i8hotdogs

Hello All,

I dropped off my car today to get the P-B-07.00/28a update for my E500. I was told they did feel a hesitation and completed the update. I will pick the car up later tonight and let everyone know if it makes a difference.

bmms8

cool, thanks for the update, i think our car needs one of these updates. it takes over a second to downshift after pressing it all the wasy down, hope it works

bmw2mb

can you explain what the symptoms are?

bmms8

i think the problem is that the hesitation from the trany takes to much time. this was a known problem, so hopefully my car has the problem, because it seems like it takes to much time

i8hotdogs

Here is my opinion. I picked up the car and noticed a little difference. I would not expect a whole second off the 0-60 time but one thing is for sure, the kick down response time is definately faster. The accelerater response between 40-60 mph is definately faster. I would definately recommend the update.

bmms8

thats cool, thanks for the update

RAI

i8hotdogs-

Thanks fo the info. I'm definitely going to add this to my service list for my next visit.

One question- does this involve a reprogramming/modification to the engine, or is it the transmission? Is is just the swiftness of transmission gear kick-down, or is it something to do with the engine?

Thanks,
RAI

awiner

It is a ECU update. It basically changes some of the fuel mappings.

suhochunsah

My car isn't broken in yet, so I don't really want to floor the car to see if i have a hesitation in my E500, but is it possible to just bring it in the dealer and ask them for the update anyways?
How long does it usually take? about 3 hours?

awiner

The update takes about 10 minutes once it is hooked up to the DAS laptop.

konigstiger

Did they road test the car or simply go ahead because you presented the TSB info? First time around, they claimed "unable to duplicate at this time".

FJPM

Is this update also valid for European specs E 500 ?

i8hotdogs

I first provided the service rep the TSB number, he researched the number and could not find any information. I found the actual hard copy of the TSB from someone on this forum, I forgot where, but this site is a GREAT resource. I printed it out and provided it to the same service rep. He looked a little embarassed that I had a copy of it when he told me it did not exists. I believe they did do a road test and proceeded to apply the update. The symptoms that I had was between 40-60 mph, it was very difficult to get the car to accelerate fast when I needed it too. The only way I could get it going is to press the accelerator all the way down until it hits the kick down switch.

After driving it few days, the update definately made a difference but not a HUGE difference. It does accelerate much faster now without pressing the accelerator all the way down.

I believe the update chnages the fuel-air mixture, not the transmission software.

konigstiger

Thanks. I'll dowload the copy as suggested.