From the beginning, all Audi A6 C6 engines meet the Euro 4 norm, and after the facelift the Euro 5 norm. For this reason, the Audi A6 C6 will be remembered as a car with a wide range of engines. The offer of gearboxes consisted of 6 manual, Multitronic and Tiptronic. Gasoline in the first years of production had a problem with the coils. We’ve already tested it in £33,630 entry-level 2.0-litre TDI diesel trim, but if you need a bit more power – and don’t want to stretch to the £40,950 price of the 242bhp 3.0 TDI – there I'm having the same problem on a 2007 3.0 TDI engine. Fault code is showing up on bank 2. Took the car to a recommended Audi specialist and he replaced the control motor but after 60 miles the warning light came on again and the following codes are showing: OBD2 - confirmed: P2011 - Intake Manifold Runner Control Circuit/Open Bank 2 OBD2 - pending: What kind of oil does an Audi A6 take? The A6 is available in three different engines. The base diesel model comes with a 2.0-liter TDI motor, while the top-of-the-line model has a 3.0-liter TDI engine. The petrol version is powered by a 2.0-liter TFSI engine (compared to the 1.8T). 5 Post (s) Re: a6 3.0 tdi po401 insufficent flow – 27-09-2015, 11:03 AM. My insufficient flow message was from the nostrils blocked in the cast metal pipe leading to the inlet manifold, but as my EGR is operational I would get this. Cleaning process is highlighted here: Vay Nhanh Fast Money. #1 Hello, Since this is my first post on the forums, I'd like to say hello to everyone here - I hope that apart from gaining knowledge, I'll also be able to help out others in the future Don't have an Audi yet, but I'm looking at a 2005 A6 TDI with some engine issue. The seller claims there's never been any problems with either the injectors not the hydraulic chain tensioner and this problem started suddenly after he stopped to get diesel. He claims it's the hydraulic valve tappets making the noise, but for me this knocking sound is different than "playing" tappets. Please have a look at the short video: As we can see, the car is quite heavily smoking off the exhaust too, meaning that most surely the injectors need replacing - but my main concern is the loud knocking coming for the engine. It doesn't sound like a problem with the timing-chains / tensionser, I'm a bit worried it could be a connecting rod bearing or one of the main bearings that spun around (perhaps due to fuel delivery issues)? If someone would have any idea (or know) what this could be (or what to check/where to look to confirm) and the estimate costs involved in a repair, I'd much appreciate a helping hand. Many thanks for your attention and wishing all the best, ericsson #2 Welcome! OMG mate! This did not sound any near like an A6 More like a tractor and it's smoking like one also. I wouldn't know much to help you on that but it will be good to start with an VCDS scan. This can possibly exclude few issues like injectors. #3 Hello Kris and thanks for the welcoming Yup, I know it sounds horrible (and serious), that's why I'm trying my best a determining the cause of these noises. Obviously the injectors are gone, but that's a much smaller issue than the loud, knocking sound the engine is making. I'll try to do make another video today, as I'm scheduled to view the car this evening. Unfortunately at this moment there's no way for my to dy a VCDS scan due to not having any equipment - so all I can do is touch, see and listen. I'll try to rev the engine a bit higher than it's idle speed to see what's the reaction and does that help/chance the noise in any way. Perhaps this will help to try saying what might be the cause. I'd like to ask would anyone be able to advise on what to check, where to listen closely in order to either exclude or track a faulty sector of the engine? Cheers for any imput here fellas, ericsson Audi A6 C6 TDI Quattro specifications Engine l.: l Power: 165 kW Fuel type: Diesel 0-100 km/h: sec Avg. fuel consumption: l Specifications Engine Version: A6 C6 Modification: A6 TDI Quattro Year: 2005 - 2006 (2005, 2006) Engine l.: l Fuel type: Diesel Engine power: 165 kW (224 HP) Rated