 miles.
2009 ML320CDI Bluetec, 89,000 miles

Owned:
1971 220D (250,000 miles plus, sold to father-in-law),
1975 240D (245,000 miles - died of body rot),
1991 350SD (176,560 miles, weakest Benz I have owned),
1999 C230 Sport (45,400 miles),
1982 240D (321,000 miles, put to sleep)

Sounds pretty normal to me. Trans almosts shifts like a manual under heavy throttle. I think MBDOC has said previously this was intentional to protect the trans and flex disks from the low end torque of the diesel.

If objectionable, the easiest solution is to chip it.

I believe the STUSA "Agressive" chip plays with the torque converter in addition to fuel, boost and lag.

__________________
Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

Jim, it works the same for me. I've tried doing as you suggest and I can modulate the throttle to over come the lags.

Terry, I do remember him posting that back when I had my initial questions after purchasing the car. Thanks.

It sounds like it's a characteristic of the car. I'm going to hook up a temporary boost gauge to observe the action for a while.

__________________
-Evan


Benz Fleet:
1968 UNIMOG 404.114
1998 E300
2008 E63


Non-Benz Fleet:
1992 Aerostar
1993 MR2
2000 F250

ditto here....the car winds up like a rubber band and then finally lets loose like the system just threw the switch on!

__________________
FRED

Daily Driver: 98 E300TD 199K
Hobby Car: 69 Austin Mini
Past Diesels: 84 300SD, 312K
87 300SDL, 251K
94 Chev. K-1500 6.5Ltr.TD, 373K

Why is everyone always concerned about the lag when punching the accelerator to the floor? Do you guys really take off like that every time? Mine does the same thing if I punch it to the floor but under most conditions I find the turbo to be quite well behaved. I don't drive like a little old lady mind you, just not WOT except when it's really needed.

And, in the $3 + a gallon time we are in a lighter pedal will result in higher MPGs too, a nice fringe benefit.

PS - I actually drove the speed limit over this past weekend setting the cruise at 65 MPH and drove to NJ and back on a single tank...over 600 miles until the reserve light came on. The car turned in 34+ MPG on 80% highway/20% city, the best I have ever achieved. I might just keep driving it this way as it was very nice not to have to watch for the cops all the time and just let the world pass me by for a change - smiling all the way to the pump.

__________________
Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz

ok.. thats it.. I need a w210

Only problem with the 606's design is that it's turbo is a tiny KKK K14 so it's already maxed out at stock power levels.

__________________
1998 W210 diesel (wiped out by a texter)
Baum spring compressor "for rent"