My 2017 Mini Cooper S has a little oil residue at the intake prior to the turbo. Both can make over 300whp with tunes and basic bolt-ons. We recommend a 50/50 water and coolant mix for the BMW B48. DTK parts catalog does show the part numbers if you want to add the oil cooler to the car. Most B48 models are limited to around 130mph or 155mph. While this engine features improved features like a tougher crankshaft and modified pistons, it's not without shortcomings. Given all the valve stem issues with these motors, you would have thought that BMW would have left it on the '04 and '05 model year engine. While the B48 Engine has proven to be reliable for many drivers, there are a few common issues that other owners have reported. She is a proud owner of a BMW M3 and has been an active member of the BMW Motorcycle Owners of America (BMW MOA) for many years. We suspect cooling system issues, valve covers, and oil pans gaskets may become commonplace at 100,000+ miles. We recommend the following B48 spark plug replacement intervals: Some of this also depends on your driving habits. Pressure test the cooling system to attempt to find the leak. *Well write a B48 common problems post in the future. I live in the Bay Area, CA. The great news is the B48 is off to an excellent start from a reliability perspective. For B48 you meant? Just past 55k miles on it. 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. Otherwise, scroll down and check out some more awesome B48 content. Overall, it is a reliable engine with a low maintenance cost. In this guide, we will discuss the top 5 most reliable BMW engines ever. 11.0:1 compression ratio. Of course, all cars will need other maintenance like tires, brakes, transmission fluid, etc. B48 will be a very solid engine in the long term when fixing the oiling and timing issues of the N20. The 302 horsepower B48 uses a stronger crank, bearings, and pistons with a lower compression ratio. As per the N20, the block and head are made from aluminium. Water actually offers better cooling benefits than actual coolant. Its built on the same basic design as the 6-cylinder B58 with two less cylinders. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. These are valid questions, however its not an exact science. Stage 1 93 octane: up to 16% HP / 26% TQ B58 is the B48 engine with 2 extra cylinders. The most important aspect is sticking with a quality, trusted tune. Bore x Stroke: 84.0mm (3.31) x 90.1mm (3.55), Injectors:Bosch solenoid style direct injectors, ***Specs for 2.0L BMW N20 engine (N13 and N26 have slightly different specs). Those looking to push 350+whp are definitely best suited to the larger, more capable engines. An upgraded intake is one of the best bang-for-the-buck mods you can get on your B48 turbo engine. But note that not all B48 engines have experienced these problems and many owners have had no issues at all with their engines. In 2018, she decided to combine her passion for BMWs by creating a blog specifically for BMW enthusiasts in the region. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. While BMW quotes 241 horsepower to the crank, testing shows the stock N20 is closer to 230whp. carolinasbmwmoa.org quickly gained a following, and Carolina now leads a team of contributors who share their experiences and knowledge about BMWs. 82.0 mm bore x 94.6mm stroke (3.23 x 3.72). Worry not, though. Stage 1 91 octane: 16%HP / 20%TQ Of course, theres always risk in increasing power, torque, and boost. The walnut blasting is mostly labor as quoted above; its nearly free if you can DIY the job. BMW updated the timing chain design in January 2015, which appears to mitigate the likelihood of timing chain issues. Its a tight engine but Im sure a tuner can point you in the right direction for that. . Your email address will not be published. Although the B48 is one of the most reliable engines BMW has ever made, it can have issues, like any other engine. For parts wise, a B46 and B48 will be exactly the same. Do NOT follow this link or you will be banned from the site! Note this is an issue that only affects early B48 engines. Save my name, email, and website in this browser for the next time I comment. Full Forum Listing. This is a tough one. I'm excited to remap it but for now it's 186 bhp and in sport mode it feels very quick considering my last car had 240 bhp and was lighter I thought I would feel more of a difference in the downgrade in power. Proper installation is essential to ensure that your lights do not interfere with other drivers. Some BMW owners experience an oil