Mole - you still around??
You might be interested in this...
Recall my problems above, four months later I'm still trying to get them sorted out, however...
As of yesterday, having collected my baby after 3.5 weeks of stealership "fiddling" (at VW UK's direction - it's all getting a bit serious now, anyway back what you might be interested in...)
The 3-3.5k rpms dead spot's gone!!
My ECU was throwing up lots of false warning lights (ECU and Engine sticking on). After a few trips to get them reset, I'd had enough and asked for a real fix.
Basically, when collecting the car yesterday I got the service manager to admit that VW is "having problems" with their ECU's at the moment (not just on the polo) - basically the tolerances for what the ECU is allowed to accept mix-wise coming out the exhaust are too tight - so when it falls out of this narrow band (i.e. changing down gear and screwing up the rev-matching) - lots of warning lights because the ECU isn't programmed (out of the factory) with an ability to correct for it.
What they did for me was:
1. get new ECU software from VW Germany.
2. load onto to ECU
3. find out that reprogramming the ECU has killed it (hence, one week job went to 3.5).
4. order new ECU from germany with the new software already installed.
5. attached to car
6. return to a quite frankly stunned customer who though dead spots were more to do with friction, harmonics, and other mechanical things - not a software problem.
Cue lots of - letting a big gap open up in front - drop down to second - flooring it up to the rear of the car in front - type driving
V. pleased with this result - just thought you should know, it might be worth speaking to your dealer to see if this can be done for you.
Of course, I've still go other problems with it - but let's not go there...