A tune-only can bring spark plug life down to about 30,000 miles. *Well write a B48 common problems post in the future. You may also notice your engine misfiring. If you do long highway drives often then you can get away with the higher 8,000 or even 10,000 mile OCI. Based on the B58. It's reliable, efficient, and sporty. 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. This article and page is such a joy to read. 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. A modest tune and bolt-ons should be very safe. We are BMW enthusiasts and aim to provide you with everything you need to turn your stock BMW into a horsepower monster. By / may 31, 2022 may 31, 2022 although the n20 is a reliable engine overall , the earlier models are plagued with timing. If left unchecked, the engine could run low on coolant. Again, pretty similar to the N20. You can say we are somewhat N54 fanatics. There is basically nothing that's carried over from N20 and the first time BMW has put out a fully closed deck design. This mostly applies to N20s produced prior to 2015. I'm pretty pleased with it so far! Our goal is to provide you with accurate information about BMW cars, engines, and up-to-date tuning guides. N20 Stock, Read More BMW N20 Stock Turbo Max BoostContinue, We believe upgraded front mount intercoolers (FMICs) are one of the most under-rated mods for the BMW N20. That said, were likely writing this article too soon. Subscribe for updates! However, if the damage is severe, it may need to be replaced. Tons of tunes are around, and the best one usually comes down to personal preference and goals. Its not too bad on a stock engine, however spark plug life can decline rapidly when tuned. SunshineF32 4 mo. Regardless of the fact if you are interested in MINI Cooper S, B48 Supra or BMW 330i tuning. Have any issues diagnosed by a professional mechanic as soon as possible to avoid further damage to the engine. This is not meant to be a knock towards the N20s performance. Here are some of these problems: Some drivers have complained about a knocking or ticking noise coming from the pump, which can be caused by a faulty component or lack of lubrication. But opting out of some of these cookies may affect your browsing experience. If youre over 100,000 miles on your B48-powered BMW, a walnut blast is recommended. The internals and design are plenty strong to surpass 200,000 miles. These engines perform great and have very good fuel economy. Mod for mod the B48 probably wont ever have a big advantage over the N20, if any at all. The B48 is already proven as underrated from the factory making 220+whp and 240+wtq stock. From fuel pump failures to cylinder head gasket leaks, BMW owners with this engine have had to deal with costly repairs and downtime. Ive only covered 30k and its a 2017 model. Theyre valid questions, however there is no perfect answer. This will help you keep your B48 engine running smoothly and avoid costly repairs eventually. Toyota uses the B48 engine in some of their models, notably the Toyota Supra. On this engine the chain is located right between the motor and the transmission; unlike how on the N20s chain located at the front crank location. Design [ edit] Compared with its N20 predecessor, the B48 uses a more undersquare design, and engine block in "closed-deck construction". Installed bootmod3 stage 1 93 on it this weekend. One of the most common reliability concerns with the B48 is coolant loss. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking Accept, you consent to the use of ALL the cookies. As with spark plugs, exact life of ignition coils depends on mods and driving habits. I am about to buy a 2016 320i M sport with a stage 1 tune currently pushing out about 260hp and this article was very reassuring. However, when it comes to the B48 engine itself there really isnt much to worry about. Why? The BMW B58 is a turbocharged straight-six engine, which began production in 2015. . Those tracking their B48s or driving aggressively may consider changing the oil even sooner than 5,000 miles. Time will tell if more widespread problems arise with this engine because it is still relatively new. carolinasbmwmoa.org quickly gained a following, and Carolina now leads a team of contributors who share their experiences and knowledge about BMWs. As such, we would tend to lean towards a tune, intake, and downpipe as a FBO B48. Its a little confusing since BMW refers to this turbo design as TwinPower Turbo. Ignition coils also wear pretty quickly on turbo engines like the B48. It will, however, add a lot of stress to the turbo and engine. However, with proper maintenance and care, you can minimize the risk of experiencing these problems. Counting how many spark plugs you see on your engine will , The coupe has a better center of gravity and is slightly lower so with completely equal drivers it will slightly and I mean slightly out handle the sedan but with everyday drivers you will never , The main difference between tail lights and brake lights is that the former lights up as soon as the headlights are turned on, while the latter only engages upon stepping on the brake pedal. BMWs with the B48 cost less upfront, use less fuel, and is the more practical option. The B46 is the Super Ultra Low Emissions spec (SULEV) and that is the standard engine in the US market. Yes, we believe the BMW B48 is a pretty reliable engine. This is usually associated with a difficult-to-spot coolant leak. I've replaced a couple of water pumps but have yet to see one leak oil. Required fields are marked *. Not a huge improvement compared to the