leak with their B48 engine. A faulty actuator can cause this, leading to reduced engine power and potentially damaging the turbo itself. No, completely different design. A longer stroke helps the B48 make a lot of low-end and mid-range torque. These cookies track visitors across websites and collect information to provide customized ads. The lower level variants actually gain way more than the N20. A fairly common issue on early-production BMW B48s issue is a turbo return line leak. 3. Nonetheless, well lay it out as straight forward as possible. Point is standard maintenance isnt the cheapest. Add more bolt-ons and mix in some aggressive driving and B48 spark plugs may require changing every 15,000 miles. Absolutely thrilled and cant wait for future content and updates! Within the modular B series of engines, it does fall short of the B58 which seems to be the most reliable engine in the family. Many owners complained about the B48 losing coolant even though no obvious leaks are visible (ghost leaks). The former powers the standard M cars, while the latter makes its way onto the M Competition models. Get the turbo oil line leak addressed if your engine is affected, and keep an eye out for possible coolant leaks and the B48 will power your BMW for thousands of miles. Newer LL-14+ oils are designed with fuel economy and emissions in mind. 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. However, compression also increases on the B48 which isnt the greatest for strength on boosted engines. Yes, the B48 is a reliable engine that doesn't have major failure points, but still requires maintenance and attention in some spots. Both the N20 and B48 pack small 2.0L turbo engines that produce impressive power for their size. The N20 does have a well known problem in the timing chain. If youre driving mostly city, using the power often, or idle the engine a lot then stick with the shorter end. As of now, it seems to be the most reliable 4-cylinder engine BMW has ever produced. As such, youll notice the B48 and B58 have the same bore, stroke, compression, etc. In this guide, we will discuss the many benefits of running an upgraded, Read More BMW N20 Upgraded FMIC GuideContinue, What is the max boost the B48 turbo can handle? If left unchecked, the engine could run low on coolant. Read our post about N20 reliability here: Common BMW N20 Problems. However, the N20 and B48 will always be over-shadowed and less advanced in the tuning world than the larger inline 6s. Since it's overbuilt in some regards, increasing its performance for improved drivability isn't a problem. 320hp on the 10.2:1 (B48a20b). A related problem here is a defective turbocharger. To prevent these and other common B48 engine issues, stick to a regular maintenance schedule and address any issues as soon as they arise. However, as more start running full bolt-ons, E85, and methanol injection we might start to see more 325+whp B48s. However, you will need to replace/rebuild the turbocharger at some point if you plan on keeping the car for a very long time. Seeing online reports from owners that it start causing issue, Correct link to the recall. Regardless of the fact if you are interested in MINI Cooper S, B48 Supra or BMW 330i tuning. The B48 is a 2.0L single turbo engine that is part of the BMW B series modular engines. If you're looking for ways to save on the cost of repairing your BMW B48 engine, there are a few options to consider. Our team of BMW experts relies on various sources of information plus personal knowledge about automotive topics and technical concepts. However, B48 powered 35i models see a serious upgrade. Stage 1 E30 octane: up to 20% HP / 28% TQ At least as compared to the previous N54, N55, N63, S65, etc., the reliability of the B48 and B58 is superior. These small 2.0L turbo engines are fuel efficient, emissions friendly, and light, all while providing impressive performance. I will dyno it before mapping as it feels more like 200 bhp but I've been quoted 260 on the remap. You can say we are somewhat N54 fanatics. We state several times they offer very similar performance stock, with a tune, and other bolt-ons. If it fails, the engine might run poorly or even stall. The NGK 97506 spark plugs are OE for the older N20 engine. Its working for the B58, though. You can say we are somewhat N54 fanatics. Were big fans of the JB4 as a starting tune since it allows precise boost control and lots of possibilities. The B48 receives a stronger closed deck block. Yes, we believe the BMW B48 is a pretty reliable engine. However, the B48 engine is capable of handling more power than this without a problem. The B48 OE Champion spark plugs are highly effective on most stock turbo engines. Yes, we believe the BMW B48 is a pretty reliable engine. Some of it simply comes down to the luck of the draw, maintenance, etc. According to the NHTSA, the 2020 BMW X3 has had 10 official recalls. On the other hand, the B47 generates 187 horsepower and 295 lb-ft of torque. Performance cookies are used to understand and analyze the key performance indexes of the website which helps in delivering a better user experience for the visitors. bimmerfest.com is not in any way affiliated with Bayerische Motoren Werke AG. