timmus

I have now had the fuel efficiency display enabled for over a week. In the last week, I have driven circa 500km, but all of my journeys have been short and on slow, rural roads. When I now switch on the ignition, I see 73.0mpg rather than 74.0mpg (which I was at the beginning of the week). So, whilst I still don't have a definitive answer about the method of calculation of the average fuel economy, I am confident that the KI is not calculating over the last 100,000km or from when the car was new. I think it is more likely that the average is calculated over the preceding 1000km. Forgive me if I've misunderstood, but I'm not sure this is entirely accurate. When you switch on the ignition, the displayed value corresponds to an average consumption. When you start driving, the display changes from the average consumption to the instantaneous consumption. However, when the car is subsequently stationary (just sitting at traffic lights, etc), the display does not return to displaying the average consumption ...it simply displays the last known instantaneous consumption. So, if I wish to know my average consumption, I have no choice but to switch off the car and then start the engine again. Of course, it could be that there are variations in functionality between older/newer KIs, or that UK/Central European KIs work differently, but I doubt it. May I please ask, why was this part of my post removed? It gave a humorous history of my knowledge of this particular feature. Are personal anecdotes, even when they are on topic, not allowed? Does this apply to just this technical section of the forum or to the entire site? Cheers, Tom

Hi Guys, I've known about this change for some years, but have never thought to mention it because I didn't consider it to be especially useful. Moderator: Sorry, but removed off topic in the "Technik" section. - Nagah From my experimentation, I agree with what has been reported in this thread so far... - When you first switch on the ignition, the display shows the average fuel consumption. What I don't know is whether this average is for the last 1000km, or the last 100,000km or since the car was new. My 74PS TDI has done 375,000km and shows 3.8l/100km, which is 74.0 miles per imperial gallon. I have not yet found a way to reset this, either with the black stalks in the Kombiinstrument or with VCDS. I also know of no way to connect the FIS controls to a Kombiinstrument without FIS; the electrical contacts don't exist. The result of this is that, if you have to change your Kombiinstrument (due to electrical failure of some variety), you inherit the fuel economy figures from another vehicle (unless you buy a new Kombiinstrument from Audi). - When the car starts moving, you see instantaneous fuel efficiency, with a delay of approximately 1 or 2 seconds. - It does not appear to be suitable for the AUA and BBY engines due to the behaviour of the EPC light. Of course, if you don't care about the EPC light, it works, but in the UK this may create problems with the annual MOT test (like TÜV). I have not yet tested it on the BAD Kombiinstrument, but I expect to see the same problems with the EPC light. Moderator: Sorry, but removed off topic in the "Technik" section. - Nagah Kind regards to all, Tom

5 weeks to go in which to order an intercooler. This could be a once-only opportunity. There's no guarantee that there'll be another production run after this one. Cheers, Tom

This is very true. However, bigger is not always better. You can read about the history of the Forge intercooler and the problems that arise from its size here: http://www.a2oc.net/forum/showthread.php?32986-TDI120-My-New-Engine&p=281492#post281492 Read Section 5 "Compromises in Existing Choices" and Section 6 "A No-Compromise Solution". Also, for UK customers at least, the Forge intercooler is not available by postal order: it has to be purchased and fitted at the same time. We in the UK cannot just buy the intercooler alone. The ProAlloy intercooler is available by post, meaning you are free to fit it yourself or have it fitted by a garage of your choice. Also, unlike when fitting the Forge intercooler, you can keep the air scoop and no parts of the car need to be cut or modified in any way. Grüße, Tom

Hi guys, You are absolutely right; unfortunately, it is quite expensive. This is because the manufacturing is expensive and because the numbers are always going to be quite small. Unfortunately, it simply isn't possible to make this product any cheaper. Also, it is a comparable price to comparable products. If you look at the intercoolers that are made by ProAlloy (here: http://www.proalloy.co.uk/cgi-bin/sitewise.pl?act=sect&s=1609&pt=52_1608&id=proalloy), you will see that they all cost approximately this much. Be aware that there is no value-added tax (Mehrwertsteuer) on the prices you see on the ProAlloy website, but the price listed in this thread is inclusive of tax. I wish these could be made available for £250, but that's impossible. You can, of course, buy many cheap intercoolers for this amount of money. However, you then need to change it regularly and that can get boring! Most people would probably prefer to fit one reliable unit and then forget about it. Regards, Tom

Ah, ok. Es war nur für Rechtschreibfehler. Hallo, Andre.

Weiß jemand, warum ich meine Beiträge nicht mehr bearbeiten kann?