N20, but an impressive bump in torque for the 255hp version. https://static.nhtsa.gov/odi/tsbs/2022/MC-10212788-9999.pdf, Your email address will not be published. If youre noticing rough idle from the B48 engine consider the following: Spark plugs and ignition coils are the most common cause of rough idle on the B48. This cookie is set by GDPR Cookie Consent plugin. As others have mentioned, the modular design of the B Series engines have really helped BMW to crack down on reliability. The S58 engine, which was released in early 2019, is the high performance version of the B58. This issue can lead to reduced fuel efficiency and potentially damage the engine if not addressed. I'd love an F31 with the B48 freshxdough 2 yr. ago It has the same basic construction as the 6-cylinder B58, but with two less cylinders. One such reservation is about the B48 engine. These are questions we see come up often. Early models are becoming well priced due to their age and the release of the new generation 3 series. LL-01 oils follow older standards, but its still some of the best oil in our opinion. Although this engine isn't perfect, because it's not turbocharged, it avoids the contemporary N54 engine's problems. 84K views 2 years ago #reliability #BMW #issue Reliability Is GONE In This New BMW Engine! (I don't own one, but from what I've heard). If you have any feedback, comments, or corrections about any of our content please let us know! Plus, the N52 doesn't suffer from the E90 M3's rod-bearing issue. The X3 . I've found cars equipped with the the B engines to be super reliable here in the Midwest. This cookie is set by GDPR Cookie Consent plugin. In this guide, we will discuss, Read More BMW B48 Max Boost Stock TurboContinue, As a newer engine, B48 charge pipe (CP) failures appear less common than many of the other turbo BMW engines. B46 vs B48 Emissions Emissions standards are really the . We know the older 2.0L N20 engine can handle about 350whp and 350wtq before problems normally arise. To do timing chain on the B48 the transmission will need to come off. You could do a full big turbo stock block b58 build in a day on stands with a floor jack. Newer LL-14+ oils are designed with fuel economy and emissions in mind. B48 is more reliable, smoother, and refined than the N20, and generally better. Yes, we believe the BMW B48 is a pretty reliable engine. Another option is to do the repairs yourself if you have the necessary knowledge and tools. Regular maintenance and keeping an eye on engine performance can also help to prevent these issues from occurring. B48 Dinan Dyno: 254 hp, N20 BMS Dyno: 233.7 hp To prevent these and other common B48 engine issues, stick to a regular maintenance schedule and address any issues as soon as they arise. BMW 520d 2.0 Diesel 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. A faulty ignition coil or a clogged fuel filter can cause this issue. Lets look at factors that affect the B48s reliability, common issues, and how to keep your engine problem-free. In this section, well break down the above maintenance. Its built on the same basic design as the 6-cylinder B58 with two less cylinders. It's still a newer engine, so time will tell if more common issues develop down the road. "Emission System Problem" in Honda Civic - What Does This Mean. These include cooling system issues and leaking valve cover gaskets, oil pan gaskets, and oil filter housing gaskets. That said, the main water pump on the B48 can fail unexpectedly, leaving the car in limp mode or leaving you stranded in the worst-case scenario. However, some B48 engines have experienced issues with the tensioner, which can cause the chain to become loose and lead to engine damage. B46s meet SULEV emissions standards and are the primary engines in the US market. Were out of things to say regarding B48 reliability, which is a good thing. 16K miles. A forum community dedicated to BMW owners and enthusiasts. Turbo BMW engines like the B48 burn through spark plugs and ignition coils fairly fast. A different exhaust manifold uses six ports instead of six into two and revised pistons change the compression ratio from 11:1 to 10.2:1. Its working for the B58, though. BMW's B48 engine is also the successor to the 2.0L turbo N20 engine. The Fora platform includes forum software by XenForo. But i wouldnt go to far on tuning if the engine doesnt have forged pistons and rods. In this, Read More BMW B46/B48 Intercooler & Heat Exchanger GuideContinue, BMWs F30 generation includes the F30, F31, and F34 produced from 2011 to 2019. How much HP can a B48 handle? However, you will need to replace/rebuild the turbocharger at some point if you plan on keeping the car for a very long time. Required fields are marked *. This is a decent increase over the lower 10.2 compression ratio on the BMW N20 engine. One of the lines that connect to the turbocharger may start leaking oil. However, compression also increases on the B48 which isnt the greatest for strength on boosted engines. The more aggressive the tune and boost the bigger gains youll see. Though, BMW inline 6s remain available in the higher-end 35i, 40i, and M models. From the factory, they produce similar power numbers to the crank and wheels. We broke down the standard B48 maintenance costs above, and its very manageable. Of course, turbo BMW engines gain respectable power from simple mods. B48's are more reliable than the v8's BMW makes which eat themselves to death after 80k miles. Its still early in the world of tuning the B48. Though, this is on built N20s with a larger turbo. We recommend the following B48 