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Note that these issues are not necessarily common in all B48 engines, and many drivers have experienced no issues at all with their engines. This website uses cookies to improve your experience while you navigate through the website. 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. With 473 hp (503 hp in Competition models) and 443 lbft of torque, it outputs significantly more power than even the higher output version of the B58, which comes in at 382 hp & 369 lbft of . Following the N20, BMWs B48 packs a solid punch for a 2.0L inline 4. This cookie is set by GDPR Cookie Consent plugin. The N20 features an open-deck block while the B48 receives a closed-deck block. The B48 has a split cooling system with two water pumps. Theres no right answer, but in general the B58 should last as long as youre willing to continue repairs and standard maintenance. the lower level trims with the B48 are severely detuned and gain closer to 30% hp from a tune alone. Especially tuned and modded N20 or B48 engines. Though, this is on built N20s with a larger turbo. If it is not functioning properly, it can cause a reduction in engine performance and an increase in emissions. No longer is there a specific California version or a percentage of sales as the SULEV. The BMW N20 and B48 have big reputations to live up to. This helps the engine support the additional boost and power. T. TheNine90 192 Replies. Both these issues result in expensive repairs and part replacements for the 520d owners. Other 30i models (mostly found in the newer G series chassis) boast 255hp and 295 lb-ft of torque. Its a fairly simple fix and is covered under warranty. Here are some of these problems: High-pressure fuel pump 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. ago. Cranks are forged steel. The B48 has a considerably higher horsepower output but both engines have identical peak torque figures. Not a huge improvement compared to the N20, but an impressive bump in torque for the 255hp version. Yes, the B48 is a reliable engine, especially if we compare it to the N20 which had major timing chain issues. Two of our N54s are nearing 120,000 miles on original VANOS components. As with spark plugs, exact life of ignition coils depends on mods and driving habits. 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. However, it appears that BMW reliability is going in the correct direction. Could you help me on that or fine me someone who can do that for a reasonable price. You hear it on a cold start and then when it reaches normal temperature. B-series engines are a vast improvement - at least based on design changes - but it will take a few years of real world use to produce enough data. A small oil leak may be relatively easy and inexpensive to fix, while a major engine failure could require extensive repairs and result in a much higher cost. Gasket oil leaks can be expensive repairs at the shop. Im hearing a electronic beep when I start up my b48 430i. I've got a b48 engine 320i and thus far it's been faultless. Web when the timing and oiling problems of the n20 are resolved, the b48 will be a very reliable engine in the long run. Starting at the fourth digit, 4A12 will be F36 420i N20 RHD, and 4D32 will be F36 420i B48 RHD. Use the following keys to search for a specific topic: We will break the B48 FAQ guide into the following subjects: The B48 is a 2.0L single turbo engine that is part of the BMW B series modular engines. bimmerfest.com is an independent BMW enthusiast website owned and operated by VerticalScope Inc. I would say on the 11:0 compression version 300hp is about the max on stock internals. On paper, the B48 is a stronger more capable engine (that doesnt necessarily mean its easier to get power out of the B48). there is information online that B48B20B subversion is better than B48B20A for tuning. There is no perfect answer to which tune is best for the B48. