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Worked for my wife's '17 Kodiaq too. Thx

Reading various comments about MPG in the mid-40s, I recall that mine was like that until I changed the wheels and tyres. I quickly got fed up of the crashy ride of the original 18" wheels, so swapped to some 16" ones. The cornering became vaguer, and ultimate grip was reduced too (mostly because I fitted all-season tyres instead of the lovely grippy Goodyear F1s fitted to the 18" wheels) - but the ride comfort was massively improved, and MPG increased to mid-50s. Having done 60k miles with the smaller wheels, a quick back of the envelope calculation shows 1000 litres saved - wow I feel rich!

@superbdreams it was £295 from Celtic Tuning. Price was in-between the others that I looked at, and I figured that even if the power claim was on the high side, it probably wouldn't be worse than the others. @Sune not this one - a mobile technician showed up and did it. There is one on the market which has a self install option; called something like Bluefin, IIRC.

@TasMan that's an indicated 60, so about 54 real, and only on long journeys, 6th gear, cruise control, 71mph. Round town an indicated 45 is more usual, but I don't do much of that. That's what the wife's MINI is for :-) However, she's just bought a Kodiaq, so my car will become the little one quite soon!

Been a while since I posted anything on here, but thought I'd pass on my recent experience of having a remap. Car is a 60 plate 170 CR 4x4, and I had 100k miles on the clock when it was remapped. I'd dithered for a long time in getting it done, not sure it would make a real difference. In the end, I decided to do it based on wanting more torque when lugging the caravan about... And the result has been transformational. The throttle response feels like you're at least 1 gear lower than you really are; it'll happily tootle about town in 5th at 30 (whereas it used to the deep unhappy grumbly thing...). In 4th at 50, the car feels like it leaps forward when you floor it (whereas it would simply 'gain speed moderately quickly' before). The red-line isn't higher (I don't think), but is reached without running out of puff. I wouldn't say the fuel economy is significantly better, but that's probably because I'm more likely to indulge myself with the happy pedal than before... Still, seeing an indicated 60mpg on trips where I was seeing mid 50's before - but I haven't kept proper records, so it's not conclusive. With the caravan: I usually try to drive so as not to keep people behind me waiting, and I haven't really noticed a great improvement when (for example) accelerating off a round-about; but I have noticed on my recent trip down the M5 that I didn't have to change out of 6th once, whereas on previous trips some of the hills required 5th to maintain speed or even 4th to accelerate round a lorry. Problems: the chassis and brakes haven't, of course, been upgraded to suit. Whilst I don't generally speed so I'm not arriving at corners any faster than usual, I do drive enthusiastically and there's something about having much greater punch coming out of corners that encourages you to maintain speed on twisties that can soon get too much for the car. I'm not sure forum rules allow me to name the company which did the remap, but I'm happy to answer PMs. The remap was through the OBDII port, rather than an add-on module, and took the technician about 45 minutes to do; so short of a proper map on a rolling road I reckon its about as good as you can get. The company claims a final output of 227 BHP, which I must say I took largely with a pinch of salt (because that's a BIG change, and certainly bigger than many of the others I researched), but it was a bit cheaper and I figured it couldn't be worse than the others - but whatever the actual number it's definitely noticeable. So overall - very happy I did it, and if you are on the fence then let me encourage you to go for it

I've been driving through this junction 3x a week for the last 10 years. They're in the middle of a 2.5yr project to improve it. Going eastwards they moved the slip road about a year ago; westwards they opened a new one about 2 weeks ago. It's obviously confused a lot of people as they have a matrix sign up saying 'NEW ROAD LAYOUT. IGNORE SATNAV'. I assume it will move again, as you currently join the M6 in lane 3, which is unusual in my experience (in the UK, anyway)

I feel pretty sure I'll have the most eclectic history here. From first to last: Caterham 21 VHPD Stuart Taylor Phoenix (GSXR1000) - http://craigsphoenix.se7ens.net/ LDV Convoy 3.5t LWB Hightop (Part-ex for the Phoenix) Got married VW Passat B5.5 1.9TDi Beat that

Happy so far with my Vredstein Quatrac 5s after about 8k miles. Quiet, efficient, grippy enough and seem to deal with standing water OK as well.

Makes a HUGE difference, for the better. The handling is worse if you push it, but Superbs aren't really a car that you want to flung about too much anyway :-)

Just in case anyone else is in the mood to pick up a 3m kitchen worktop, then yes it will fit in a Superb II Estate, with the boot closed. Very happy with this, as otherwise I'd have been sawing the end off in Wickes car park with a handsaw :-)

Hmmm. Another observation - I either got a really good batch of fuel from Tesco's, or the tyres have cut my rolling resistance as well. I normally scrape an indicated 50mpg (a real 44mpg), whereas my last 2 trips have seen an indicated 58mpg (real 51mpg). Which is nice :-)

And the verdict after 200 miles is that the 16s are like a magic carpet ride after the 18s. Potholes are now something heard, not felt, and general cruising is noticeably more serene. The steering is also lighter, which I guess is down to the narrower tyre width. I don't get much opportunity on my commute from Solihull to Cambridge to worry the handling much, but chucking the car round a couple of roundabouts it seemed that the car was fine, if possibly a little less certain - but the Superb has never been up there with the Caterham so I'm not really going to worry about that ☺

Yes, it is a bit keen, but the Quatracs are actually all season tyres. Having spent years faithfully swapping from summer to winter tyres and back again, I decided to try all seasons on the my previous car last year (Passat B5.5 aka poor man's Superb I) and they seemed fine - but we had no snow in the Midlands, of course, so they never got tested in that respect.

Changed the 18" summer tyres for 16" winter wheels yesterday. Audi wheels off eBay, Quatrac 5 all season tyres off Oponeo and the local garage fitted them. They noted that 16's are a tight fit over the brakes (170 4x4) - they had to reposition some of the wheel weights to get them to clear, so if you're going the same route you might want to advise your fitter. I thought the 55 profiles might feel a bit wobbly after the low profile 40's, but after a few miles on them, so far so good. The serendipity was that when the garage took the 18's off, they discovered that the O/S front inner sidewall (i.e. the side you can't see) was bulging in several places. The affected areas can be easily pressed in with your finger, so I couldn't have been far off a blowout. I can't really think what caused it, as the off-side tyre isn't nearly so likely to hit anything like a pothole, and I certainly haven't since I bought it a few months ago. Perhaps just a manufacturing defect?

Common fault. Keep pressing the unlock button - it unlocks eventually. I ended up sniping the wires to the locking mechanism to stop it locking. Others have replaced the mechanism, which involves taking the bit trim out - I was just too lazy.