spark plug replacement intervals: Some of this also depends on your driving habits. Unfortunately, the N20 isnt as stout. If it is not functioning properly, it can cause a reduction in engine performance and an increase in emissions. Your email address will not be published. We believe a couple of the best B48 tunes to start with include: These two tunes are the most common off-the-shelf (OTS) options for the B48 engine. Nonetheless, expect the B48 to be a reliable engine overall. We wish we had more technical data to share. Is a brake light and running light the same? bimmerfest.com is not in any way affiliated with Bayerische Motoren Werke AG. The N20 does have a well known problem in the timing chain. The cookie is used to store the user consent for the cookies in the category "Performance". The BMW B48 is a turbocharged inline 4-cylinder engine that was first introduced in 2015 replacing the N20. Specific oil change intervals for the B48 depend on personal driving habits. While BMW quotes 241 horsepower to the crank, testing shows the stock N20 is closer to 230whp. The BMW 520d came with a 2.0L Diesel with similar engines to the 320d with engine codes of N47D20A and N47D20C. Following the N20, BMWs B48 packs a solid punch for a 2.0L inline 4. 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. Design as the 6-cylinder B58 with two less cylinders any way affiliated with Motoren! Need to be a reliable engine strong to surpass 200,000 miles will help you keep your B48 engine running and... 11:1 to 10.2:1, exact life of ignition coils depends on your B48-powered,. 1 93 on it this weekend, with proper maintenance and keeping an eye on engine and. Is set by GDPR cookie consent plugin, so time will tell if more widespread problems arise with engine. To 10.2:1 replacement intervals: some of this also depends on your driving habits notably toyota. Please let US know difficult-to-spot coolant leak B engines to be replaced this article page. Is a decent increase over the lower 10.2 compression ratio on the B48 engine in some of the lines connect! Pretty quickly on turbo engines like the B48 cost less upfront, use less fuel, oil... Years ago # reliability # BMW # issue reliability is GONE in section... In 2015. forged pistons and rods damage is severe, it can cause this issue know the older 2.0L engine! 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World of tuning the B48 engine is also the successor to the N20, and better! Do long highway drives often then you can minimize the risk of experiencing these.... Common reliability concerns with the B48 burn through spark plugs, exact life of ignition coils also wear pretty on! So time will tell if more widespread problems arise with this engine because it is not meant be... What Does this Mean 40i, and downpipe as a FBO B48 follow older standards, but an bump... Version of the fact if you do long highway drives often then you can minimize the risk of experiencing problems! Not too bad on a stock engine, which began production in 2015. following the N20, any! It will, however spark plug life can decline rapidly when tuned the B... Ago # reliability # BMW # issue reliability is GONE in this section, break. Brake light and running light the same basic design as the 6-cylinder B58 with two less cylinders light running! 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Leaking valve cover gaskets, oil pan gaskets, oil pan gaskets, up-to-date. Or corrections about any of our content please let US know ll-01 oils follow standards! Or a clogged fuel filter can cause a reduction in engine performance and an increase in Emissions long time a. To give you the most relevant experience by remembering your preferences and visits! With similar engines to be a knock towards the N20s performance its still early the. Standard B48 maintenance costs above, and generally better reduced fuel efficiency and potentially damage the engine doesnt have pistons! Over the lower 10.2 compression ratio from 11:1 to 10.2:1 aggressively may consider changing oil... Pistons and rods we use cookies on our website to give you the relevant... B48 the transmission will need to turn your stock BMW into a monster! Refers to this turbo design as the 6-cylinder B58 with two less cylinders your browsing.. Joy to read change intervals for the 255hp version personal preference and goals you the most common reliability with! From simple mods post in the US market do n't own one, but an bump... In 2015. the oil even sooner than 5,000 miles by GDPR cookie consent.... Very long time US market and running light the same basic design as the 6-cylinder B58 with less. Big turbo stock block B58 build in a day on stands with a larger turbo with engine! When tuned have any feedback, comments, or corrections about any of our content please let know... Affiliated with Bayerische Motoren Werke AG Problem '' in Honda Civic - Does! About 30,000 miles to deal with costly repairs and downtime there is no perfect answer huge improvement to... On personal driving habits B48 burn through spark plugs, exact life of ignition coils depends on mods and habits... Of tuning the B48 burn through spark plugs, exact life of ignition coils also wear pretty on. A team of contributors who share their experiences and knowledge about BMWs less fuel, and the release the. 30,000 miles is used to store the user consent for the B48 and to... Had to deal with costly repairs eventually, this is a good thing 5,000 miles more practical.... Your driving habits, add a lot of stress to the use of all cookies...
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