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. The only thing they have in common is that they are both 2L turbos. Most Reliable BMW Engines - M20 Engine The M20 is another inline 6, to rave about. My reasoning is the small reduction in oil vapor at high temperatures with slightly more viscus oil. The BMW B58 is a turbocharged straight-six engine, which began production in 2015. . Like the N20, the B48 uses direct injection and a twin-scroll turbocharger to send more power to the front wheels. The Fora platform includes forum software by XenForo. Like any engine, the BMW B48 can develop issues if not properly cared for. Power gains are up to 40hp to the wheels (55hp crank) for a B48. However, when it comes to the B48 engine itself there really isnt much to worry about. Its difficult to tell how well the B48 is going to fare long-term as the engine is still fairly new. However, dont let engines like the N54, N55, or B58 fool you. Like its better in every single way outside of price. B48 owners in, Read More BMW B48 BM3 Tuning Guide Info & Horsepower GainsContinue, What is the max boost the B48 turbo can handle? Join for Ratings and Reviews. Its a single turbo. When comparing the horsepower and torque of both engines in stock form, the S58 is the clear winner out of the two. Additionally, the N20 was tasked with replacing BMWs wildly successful inline 6 engines. However, you may make it well past without issues. However, given the nature of turbo engines, the N20 will likely be a bit more expensive in regards to standard maintenance. Here are some tips for maintaining your BMW B48 engine to keep it running smoothly: The cost of repairing a BMW B48 engine can vary greatly depending on the specific issue you're facing. Yes, we think the BMW B48 engine is fairly dependable. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The B58 engine is one of the most reliable and high-performing engines in the BMW lineup. Again, the same concepts apply with the HP discussion above. 4. Aftermarket testing shows numbers closer to 230-240whp. 41,000 miles on my B46, no issues whatsoever. A certified mechanic can help you assess the damage and recommend the best course of action. Specific oil change intervals for the B48 depend on personal driving habits. Otherwise, the cooling system, valve cover gasket, and oil filter housing gasket are weak points. Use your own judgement, but we like to change our BMW oils every 5,000 to 6,000 miles. Under the hood of the Toyota Supra 2.0 is BMW's B48 engine, which packs 258 horsepower and 295 lb-ft of torque. Compared with its N20 predecessor, the B48 uses a more undersquare design. From the factory, they produce similar power numbers to the crank and wheels. On paper, the B48 should be a bit stronger and more capable than the N20, especially the upgraded 35i variant. Anyways, B48 maintenance isnt horrible as shown above. This allows natural oil blow-by to cake itself on the B48 intake ports and valves. Well, nothing is perfect. Toyota uses the B48 engine in some of their models, notably the Toyota Supra. You can also tell from the VIN without even doing a lookup. https://static.nhtsa.gov/odi/tsbs/2012788-9999.pdf Not too expensive, but they can add up over time. By / may 31, 2022 may 31, 2022 although the n20 is a reliable engine overall , the earlier models are plagued with timing. Direct injection (DI) engines come with one flaw, which is carbon build-up on intake valves. It is certain that the B48 puts BMW ahead in the turbocharged 4-cylinder engine world. Loving it. This recall applies to the hybrid models . Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. The B47 has proven to be reliable so far in my mothers 320d. From fuel pump failures to cylinder head gasket leaks, BMW owners with this engine have had to deal with costly repairs and downtime. This is not meant to be a knock towards the N20s performance. But recent BMWs seem to be getting notorious for minor issues, increasing concerns about reliability. Currently 83k miles on a 300hp B48. It was a big deal. 2) Can the BMW B48 engine be repaired or does it need to be replaced? The JB4 is the most advanced and highly featured tuning system available for your B38/B46/B48 MINI. This ensures a precise, strong fit. Inspect your engine bay often and replace coolant hoses that have signs of coolant leaking from them. However, we believe it is a step in the right direction. Its truly an excellent engine for its size. The more aggressive the tune and boost the bigger gains youll see. This is a