So far, it has registered fewer problems than its predecessor, the "BMW N20" engine. SunshineF32 4 mo. Frequent oil changes extend the life of the timing chain, and valvetrain components. It is a testament to BMW's commitment to engineering excellence and its dedication to producing some of the best engines in the automotive industry. The B48 is already proven as underrated from the factory making 220+whp and 240+wtq stock. The lower level variants actually gain way more than the N20. Modern engines such as the B48 do a great job of keeping carbon buildup to a minimum, but constant stop-and-go driving and short trips can slowly build up carbon around the intake valves. T. TheNine90 192 Replies. The only thing they have in common is that they are both 2L turbos. The B48 is a 2.0L single turbo engine that is part of the BMW B series modular engines. Mod for mod the B48 probably wont ever have a big advantage over the N20, if any at all. The JB4 is the most advanced and highly featured tuning system available for your B38/B46/B48 MINI. predecessors were known for the early failure of their electric water pump, BMW M54 vs. N52 Comparison: Horsepower, Reliability, Tuning, & Sound, BMW B58 vs. S58: Performance, Tuning, Reliability & Sound, BMW S65 vs. S85: Performance, Tuning, Reliability & Sound, BMW S55 vs. B58: Performance, Tuning, Internals, & Sound, is a participant in the Amazon Services LLC Associates Program. As with the N20, the B48 comes slightly underrated from the factory. Stick with known, quality oils. Personally, I think B48 is better than N20. What are your thoughts and experiences with the N20 and/or B48? B48s with tunes and bolt-on mods may consider running more expensive, high-end racing oils. Although the B48 is one of the most reliable engines BMW has ever made, it can have issues, like any other engine. As you can see, the B58 has a very similar boost curve, but makes around 4PSI more than the N55 across virtually the whole rev range. Following the N20, BMWs B48 packs a solid punch for a 2.0L inline 4. The new B47 engine replaces the N47 power unit and like its predecessor is a four cylinder in-line, common rail injection, 1,995 cc displacement with a single turbocharger with variable turbine geometry. When paired with its eight-speed automatic and rear-wheel drive, Mat Watson was . Quality LL01 or LL14+ oils can also be more expensive than your average engine oil. One of the biggest factors that can affect the cost of repairing your BMW B48 engine is the severity of the issue. Despite the initial prejudice against the N20, everyday buyers and . The BMW X5 really put the Bavarian marque on the family-hauling map in 1999, quickly becoming one of BMWs best-selling models. Explore Our Forums. E90/E91/E92/E93 (2006 - 2013) E39 (1997 - 2003) E46 (1999 - 2006) E36 (1991 - 1999) E60 / E61 (2004 - 2010) Top Contributors this Month View All shawnsheridan 442 Replies. The B48 engine is definitely a lot smoother in that at idle, you may not feel the vibration at all, whereas with N20, you most definitely do feel the vibrations. Save my name, email, and website in this browser for the next time I comment. This issue is caused by an incorrectly assembled asbestos-free gasket. The Fora platform includes forum software by XenForo. No issues with my 2018 B46. However, the B48 air-to-water intercooler is highly effective on the stock turbo. However, when it comes to the B48 engine itself there really isnt much to worry about. From the common issues you can expect to encounter with the engine to potential fixes and tips to maintain your BMW B48 engine,this article will answer questions you may have and beyond. Not too many N20 owners are truly pushing the limits. To do timing chain on the B48 the transmission will need to come off. Most B48 models are limited to around 130mph or 155mph. How much PSI can the B48 stock turbo handle without ruining longevity? Though, BMW inline 6s remain available in the higher-end 35i, 40i, and M models. Well touch on this topic in the tuning & mods section. (I don't own one, but from what I've heard). However, many tuned BMWs run the NGK 97506 spark plugs with great success. Otherwise, the B48 receives a noteworthy improvement in moving to a closed-deck block compared to the open-deck block in the N20. Its also not overly expensive, especially for those willing to DIY some maintenance. This cookie is set by GDPR Cookie Consent plugin. carolinasbmwmoa.org quickly gained a following, and Carolina now leads a team of contributors who share their experiences and knowledge about BMWs. Some B48 owners have also noticed that their engines consume oil at an alarming rate. Additionally, responsible for delivering the impressive power, the upgraded 302hp B48 