E92 M3 DCT Gearbox Software Upgrade

[waremark]

There is a recall for a DCT gearbox software upgrade. Has anyone heard what this is about?

[MrOnTheRopes]

Yeah about a month or so ago. Something to do with the car leaving you 'without drive' under certain circumstances (from memory)

[dick_dastardly71]

Anyone know what dates of manufacture this involves? Mine was only delivered about a month ago, so I assume it won't need upgrading?

[MrOnTheRopes]

dick_dastardly71 said:

Anyone know what dates of manufacture this involves? Mine was only delivered about a month ago, so I assume it won't need upgrading?

Courtesy of 'GSRider' on Mtorque...

There is now an official safety recall on all DCT equipped M3s.
From the VOSA site:

The safety Reference : R/2008/141
Manufacturer Ref : 0028000100
Make: BMW®
Model : M3
Launch Date : 06/10/2008
Numbers Involved : 1001
Build Start Date :
Build End Date : 10/09/2008
Recall Details
Concern : ENGINE MAY CUT OUT
Description : The double clutch is not operating at the optimum level. This could lead to the engine cutting out at low speeds.
Remedial Action : Recall the vehicles that are likely to be affected to programme the necessary control units.

[waremark]

I found a 12 page thread on it here:

http://www.m3post.com/forums/showthread.php?t=1775...

The cutting out issue (which I have not experienced) is only one of a number of issues addressed by the software upgrades that posters there have had. However, while they have found some aspects of DCT performance improved, they have found others made worse by the upgrade. I presume the upgrade they have had must be the same one which is the subject of this recall. I have asked my dealer for comments.

[dick_dastardly71]

waremark said:

I found a 12 page thread on it here:

http://www.m3post.com/forums/showthread.php?t=1775...

The cutting out issue (which I have not experienced) is only one of a number of issues addressed by the software upgrades that posters there have had. However, while they have found some aspects of DCT performance improved, they have found others made worse by the upgrade. I presume the upgrade they have had must be the same one which is the subject of this recall. I have asked my dealer for comments.

Let us know what your dealer says. Called mine to try and arrange the 1,200 mile service and find out if it's subject to the recall, but still waiting for a call back.

[waremark]

The US posters have had an upgrade to software version 31.1. My dealer says that the version he has received is 31.2, so hopefully it will avoid the issues referred to by the US posters. Only time will tell, I am getting the upgrade on 1st December. BTW, in spite of the minor issues I think the DCT is fantastic.

[dick_dastardly71]

waremark said:

The US posters have had an upgrade to software version 31.1. My dealer says that the version he has received is 31.2, so hopefully it will avoid the issues referred to by the US posters. Only time will tell, I am getting the upgrade on 1st December. BTW, in spite of the minor issues I think the DCT is fantastic.

Likewise I think DCT is pretty damn good. Only real criticisms are that it can be a bit jerky in automatic mode until it's nicely warmed up.