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Thanks Gareth I was going to buy a Lucas unit from ECP until they messed around with the website price, I've located a remanufactured Bosch at a much better price. It's unfortunate that ECP have the biggest range locally to me, they're OK for consumables but I try to avoid them for anything else. Derek

Welcome to the forum you'll find the members on here are a friendly and helpful bunch 🙂 if it's an SD card type then they can be bought off eBay.

Richard Just as an addition to my previous post. I have just had a look and Pirelli do the Scorpion P Zero all season tyre in 285/40 R22 110y size as well as the 21 inch tyre so they would fit your Q8. Kwik fit are selling them for about £350 per tyre so a a little cheaper than the Continental sports contact tyre that you have been quoted by your Audi dealership. I live in Hampshire and my local garage was able to find and fit my tyres for quite alot less. And I would highly recommend them. So....in my humble opinion....you would be getting a far better performing tyre that adapts to more conditions for less dosh.

Morning Richard Not sure whether this will help at all as you seeemed to have decided on what tyres you are going to use as replacements. I have a 2020 Q8 55TFSI which I bought new and came with Hankook tyres as the Factory Fitted original tyres. I found them to be an excellent choice so the Audi engineers clearly knew their stuff. They were quiet and had good grip both in the wet and dry and as an added bonus, they are substantially cheaper to replace compared to the " Premier League " manufacturers like Michelin, Pirelli etc. However, I drive to Deutschland alot in my car and as the law there dictates that winter or all season tyres must be fitted between the months of October through to March, I had to replace the Hankooks with all season tyres after 15,000 miles as my next trip to Germany is later this month. So, I had fitted a set of Pirelli P Zero Scorpion all weather tyres. They are expensive ! Think I paid with balancing more than £1300 . Also please bear in mind that as my Q8 was an S line model, the wheel size was 21" although the tyre width and profile is the same as your car. In 3000 miles I have found the Pirellis to be quite superb. Brilliant wet weather grip and no noisier than the Hankook summer tyre . Also....I like the look of them ! So, as an alternative, you might just have a look at the Pirellis all seasons. I know we don't get too much snow and ice here in the U.K. but they do give you extra grip if you do encounter snow or ice .....probably next winter now. Just my 2 pennies worth.

Shane. I am not familiar with that particular engine so I am having to guess a little. The red ringed pipe, (assuming you mean the black rubber hose, not the corrugated metal clad one,) is probably a coolant pipe and looks to have a sizeable split. If that is where the coolant is coming out it must have sprayed all over the engine, possibly shorting out any number of electrical systems. That alone could be why the engine does not fire. The green ringed hose looks to be connected to the inlet manifold or plenum chamber. If so it should only have air in it not oil, indicating turbo wear or damage. That oil also may be a factor in the engine not firing by fouling of the plugs. As I said earlier I am not certain I have identified those parts correctly, so lets wait for confirmation from someone with definite knowledge of the engine. I have to add that although you may not have had a high temperature showing on the dash, there is a real chance that the engine has actually overheated by running it with inadequate coolant. The lack of circulation means the hot water may not have reached the temperature sensor, leading you to mistakenly believe the temperature was fine. I guess you know the consequences for the engine if that is so. Anyone else care to chip in with an opinion?