Had mine done a couple of days ago, and yes, I agree the throttle response has improved. However, I've noticed something different since the upgrade. It now seems extra "noisy" when cold (only). There's a very pronounced metallic rattle above the normal diesel "clatter" for the first couple of miles which then completely disappears when warm.
1. Also noticed this or
2. Got any suggestions what it might be before I ring my dealership?
Yes, I have had this noise since I bought my car 4 months ago.
It sounds like the waste-gate sound that rally prepared "Evos and Scubbys" have and which the younger lads driving older Diesel VW Boras and Jetta have copied by modifying the waste-gate.
I do not believe that there is anything wrong with our ASXs
@DRH: Yep, I've noticed mine do that ever since I had it, but it's only on particularly cold mornings (less than 3 deg-C), and usually disappears after I've pulled out of a couple of junctions. Main dealer reckons it's normal, and as I was *just* out of warranty when I asked that question, I'm sure they'd have told me otherwise to make a few £££s!
I had my update done at Chris Variava Mitsubishi in Nottingham on Friday. Handed the key over at 1500 and was given it back at 1550, so not so bad.
So far, I've only driven a few miles around the city (so not 'proper driving') and can't make my mind up whether the 1st to 2nd gear change is a lot less laggy and more responsive now - hoping I'm not imagining it!
Certainly haven't noticed any negative effects yet, which is the main thing.