2004 330i ZHP DME Software Upgrade ?

[ATLZHP6M]

Has anyone here had their DME software upgraded on a 2004 330 ZHP ?

I'm having a bit of a rough idle problem and I'm wondering if my software needs upgrading. The only issue I have with this is loosing whatever "special" programming went into the ZHP to make it a ZHP.

Any suggestions, ideas or comments?

[MarvelPhx]

They can upgrade the MS45 software to the latest software without compromising the "ZHP" changes. The diagnostic computer will only load the matching files.

I was denied that request today at my local BMW service dept.

The SA told me that unless I had an SES light or they had a TSB open that was related to the DME software being faulty they wouldn't just upgrade per customer request. :roll:

[MarvelPhx]

There are TSBs on the rough idle issue... and there is a new one on the power dip at 4k as well... Either one should fix the idle issue.

Here is the text from the new TSB:

===================

Service Measure
Engine Electrical B12 209 05 04/06/2005
Subject
M54B30 MS45.1; Engine Power Drops at 4000 RPM

Vehicle
E46, E60 with M54B30 and manual transmission.

Complaint
Customer may complain of an engine power drop at approximately 4000 rpm during aggressive acceleration.

Cause
Ignition timing retardation due to unfavorable tolerances of DISA valve flap shaft. Vibrations of a DISA valve are interpreted by the knock sensor system as detonation combustion.

Measure
On a customer complaint basis, replace DISA valve with the improved part (PN 11 61 7 544 805).
After DISA replacement, connect vehicle to DIS/GT1 and from DME identification page retrieve the programmed and basic DME part numbers.
Reprogram DME with the latest available DTS CD! SSS CIP software version. DME programming should last for at least 20 minutes and should result in both programmed and basic control unit number changes. Reprogramming of DME clears the long-term knock sensors adaptations. If the knock adaptation values are not cleared, the vehicle will still exhibit the power lack complaint, even with the improved DISA valve installed.

Important:
In the event the DME programming takes only a short period of time (approximately 5 minutes), and the basic control unit part number has not been changed, the adaptation clearing process has not been accomplished.

In such a case, contact Technical Hotline — Drive train via a PuMA case, requesting authorization for DME shipment to Engineering Department for reprogramming. For the PuMA case title use the following: MS45.1 DME KNOCK ADAPTATION RESET”.