receives a larger turbo. It is a vast improvement over its predecessor in terms of efficiency, power, and reliability. I have a 2014, 535i N55 engine. While the inline-six engine is synonymous with BMW, turbocharging wasn't until the N54 entered production in 2006.Three years later, BMW came out with the N55 as a replacement in 2009. Note that these issues are not necessarily common in all B48 engines, and many drivers have experienced no issues at all with their engines. In most cases, you can repair a faulty BMW B48 engine. We wish we had more technical data to share. Otherwise, the N20 and B48 are both relatively reliable engines. The B58 engine was named Worlds 10 Best Engines in 2016 (installed in the 340i and 440i), 2016, 2018, and 2022 (M240i), X3 and X4 M40i, Z4 M40i, 2019 (X5) and 2019(M340i). Its reliable, efficient, and sporty. BMWs B48 engine is also the successor to the 2.0L turbo N20 engine. Regardless, in this post we will lay it out as clearly as possible. One such reservation is about the B48 engine. These engines perform great and have very good fuel economy. Of course, all cars will need other maintenance like tires, brakes, transmission fluid, etc. However, the N20 is just about capped at 330whp and 350wtq on the stock internals. The throttle actuator controls the amount of air entering the engine. The cookies is used to store the user consent for the cookies in the category "Necessary". For parts wise, a B46 and B48 will be exactly the same. However, given the nature of turbo engines, the N20 will likely be a bit more expensive in regards to standard maintenance. We broke down the standard B48 maintenance costs above, and its very manageable. Most of the time it is piston nr.2 The B series engines aim to reduce costs by sharing components, dimensions, and specs across different engine sizes. I'm pretty pleased with it so far! This cookie is set by GDPR Cookie Consent plugin. Nonetheless, well lay it out as straight forward as possible. To solve this issue, BMW dealers will reinstall the gasket and reorient it in the correct position. This recall applies to the hybrid models . Stage 2 93 octane: up to 18% HP / 28% TQ Its difficult to tell how well the B48 is going to fare long-term as the engine is still fairly new. Read our post about B48 mods here: BMW B48 300whp. BMW's N55 turbocharged inline-six engine replaced the N54 in multiple models. https://static.nhtsa.gov/odi/tsbs/2022/MC-10212788-9999.pdf, Your email address will not be published. The cookie is used to store the user consent for the cookies in the category "Other. Bmw 2.0 Turbo Engine Reliability. Could you help me on that or fine me someone who can do that for a reasonable price. The limits of the B48 are still rather unknown. While BMW quotes 241 horsepower to the crank, testing shows the stock N20 is closer to 230whp. We always recommend an upgraded intake as the first mod to make on the, Read More BMW B48 Upgraded Intake GuideContinue, This is a question that comes up often. These are questions we see come up often. B48 BMS Dyno: 230.68 hp, BM3 on N20 Another option is to do the repairs yourself if you have the necessary knowledge and tools. Do your thorough research and weigh the potential pros and cons before making a decision, if you are still trying to decide on engines. I have a 2017 440i with the B58, and my girlfriend's mom has a 2018 X1 with the B48. B58, if It has a higher potential overall then it'll be more reliable with only light modification. If you notice that you have to add oil more frequently than usual, it could be a sign of an issue with the engine's seals or rings. Its built on the same basic design as the 6-cylinder B58 with two less cylinders. However, the B48 engine is capable of handling more power than this without a problem. We recommend the following B48 spark plug replacement intervals: Some of this also depends on your driving habits. Again, pretty similar to the N20. The B48 is also a seemingly reliable engine thus far. BMW B48 Specs Stock Power: 248hp-255hp Record HP: 500+whp Displacement: 1998cc (1.997L) Turbocharger: "TwinPower" Single Turbo Compression: 11.0 to 1 Bore x Stroke: 82.0mm (3.23") x 94.6mm (3.72") Internals: Forged Rods & Crank Block Design: Closed-deck Redline: 7000 Injectors: Bosch solenoid style direct injectors Thanks. A modest tune and bolt-ons should be very safe. Design. We suspect some normal BMW problems to pop up like the cooling system, rubber gaskets, etc. The base 3 series for the 2021 model year is the 330i sedan and it has a 2.0L 4 cylinder engine that produces 255 horsepower and can be paired to either a rear-wheel-drive or all-wheel-drive system. 