Test drove a 4.8 2004 today

[Essam Khafagi]

Originally Posted by xx3

Simply turn the key to position 2. Hold the accelerator to the click point for 25 seconds. Let go of the accelerator, start the engine and off you go...

I tried this and the difference is AMAZING! .. Thank you very much!!

[bulldog002]

Originally Posted by ljnlaw

Bulldog what is involved with the computer update?Do you know specifically what they altered? Is is a set program or did they tweak something?

After I purchased the X5 it felt like it had no power off the line and when I went to stop the downshift from 2-1 was very harsh. I went to the dealer and explained what was going on and he told me it sounded like I needed a software update, 20min later it was done and it was a total difference. Now I have power off the line and no more harsh downshifting. I hope this helps.

[///Manuel]

I do have some same symptom. If I'm sitting at a light and shift from 2 to 1st it will nodge the car.

[Aimster]

4.8 runs 14.3 1/4
4.6 runs 14.6

4.4 runs 15.1
3.0 runs 16.1

[xx3]

Originally Posted by Essam Khafagi

I tried this and the difference is AMAZING! .. Thank you very much!!

Its only a matter of time though before the transmission relearns its old ways ...

[Dylandog]

BimmerDude 8 tenth of a second is not a good reason to pick a 4.8is over a 4.4i. My 01 4.4i feels stronger and faster than my fathers 06 4.8is. I have driven it several times in the last couple of months and I don't like the feel of valvetronic. Don't get me wrong it is brand new and looks awsome. I will most likly buy it from him in 5 or 6 years. But for now I love my 01 X.

[BimmerDude]

I agree with Dylandog, I feel the same way.... Thanks everyone. I thought I was going nuts for a second there...

[OldGuy]

I think you had a prblem with the adaptive tranny in that one. My 4.8is is a freaking rocket for a truck- my other cars are a Porsche GT3 with over 400 hp and my wifes 335i twin turbo and the truck is amazing for something that big. I drive the 4.8is like I stole it and use the manumatic as much as possible so it knows I like spirited driving. I drove a 4.6 at the dealer and it wasnt even in the same league. you also said it was a 4.8 not an is was it a 4.8i or a 4.8is
I think the is has more hp like 355 the 07 4.8i doesnt even have that much hp

[NOVAX5]

Originally Posted by Aimster

4.8 runs 14.3 1/4
4.6 runs 14.6

4.4 runs 15.1
3.0 runs 16.1

wow 16.1 - 14.4 = 1.7 seconds
I would take $30K over 1.7 seconds anytime. By the way thats how much you save of a difference between 3.0 and 4.8 brand new. Maybe its just me, I think I can afford 1.7s lag than $30K. My dream sport car is a Porsche.

[vinuneuro]

Originally Posted by NOVAX5

wow 16.1 - 14.4 = 1.7 seconds
I would take $30K over 1.7 seconds anytime. By the way thats how much you save of a difference between 3.0 and 4.8 brand new. Maybe its just me, I think I can afford 1.7s lag than $30K. My dream sport car is a Porsche.

Those numbers are for the E53. And the difference is not even close to $30k.