Thanks Bret. I have for a long time used A2-freun.de as a resource, but have never posted. I can read German perfectly well as long as it doesn't include a huge number of abbreviations and slang terms for components, etc. I have met a few members from this club though, so I know it's not really the dark side. :-) The TÜV is something I had considered but thought I'd post anyway and hope that someone would provide further advise. ProAlloy sell from their website to Germany on a weekly basis. All the intercoolers that you see here are available to German customers and they sell regularly: http://www.proalloy.co.uk/cgi-bin/sitewise.pl?act=sect&s=1609&pt=52_1608&id=proalloy I spoke with ProAlloy earlier today about the TÜV issue and was advised that it wasn't a problem. The only times they have had to get involved in TÜV testing is for fuel tanks. Cheers, Tom

Hello fellow friends of the Audi A2! First of all, let me apologise for writing in English. I lived in Germany as a young child and so my spoken German is good, but my written German and my German engineering vocabulary is terrible. Please excuse me! My name is Tom and I have been an active member of a2oc.net for many years under the username Timmus. I do a lot of retrofitting for UK-based A2 owners and have upgraded hundreds of A2s with optional extras like cruise control, Bose, multifunction steering wheel, rear electric windows, etc, etc. Recently, I decided to upgrade the engine of my A2. I call it TDI120. You can read all about it here: http://www.a2oc.net/forum/showthread.php?32986-TDI120-My-New-Engine As part of this project, I developed an all-alloy intercooler to finally solve the reliability problems of the factory intercooler. As many A2 TDI drivers will know, the original intercooler fitted by Audi is poorly made and unreliable. A failed intercooler results in the car entering 'limp home mode'. Replacements won't be available from Audi forever and, even whilst they are, the poor reliability of the original unit remains. So, a replacement that offers both total reliability and increased effectiveness is needed. The problems of the original Audi intercooler and current third-party replacements are documented here: http://www.a2oc.net/forum/showthread...492#post281492 With this post, I hope to open a group order for the all-alloy intercooler, as used in my TDI120. The all-alloy intercooler solves all reliability issues, offers increased cooling capability and fits the car as standard. In order to fit this intercooler, there is no need to modify any components of the car in any way. A full description of all the benefits of this intercooler, and how these benefits are achieved, can be read here: http://www.a2oc.net/forum/showthread...493#post281493 For comparison, here is the original intercooler fitted from factory: The all-alloy intercooler is manufactured by Pro Alloy Motorsport, a UK-based, FIA-approved automotive manufacturer who specialise in race-standard heat exchangers. They have manufactured intercoolers, coolant radiators and fuel systems for Ferrari, Lotus, Noble, Aston Martin, Cosworth, various performance Audis, countless classic cars and many others. Their expertise with alloy manufacturing means they've also been heavily involved in the restoration of Bluebird K7. Pro Alloy Motorsport's website can be seen here: http://www.proalloy.co.uk/ Note that this intercooler for the A2 TDI is not available directly from the manufacturer. The intercooler that Pro Alloy Motorsport produce for the A2 uses the later 12mm MAP sensor. If your A2 currently uses the older 18mm sensor, a new 12mm sensor will be needed. If your A2 does not have a MAP sensor fitted in the intercooler (such as the TDI90), then a blanking plate for the sensor hole will be provided. All intercooler kits are supplied with bolts suitable for mounting the MAP sensor or the blanking plate. I think I am correct in saying that this intercooler is also suitable for the 1.2 TDI. If somebody could please confirm that the 1.2 TDI uses the same size intercooler as the 1.4 TDI, I would be very grateful. The total cost of the intercooler is £495, though this may reduce slightly if a particularly large number of orders is received. Postage costs are not included. This will vary depending on your location, but I guess it will be about £25 for most of Germany. The intercooler comes with a 12-month warranty against manufacturing defects, but, if installed properly, it should last as long as the A2 itself. The company who manufacture the unit have tested it to 100psi, so the A2 turbo will never break it! The manufacturer describe themselves as "world champions in customer goodwill", so if you have any problems outside of the standard warranty, they will be happy to help. Should you wish to purchase an all-alloy intercooler, please post in this thread and send me a private message containing the following information: - First name and surname - Full address (including street name, house name/number, town, postcode) - Email address - The number of intercoolers you wish to order - Your model of TDI (75PS, 90PS, 1.2 TDI) Once I have received this information, I will send you a private message and/or email with my payment details. I hope to leave this order phase open until 31st Aug 2017. Manufacturing will then begin and hopefully everybody will receive their intercooler by the end of September. Depending on demand, there may be further order phases in the future, but this cannot currently be guaranteed. As such, if you want one now or don't want to risk your current intercooler dying after manufacturing, get your name on the list! Whilst the all-alloy intercooler can be considered a performance product, it is also a product designed for reliability. Therefore, no matter what the nature of your relationship with your A2, this upgrade makes sense for all. Although I have been offering A2 services in the UK for many years and have many happy customers, this is the first time I have organised a group buy. So, if anyone here has any advice to offer, I'm very happy to listen. Mit freundlichen Grüßen, Tom Total orders received so far: 10 Moderators: If I have broken forum rules with this post, please let me know and advise me on how I can make this opportunity available for the members of this club. Thank you!