320d Absolutely Gutless!

[Gram]

Hi guys, i've just remapped a 320d and it mad no difference at all, in fact with the extra fuelling it made it worse. Ive put the existing map back on and test driven it, the guy has said that yep, thats normal and I reckon id beat it in a Ford Transit van, its diabolical! The turbo doesnt spool up at all. Ive heard many a rumour of MAF sensor failure on these so changed that to no avail. Checked the turbo pipe work and all seems fine. The car has 40k on the clock and had a new turbo 7k ago. Any ideas or help here would be great. Ive got an OBD fault diagnostic machine which turned up last night but cant get to the car until sunday.
Cheers People
Graham

[storme]

so why did you have a new turbo at only 33k ???? 70k is a more common figure to be changing turbo's and thats if they arnt looked after...im wondering if something is doing the turbo ????

[storme]

hey gram,, i just read this article in my BMW car magazine.




"ive got a problem with my 320d-it has poor acceleration and it feels as if something is holding it back when accelerating thru the gears.Ive had the airflow meter replaced but it has not cured the problem,,,any suggestions" and the answer that came back was...

"The airflow meters on the 320d are a common problem and just getting them replaced is not enough.Highams Park Motor Company 020 85233443 told us that what should have been doen at the same time was an ECU remap." etc etc


not sure if it helps,,but it just gives you an idea ....
maybe you gotta sort t out at the same time
i know they run in limp mode when there is a problem

my own car ran like crap,,,till i started to boot it everywhere,,,now the computer has detected my driving style and adjusted accordingly
hope it helps

[Gram]

Thanks for the replies.

I did put the original map back on when I changed the MAF sensor. Ive told him to take it to a BMW dealer to be looked at. Theres no need for electronics to work in such a fashion, every other car you just plug the MAF in and away you go.

Cheers

Graham

Originally posted by storme@Apr 2 2005, 11:53 AM
hey gram,, i just read this article in my BMW car magazine.




"ive got a problem with my 320d-it has poor acceleration and it feels as if something is holding it back when accelerating thru the gears.Ive had the airflow meter replaced but it has not cured the problem,,,any suggestions" and the answer that came back was...

"The airflow meters on the 320d are a common problem and just getting them replaced is not enough.Highams Park Motor Company 020 85233443 told us that what should have been doen at the same time was an ECU remap." etc etc


not sure if it helps,,but it just gives you an idea ....
maybe you gotta sort t out at the same time
i know they run in limp mode when there is a problem

my own car ran like crap,,,till i started to boot it everywhere,,,now the computer has detected my driving style and adjusted accordingly
hope it helps

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[peterkulesza]

this is weak but: i remeber some south aftrican dude talking about this. bmw was apparently changing boost pressures mid course in these motors. perhaps there is a service bulleting for you exact car, worht a check i think.

[Gram]

I have already done a check for any outstanding recalls or service checks. Came up clear but thanks for the reply.
Bl**dy weird motor, why it needed a new turbo at 34k I'll never know (previous owner), someone mentioned 70k more realistic. I've had a few Fiat JTD's, couple with well over 150k on original everything, I dont expect turbos to go unless abused badly.

Still waiting to hear about verdict but as I have found this is fairly common, I'll post up the exact causes and remedies for it.

Cheers

Graham