128i feels slower than 328i coupe

[jermzkill]

i used to own a 2008 328i coupe for about a year prior to buying my 2008 128i (non sports package). Both cars are automatic and both cars have the same engine. For some reason my 128i seems considerably slower than my 328i. I was thinking it is because the weight is balanced evenly on the 128i but that's a stretch. Anyone have any insight on this?

[TX78666]

No insight from me, other than wondering if something is wrong with the 128. I spent a few days with each, and the 128 felt very quick, while the 328 felt like something ponderously slow and comfy, that I might suggest for my mother.

Of course, maybe something was wrong with the 328 I was driving.

[1-2MANY]

had both for loaners (autos and no sports pkg) and they feel about the same, just the 128i is more tossable

[Tom K.]

I have both a 128i 'vert and a 328i wagon. They have identical 230hp motors, 6 speed manual transmissions and 3.23 differential ratios and they weigh within 20 lbs of each other.

However, the 128i (perhaps because of the ZSP and shorter wheelbase) "feels" quicker - especially when the top is down.

Tom

[DriveHard]

Originally Posted by jermzkill

i used to own a 2008 328i coupe for about a year prior to buying my 2008 128i (non sports package). Both cars are automatic and both cars have the same engine. For some reason my 128i seems considerably slower than my 328i. I was thinking it is because the weight is balanced evenly on the 128i but that's a stretch. Anyone have any insight on this?

Did you get the 128 pre-owned ???? If so, reset the transmission adaptations. turn car on, but engine not running. step and hold accelerator to the floor ( even passed the detent for downshift) hold for 1 minute.. release and start vehicle and go for a ride.

[TX78666]

Originally Posted by DriveHard

Did you get the 128 pre-owned ???? If so, reset the transmission adaptations. turn car on, but engine not running. step and hold accelerator to the floor ( even passed the detent for downshift) hold for 1 minute.. release and start vehicle and go for a ride.

Interesting.

I wonder if that is why the 328 I drove felt so, meh, in comparison to the 128.

[jermzkill]

Originally Posted by DriveHard

Did you get the 128 pre-owned ???? If so, reset the transmission adaptations. turn car on, but engine not running. step and hold accelerator to the floor ( even passed the detent for downshift) hold for 1 minute.. release and start vehicle and go for a ride.

I'll give this a try and let you know if there is a difference

[adobeee]

Originally Posted by jermzkill

I'll give this a try and let you know if there is a difference

How do you reset the transmission?

[ErvGotti]

Originally Posted by adobeee

How do you reset the transmission?

Read post number 5.

[jermzkill]

Originally Posted by DriveHard

Did you get the 128 pre-owned ???? If so, reset the transmission adaptations. turn car on, but engine not running. step and hold accelerator to the floor ( even passed the detent for downshift) hold for 1 minute.. release and start vehicle and go for a ride.

Holy shit it worked. This is definitely the most I've ever gotten out of being a forum member of any forum.

My car is a hell of a lot faster than my 328i now. Before when I would press down on the gas it would feel like my car was thinking about speeding up now it just goes. I put my car in DS and floored it at a stop light and I peeled out, which is the first time that has happened since owning the car. I def have to thank you 1000 times dude.

Do you know how my transmission adaptations got to where they were. It seemed like it was in some type of gas saver mode. Are there any other tips similar to this that you have?

[adobeee]

Originally Posted by jermzkill

Holy shit it worked. This is definitely the most I've ever gotten out of being a forum member of any forum.

My car is a hell of a lot faster than my 328i now. Before when I would press down on the gas it would feel like my car was thinking about speeding up now it just goes. I put my car in DS and floored it at a stop light and I peeled out, which is the first time that has happened since owning the car. I def have to thank you 1000 times dude.

Do you know how my transmission adaptations got to where they were. It seemed like it was in some type of gas saver mode. Are there any other tips similar to this that you have?

Be prepared to pay more for gas now!!

I'm going to do the same for my 128i so I will feel your joy soon.

[RPM90]

Originally Posted by TX78666

Interesting.

I wonder if that is why the 328 I drove felt so, meh, in comparison to the 128.

I always seem to get a 328xi auto for a loaner.
Yeah, if you put in in "D" and go about your business it'll feel underwhelming. That's why I use the "manual" mode.
It changes the overall feel positively cause that engine LOVES higher revs, which we don't really need in our 135i's.

Try it next time and wind that NA 3.0 out. It sounds beautius.
Silky, balanced, and screaming.
Too bad the loaners don't typically have manuals to really get a feel for how good the NA 3.0 is.

[DriveHard]

Originally Posted by jermzkill

Holy shit it worked. This is definitely the most I've ever gotten out of being a forum member of any forum.

My car is a hell of a lot faster than my 328i now. Before when I would press down on the gas it would feel like my car was thinking about speeding up now it just goes. I put my car in DS and floored it at a stop light and I peeled out, which is the first time that has happened since owning the car. I def have to thank you 1000 times dude.

Do you know how my transmission adaptations got to where they were. It seemed like it was in some type of gas saver mode. Are there any other tips similar to this that you have?

SORRY...BEEN A FEW DAYS..

actually the transmission control unit and the torque converter have a "memory" (sort of). your RPM, Throttle position, etc etc etc etc are recorded and in some way averaged... lets say that you drive your car in traffic 10 miles each day to work, never getting past 35 mph.... then you take it out on the weekend to the canyons.... the car will shift / respond as if it were in traffic till it learns the canyons.... get it...

The only draw back is that it takes a while for it to re-average itsself.. many miles...

It is all done for economy reasons..

Feel free to reset at least once a month... there is no harm..

warning.. after a while you will feel no difference as you are now expecting it.. its slight changes, nothing major, but it is different, and it seems you like it..

Have fun..

[wolfe]

I'd guess that's also a nice sign your car was driven carefully by the previous owner.

[jermzkill]

Originally Posted by wolfe

I'd guess that's also a nice sign your car was driven carefully by the previous owner.

yeah i knew the guy took care of the car and didn't floor it every change he got...he was a 60 year old guy, but yeah this is even more confirmation that he drove pretty carefully.