Hello. Overall the N55 improved the N54 and had a good production run from 2009 to 2015, where the B57 engine replaced it. History, Power & Specs of the N55 Engine. My question is, is there a … The complaint is a knocking sound when the engine is accelerated. We have received your request, and our support team will be in touch with you soon. Just a quick PSA: Wheel lug bolts should not be used as oil drain plugs! Bavarian Specialties. Have a Happy Thanksgiving and drive safely. 1-866-651-2992. The N55 replaced the BMW N54 engine and was introduced in the F07 5 Series Gran Turismo.. While the N54 was BMW’s first mass-produced turbocharged engine, the N55 was their first engine to use a twin-scroll turbocharger. Never seen any other engine have oil starvation like these. It’s really loud and there is quiet a bit of metal in the oil. sharperedgeengines Engines And Transmissions Search. BMW is aware of the issue. Repair Summary This article gives detailed instructions on replacing the fuel injectors in a BMW N55 twin turbo engine. Bore measures at … The first BMW engine fitted with a Twin Scroll turbocharger and it boasted valvetronic variable valve lift control and had new injectors over the N54 it replaced! Dear Customer, Thank you for contact sharperedgeengines. The N55 was BMW's first straight-six engine to use a twin-scroll turbocharger.It also won three straight Ward's 10 Best Engines awards in 2011-2013.. Usually cyl 1 as well. BMW I removed the drive belt and retested just to be sure and the noise was still there. A BMW N55 engine squeal repair includes replacing the tensioner and idler pulleys, as well as the main accessory belt. N55 engine replacement due to failed crank shaft. We got the last one in the country from BMW! Ok this is going to be a long post with a lot of pictures,,,,N55 check engine light on,,,,faults were valvetronic motor and valvetronic won't reach its limit,,,,performed the test plan,,,operated the valvetronic motor test which passed the test twice,,,but when I started the engine it would fail again ,,,,which tells me … I've seen over a dozen n55's fail after OFHG replacement. When you get it back together you will want to crank it for a while with the injectors disabled before letting it run to build up oil pressure. This valve cover from BMW comes with everything you need to replace the whole system in your … ... BMW E82 135i N55 3.0L Engine Parts & Accessories Categories. The Basics. We continue to hold the belief here at the Repair Guide that the most annoying sound that is ever generated from the motors in our BMWs is engine squeal due to worn pulleys and/or drive belts. # n55 # bmw # bmwusa. Close. You might already be experiencing the symptoms of a failed valve cover or PCV system on your BMW N55 engine without even noticing it. Even though we used a 2011 335i to perform this repair, this article can be applied to any BMW vehicle with the N55 twin turbo including the 1,3,5,7,X3,X6 and Z4 models minor modifications to … November 25, 2020 at 5:21 PM. I am working on a 2013 X5 with the N55 engine. The BMW N55 is a turbocharged straight-six petrol engine that began production in 2009. To cover some basic information, the BMW N55 is an all-aluminum 3.0L straight-six engine with dual overhead cams, variable valve timing, and variable valve lift. Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most complete inventories of engine parts and accessories for German motorcars. ... to various accessories, including the alternator, … It sounds exactly like a rod bearing. 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