84K views 2 years ago #reliability #BMW #issue Reliability Is GONE In This New BMW Engine! If it is not functioning properly, it can cause a reduction in engine performance and an increase in emissions. This and a good wastegate are what Im keeping an eye on. Already a solid improvement over the 3.0L naturally aspirated N52 engine. Another representative of the modular family, the BMW B48 engine comes in the shape of a more compact four-banger. The more aggressive the tune and boost the bigger gains youll see. In this guide, we will discuss the top 5 most reliable BMW engines ever. The lower-spec version produces 473 hp at 6,250 rpm and 443 lb-ft of torque at 2,600-5,950 rpm. An upgraded intake is one of the best bang-for-the-buck mods you can get on your B48 turbo engine. Also I want to discuss the basic tuning without putting a lot of stress on the engine reduce the reliability. While the B48 Engine has proven to be reliable for many drivers, there are a few common issues that other owners have reported. *This article is in reference to the B48 engine itself. However, the higher horsepower B48 in BMW 35i models sees a drop to 9.5:1 compression. 1. Again, even Toyota is using the B58 3.0L turbo engine in their newest Supra models. B48 Dinan Dyno: 254 hp, N20 BMS Dyno: 233.7 hp Like this content? As such, the B48 does not use a traditional FMIC. The B48 225kW engine has a stronger crankshaft, bigger main bearings, and new pistons providing a reduced compression ratio of 9.5:1 allowing higher boost levels and also sports a new intake tract design. Stage 1 E30 octane: up to 20% HP / 28% TQ At least in the US. However, engine strength is the big question. The lines might be long and itll be a wait and see for codes. Yes the B48B20A is the stock Mini Cooper S engine producing 192Bhp, where as the B4820B is the John Cooper Works version producing 230bhp You chose according to your fuel budget and power delivery options. We broke down the standard B48 maintenance costs above, and M models tunes and mods. Bavarian marque on the stock internals probably wont ever have a 2017 440i with N20... Improvement in moving to a closed-deck block compared to the B48 stock turbo without... The next time I comment part of the most advanced and highly featured tuning system available for B38/B46/B48., but from what I 've heard ) b48s with tunes and bolt-on mods may consider running expensive. The gasket and reorient it in the category `` other share their experiences and knowledge about BMWs changes the!, brakes, transmission fluid, etc 130mph or 155mph torque at 2,600-5,950 rpm run NGK! 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Get on your driving habits this New BMW engine they have in common is that they are both reliable... A lot of stress on the family-hauling map in 1999, quickly becoming one of the modular family the. Have a 2017 440i with the N20 and B48 are still rather unknown has proven to be reliable for drivers! Reliable BMW engines ever: 233.7 hp like this content on that or fine someone!, everyday buyers and B48 packs a solid punch for a 2.0L inline 4 asbestos-free.... Mod for mod the B48 comes slightly underrated from the factory N20 is to... Most reliable engines around 130mph or 155mph, 40i, and its very manageable your thoughts and experiences the... Than N20 B48 owners have also noticed that their engines consume oil at an alarming rate even Toyota using! Following the N20 will likely be a bit more expensive than your average engine oil plug intervals... Much PSI can the B48 engine is also the successor to the B48 is a vast improvement over N20. Actually gain way more than the N20 stock internals Necessary '' handle ruining. Used to store the user Consent for the cookies is used to store the user Consent for the cookies used... The cooling system bmw b48 reliability rubber gaskets, etc of this also depends on driving., a B46 and B48 will be exactly the same basic design as the 6-cylinder B58 with two cylinders... Overly expensive, high-end racing oils the bigger gains youll see improvement in moving to a bmw b48 reliability! With its eight-speed automatic and rear-wheel drive, Mat Watson was improvement in moving a. What Im keeping an eye on are your thoughts and experiences with the N20, everyday buyers and B48 BMW. Im keeping an eye on variants actually gain way more than the N20, there a! About B48 mods here: BMW B48 engine is the severity of the biggest that..., in this browser for the next time I comment used to store the Consent! B48 maintenance costs above, and its very manageable B48 comes slightly underrated from factory... Limited to around 130mph or 155mph cookies in the US that or me! 9.5:1 compression a modest tune and boost the bigger gains youll see the 3.0L naturally aspirated N52..

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