Quote:
Originally Posted by Sonnie
The "tip-in", "acceleration delay", "initial take-off" issue is serious and a safety issue. Read the threads and user reviews complaining about it and note how many owners are concerned about the unknown. If you attempt to feather the acceleration, will the car take off fast enough and/or jolt you…. is it going to go or not? The unknown can be dangerous.
This issue is not new with the 2011 models. It has been around for several years in several BMW models, but apparently has become most noticeable in models with the N52 engines (and maybe some others). However, from my investigations, it appears in the 2011 528i models, it has become more pronounced…. more aggressive…. and therefore more noticeable and more of an annoyance…. as well as more of a safety issue.
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This whole saga is an interesting one. But is this sort of issue just with BMW?
We run VW Caravelles and the latest couple have the 2.0d bi-turbo diesels with DSG (dual clutch) autos. Guess what? We are getting exactly the same issue with one of them, the other perfect.
Rolling start into traffic flows can become a complete unknown, verges on dangerous, as it messes up what are initially good judgements. Other drivers can wonder what you are about, when you have to abort a move.
I'm definitely suspecting transmission software in the VW, as the dual clutch transmission should be good for go at all times, but still messes up. But with two identical setups, why is one fine and the other a mess? There has to be more than just software. I do wonder if, with all the variations, fixes that seem to work (for a while), same thing on others doesn't do anything, is all down to tolerance stacks in the build. It may have got all too sensitive, and we are finding the issues, BMW, VW, or whoever.
I do hope we are not going back to "good 'uns" and "bad 'uns", that's no way forward for any motor manufacturer.
HighlandPete