Accordingto Audi A6 owners, the 2.0 TFSI engine is generally the most reliable engine for the A6. Best Engine For Fuel Efficiency: 1.8 TFSI; The 1.8 TFSI is one of the most fuel-efficient petrol engines for the Audi A6. The C7 Audi A6 1.8 TFSI uses this engine and achieved a claimed combined fuel economy of 5.7 L/100 Km / 50 MPG UK / Unfortunately the most frequent issues with Audi engines are ignition coil packs. They convert the 12 volts from the battery into the 20,000+ volts required by spark plugs to start an engine’s combustion process. The 1.8 TFSI and 2.0 TFSI engines in the EA888 series are notoriously unreliable due to their excessive oil consumption TheAudi A5 is a big, classy coupé, that's more cruiser than sports car. Stylish looks. Big boot. Efficient engines. Dull steering. Tight in the back. Limited luggage space. Looks-wise, that 1. Hi All, So the reliability of the CDNC 2.0T fsi engine strikes again. I bought my 2010 2.0Tfsi quattro avant last October from an independent with 92k on the Theengine problems with the B8 were due to poor engine design rather than reliability. This looks also to be the case at first glance with the B9. Reactions: Tfsi gone. I hope Audi sort the 2.0 TFSI issues out, unlikely as there now in production. I don't really fancy the diesel route again, too many short journeys. Model Audi A6 2.8quattro. Posted 25 September, 2009. NO FSi engine should be run regularly on 95RON fuel. ALWAYS ALWAYS use 98RON min, SHell V-Power the best!! The FSi system will not operate in stratified mode on 95RON and due to the high comression/lean burn cycle, the engine can incur damage of 95RON is used. A42.0 TFSI - New Engine Required. (Oil Consumption Fixed -> Pump Failure) It has had a colourful 14 months, we bought it second hand approved used through Audi. It turns out it was one of the oil slurping engines so last September they rebuilt the engine with new pistions/rings. AUDIA3 (8P1) 2.0 TFSI quattro Hatchback Petrol 09/2004 08/2008 AWD 16 200 147. www.ebay.co.uk. Just found these on eBay, If anyone has tried them already or can recommend anywhere else that sells, that they have already tried for a period of time would be greatly appreciated for recommending to people in the future. The5 Most Common Audi Q5 Engine Problems. Meet Trey. LinkedIn; SQ5 TFSI Quattro, Q5 55 TFSI e Quattro and it went through a facelift in 2021 with more aggressive lines. The Audi 8R Q5 came with 3 engines: 2.0T FSI Quattro, 2.0 TDI Quattro, and 3.0TDI Quattro and three different transmissions: 6-speed manual, 7-speed tiptronic, 88 506 posts. Posted January 10, 2019. Has anybody had the high consumption issue with any 2.0 - 1.8 tfsi engines? 2009 Plate using around 1 litre of oil every 300-600 miles - according to the customer. I sold the car 4 months ago and the customer was complaining of the oil light keep coming on. We had it back after 3500 O9CUK.