BMW 550 2007 62000miles. transmission can't choose the gear between first and second when i try smooth start. it's either like a senior driver or super sports- imposible to start moving in mid range rpm's
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2007 BMW 550i Question: gearbox
Answer #1ZeeTech November 05, 2010, 13:05Master
Read this and see it it applies to your car. If it does, it needs a software update.
The customer may complain about one or a combination of the following situations, listed below:
1. Intermittent harsh 4-3, 3-2 or 2-1 downshift (jolt) when coming to a stop with light brake application.
2. Jolts and/or jerks felt when reaccelerating after coasting.
3. Judder when gently accelerating (most noticeable at an engine speed below 2,000 RPM).
DME and EGS software calibration
Program the vehicle with ISTA/P 2.33.0 or later, using the path "Conversion" and "Downshift behavior". After this modification, the k-word "HADS" will be added to the Vehicle Order.
ReplyVisitor, December 15, 2010, 23:36
is the judder likely to be more when it is cold outside and engine/transmission are cold?
Also is it ok to share this note with the service advisor or just tell them the symptoms?
Final question, i just had satellite radio installed and they did a full reprogram. Does the software patch you mentioned get applied automatically as part of latest update or is it only installed on cars where there is a reported issue?
Thanks in advance for your response
ReplyZeeTech, December 16, 2010, 10:37Master
It really depends if they just coded the MOST network, which handles the navigation, telephone, stereo, CD, etc... to control the sat. radio, or if they did a full system software update. A full update - based on how far is it behind- could take many hours.
Of course you can show this note to the service advisor.
I hope they can help you to get rid of this problem.