speed to: - Rated speed torque: Nm Max rated speed torque rpm to: - Max speed: 240 km/h Acceleration 0-100 km/sec: sec Number of cylinders: 6 Cylinder layout: V-form Valves per cylinder: 4 Transmission Drive wheels: All wheel drive Gearbox: Mechanical Gears: 6 Body Type: Wagon Doors: 4/5 Number of seats: 5 Weight: 1805 (2435 kg max) Length: 4933 mm Width: 1855 mm Height: 1459 mm Distance between the axles: 2843 mm Clearance: 0 Turning radius: m Luggage section Luggage capacity max: 1660 l Luggage capacity avg: - Luggage capacity min: 565 l Luggage section depth: - Luggage section width: - Luggage section sill height: - Luggage section height: - Roof load capacity: - Exploitation Fuel octane number: - Fuel tank capacity: - Disntance with one tank: - Consumption urban: l Consumption overland: l Consumption mixed: l Airflow drag coefficient: - CO2 emission: - Emission standard: - Tires and Wheels Spare wheel type: - Front tire size: - Rear tire size: - Tire speed index: - Front Wheel Size: - Rear Wheel Size: - More modifications Sedan Wagon Contacts Users Partners Sitemap Spare parts Questions and suggestions to Terms and Conditions Privacy policy Terms and Conditions Privacy policy © 2022 Auto Data 24 Catalog information is collected from publicly available sourcesTerms and Conditions Privacy policy ©2022 Auto Data 24 Checking regularly all tyres on your Audi A6, including your spare tyre, once a month or before a long trip is recommended. Model / EngineTyre SizeFront tyre pressureRear tyre pressureAudi A6 TFSI225 50 R17 94Y3030Audi A6 TFSI225 55 R16 95Y2929Audi A6 TFSI245 40 R18 97Y XL3030Audi A6 TFSI245 45 R17 95Y2929Audi A6 MPI / Quattro205 60 R16 96W XL3632Audi A6 MPI / Quattro225 50 R17 94Y3229Audi A6 MPI / Quattro225 55 R16 95Y2929Audi A6 MPI / Quattro245 40 R18 97Y XL3229Audi A6 MPI / Quattro245 45 R17 95Y2929Audi A6 TDI / Quattro225 50 R17 98Y XL3832Audi A6 TDI / Quattro225 55 R16 99Y XL3529Audi A6 TDI / Quattro245 40 R18 97Y XL3832Audi A6 TDI / Quattro245 45 R17 99Y XL3529Audi A6 FSI / Quattro225 50 R17 98Y XL3532Audi A6 FSI / Quattro225 55 R16 95Y3330Audi A6 FSI / Quattro245 40 R18 97Y XL3532Audi A6 FSI / Quattro245 45 R17 95Y3330Audi A6 V8 Quattro225 50 R17 98Y XL3632Audi A6 V8 Quattro245 40 R18 97Y XL3833Audi A6 V8 Quattro245 45 R17 99Y XL3632Audi A6 V8 Quattro255 35 R19 96Y XL3833Audi A6 TDI Allroad235 55 R18 100Y3535Audi A6 TDI Allroad255 40 R20 101Y XL3535Audi A6 TDI Allroad255 45 R19 100Y3535Audi A6 TFSI Allroad235 55 R18 100Y3535Audi A6 TFSI Allroad255 40 R20 101Y XL3535Audi A6 TFSI Allroad255 45 R19 100Y3535Audi A6 FSI Allroad225 55 R17 97W3535Audi A6 FSI Allroad245 45 R18 96Y3232Audi A6 FSI Allroad245 45 R18 96Y3232Audi A6 TFSI Avant205 60 R16 96W XL3633Audi A6 TFSI Avant225 50 R17 98Y XL3230Audi A6 TFSI Avant225 55 R16 95Y2929Audi A6 TFSI Avant245 40 R18 97Y XL3230Audi A6 TFSI Avant245 45 R17 95Y2929Audi A6 TDI / Quattro Avant225 50 R17 98Y XL3832Audi A6 TDI / Quattro Avant225 55 R16 95Y3530Audi A6 TDI / Quattro Avant245 40 R18 97Y XL3832Audi A6 TDI / Quattro Avant245 45 R17 99Y XL3530Audi A6 TDI / Quattro Avant255 35 ZR19 Y XL3933Audi A6 FSI Quattro Avant225 55 R17 97Y3633Audi A6 FSI Quattro Avant245 45 R18 100Y XL3633Audi A6 FSI Quattro Avant255 35 R20 97Y XL4138Audi A6 FSI Quattro Avant255 40 R19 100Y XL3633Audi A6 FSI Quattro Avant255 40 R19 100Y XL SSR3633Audi A6 FSI / Quattro Avant225 50 R17 98Y XL3532Audi A6 FSI / Quattro Avant225 55 R16 95Y3230Audi A6 FSI / Quattro Avant245 40 R18 97Y XL3532Audi A6 FSI / Quattro Avant245 45 R17 95Y3230Audi A6 V8 Quattro Avant225 50 R17 98Y XL3532Audi A6 V8 Quattro Avant245 40 R18 97Y XL3633Audi A6 V8 Quattro Avant245 45 R17 99Y XL3532 Our promises 100% custom made tuning file guarantee Tested and developed on a 4x4 Dynamometer Best possible performance and results, within the safety margins Decrease of fuel consumption New performance after custom chiptuning Dynograph Create your own account at and benefit Start benefitting from the special Audi tuning files rates and create your own account today at Please find also our complete chiptuning tools / tuning tools packages. 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