SULEV stands for Super Ultra Low Emissions Vehicle. First a little background. Dedicated to making Supercars look slow, Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window). I've got someone willing to sell me a great condition 2007 328i w/ 90K miles at a decent price but I ran it through the VIN decoder and it has an N51 engine. The easiest identification is from the emissions label located on the underside of the hood -, N51 vs. N52 Differences Chart: hide. Certain G series models began receiving the updated B58TU1 in 2019. N51's are also not only California engines they are Northeastern United States engines. If the car is out of warranty, I would suggest that you apply some DIY, at this point. 3 comments. Q BMW developed a specific engine package that meets the SULEV standard - the BMW N51. BMW Service Bulletin SI B 13 01 07: If the car is under warranty, I would suggest that you ask the dealership to address this bulletin. Is there anything I should be looking out for? If it were up to me, I'd look at the possibilities such as, Upgrades, Capabilities, and aftermarket. It is the first engine in the new N52 series which also includes N52B25.The N52B30 engine has 6 cylinders and is totally different from previous versions of M54B30.It is equipped by popular Double-VANOS camshaft and light-weight aluminum-magnesium block of cylinders, another crankshaft and lighter connecting rods and pistons. Are you unsure if your 2006-2011 E82/E90/E92 model is a SULEV model or not? In California particularly, a certain percentage of vehicles must be sold as SULEV spec or the manufacturer faces hefty fines. share. N54s will have problems, N55s will have problems, Every Engine will have problems. Should I stay away? An online guide to owning and modifying your BMW. This page should help you identify a SULEV E82/E9X model. Click below for Lubro Moly Ventil Sauber: Tags → E39, E46, E53, E60, E61, E63, E64, E65, E66, E70, E71, E82, E84, E85, E90, E91, E92, E93, Engine, X3, X5, X6, Z3, Z4, Categories → 3 Series 99-05 - E46, 3 Series Conv 07-13 - E93, 3 Series Coupe 06-13 - E92, 3 Series Sedan 06-13 - E90, 5 Series 97-03 - E39, 5 Series Sedan 04-10 - E60, 5 Series Wagon 04-10 - E61, 6 Series Conv 04-10 - E64, 7 Series 02-09 - E65, 7 Series Li 02-08 - E66, X3 04-10 - E83, X5 07-13 - E70, X5 99-06 - E53, X6 07-13 - E71, Z3 Roadster 96-03 - E36/7, Z4 Roadster 02-08 - E85, Changing automatic transmission fluid & filter, Replacing & upgrading the engine air filter, Replacing the serpentine belt & idler pulley. Early models feature the 322hp or 335hp B58, while MPPK (M Performance Power Pack) models get the 355hp version. The bulletin basically talks about carbon deposits in the intake tract, on the injector tip and in the combustion chambers. Is the N51 SULEV version of the E90 328i much more expensive to maintain compared to the N52? Still have a question? It is the last of a tradition from BMW that dates back to 1968. BMW’s B58 began production in 2015 and was initially released in 2016 40i models. Common BMW B58 40i Engine Problems. The 4 Most Common Problems with BMW’s N53 Engine. The TU1 update is mostly intended to improve emissions. On the previous M56 SULEV and M54 engines in the E46 you could see a visual difference in the valve covers of each engine. While there are some specific rough idle issues for the M54 and M56 6-cylinder engines (such as the DISA, or Adjuster Unit, on the intake manifold), I did not find much on historical rough idle problems for the N52 engine. The BMW N53 engine was produced from 2006-2013. report. I’d like some feedback please, I recently purchased a 2006 530i which idles rough but runs fine. It's a standard enacted by the California Air Resources Board (CARB) and similarly adopted by the federal government and other states. In these vehicles, the bolted connection on the housing of the variable valve timing unit (VANOS) adjustment units could become loose. Super Ultra Low Emissions Vehicle, just take off the Super for the other acronym. BMW developed a specific engine package that meets the SULEV standard - the BMW N51. A Your email address will not be published. November 10, 2019 By Nick Cavazos 13 Comments. I’d go through two cans of each (four tanks of fuel). The bulletin is not unique to the N52 engine. Should I be concerned? In June 2014, a recall was issued for BMW E82 1-Series Coupes that had N51, N52 or N55 six-cylinder petrol engines and were available for sale from 1 October 2009 to 30 April 2012. BMW X5 Reliability, Problems, & Driving Experience, BMW B58 Water Methanol Injection (WMI) Guide, BMW N54 Water Methanol Injection (WMI) Guide, Tuning Pro – Automotive Tuning & Performance Guides, Crankcase re-design (crankshaft and walls), Updated cylinder head with integrated manifold, Engine hesitation and bogging, especially at lower RPM’s. Use one can of each product in alternating tanks of fuel. Copyright © 2009 - 2020 Bavarian Autosport. The engine in your 2006 model 530i should be the N52, which is the latest 6-cylinder gasoline engine design, in the US. The systems aren't perfect and never fully will be. Based on extensive … BMW N52B30 engine reliability, problems and repair. It also covers the N51, M54, S54, M56 and N62 engines (basically all of the late model low emissions engines). The N51 is an SULEV Engine opposed to a N52 which is a ULEV. Nearly all BMWs qualify as LEV (Low Emissions Vehicle) but under law BMW's entire model range must meet certain low emissions targets. BMW Rough Idle bulletin. While there are some specific rough idle issues for the M54 and M56 6-cylinder engines (such as the DISA, or Adjuster Unit, on the intake manifold), I did not find much on historical rough idle problems for the N52 engine. save. Visually the N51 and N52 are identical. If your E82 128i, E90 328i, or E92 328i was originally purchased in California, Connecticut, Maine, Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont, Washington state, and Washington D.C. it will most likely come with the N51 SULEV engine. I’d recommend an application of the Lubro-Moly Jectron (fuel system & injector cleaner) and the Ventil Sauber (carbon cleaner) as a first course of action. To raise their average while selling high-performance cars like the M5 and X5M, BMW has special SULEV models. I thought i’d found a good second hand engine for sale but turns out its knackered … Having the SULEV spec is not a bad thing but certain components are different than standard N52 engines and you should be aware if you have an N51 engine. Click here to receive our award-winning catalog for free... Click here to get the scoop on money-saving deals and more... We have lots of helpful videos posted on this blog - plus some fun ones, too! Buying Help. The naturally aspirated straight six has been a major component to BMW’s formula, which also includes rear wheel drive, and near 50/50 weight distribution. Does anyone have any recommendations for BMW engine rebuilders? Having the SULEV spec is … Give it a couple thousand miles and then see if the idle is improving. If you're going to keep it bone stock then just look over some reviews and see whats going wrong. It is my understanding that if you order a car in the Northeast and DON'T specify you want the N52, chances are extremely great you will receive a BMW with the N51. If your rough idle is due to carbon build-up, the use of these products will improve the idle as the carbon is dissolved and removed. (originally published by BMW then modified by me). BMW E90 ULEV (N52) vs. SULEV (N51) engine - cost to maintain? Why does it idle this way?

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