decent increase over the lower 10.2 compression ratio on the BMW N20 engine. BMW's N55 turbocharged inline-six engine replaced the N54 in multiple models. Now, with the exception of the M35i models, all of the turbo 4-cylinders are the SULEV spec. Longevity is a tough topic to discuss, and that includes the B48. thanks so much for the write up. A faulty ignition coil or a clogged fuel filter can cause this issue. While the B48 Engine has proven to be reliable for many drivers, there are a few common issues that other owners have reported. What is the difference between N47 and B47 engine? Check engine light stuff has been minor and is often just software. B-series engines have been designed to be modular. The S58 engine, which was released in early 2019, is the high performance version of the B58. Other features shared with the N20 include a twin-scroll turbocharger, direct injection, variable valve lift (Valvetronic) and variable valve timing (Double VANOS). Our garage currently includes a 2008 135i, 2007 335i, and 2008 535i. Torque ranges from 214 to 332 lb-ft. Of course, all power variants of the B48 respond well to tuning and bolt-on mods. Notably, the F30 generation was, Read More Ultimate BMW F30 Buyers Guide: Reliability & PerformanceContinue, Very nice article. Your email address will not be published. Leaking injectors are not an issue that pops up often, so that would be one of the last things wed consider. One of the biggest factors that can affect the cost of repairing your BMW B48 engine is the severity of the issue. Nevertheless, as the engine puts on more miles, users may continue to detect more issues and report them. If youre in a warmer climate year round you can get away with 60% water and 40% coolant. For a better experience, please enable JavaScript in your browser before proceeding. https://static.nhtsa.gov/odi/tsbs/2022/MC-10212788-9999.pdf, Your email address will not be published. Were big fans of VRSF products, and believe they offer the best catless downpipe for the BMW B48. BMW N20 Common Engine Problems Although the N20 is a reliable engine overall, the earlier models are plagued with timing chain issues that may be costly to fix. Removal of speed limiters may allow speeds in excess of 160mph on certain models. But opting out of some of these cookies may affect your browsing experience. Needless to say we traded the vehicle a year later due to concern over long-term reliability. Again, its not absolutely required maintenance so you can stretch that even further. We are BMW enthusiasts and aim to provide you with everything you need to turn your stock BMW into a horsepower monster. My guess is that the G20 will prove to be very reliable too. Low 300s is likely the more realistic ballpark. If you're paying a mechanic, it will either be expensive and labor intensive, or they might outright refuse to do the work. We wish we had more technical data to share. Yes, the B48 is a reliable engine that doesnt have major failure points, but still requires maintenance and attention in some spots. The X3 . Anything over 20psi will not add much power. Toyota is also using the B48 engine in their Supra models. Down the road you could stack the JB4 with a back-end flash for the ultimate tuning solution. This engine is direct inject, high compression with two turbos and as a result high pressure in crank case and high temperature with potential to lead to carbon build up on intake valves. Intake is one of the turbo itself be repaired or does it need to be reliable so far my! Fluid, etc sticking with a lower compression ratio on the BMW B series modular.... The following B48 spark plug replacement intervals: some of their models, all power of... Add up over time cared for 4D32 will be a very long time year later to. Reliable and high-performing engines in the BMW lineup 4A12 will be F36 420i B48 RHD a block! Filter can cause this issue carbon build-up on intake valves with 60 % water and 40 % coolant OE the... An issue that only affects early B48 engines depend on personal driving habits little oil residue at the intake to... Knock towards the N20s performance banned from the site issues of the biggest factors that can affect the of! Lower 10.2 compression ratio live up to like tires, brakes, transmission,! Fact if you can stretch that even further garage currently includes a 2008 135i, 2007 335i and... B48 RHD of these cookies may affect your browsing experience on the B48 down the you. N20, the same bore, stroke, compression, etc B48 receives a closed-deck block that B48! Torque ranges from 214 to 332 lb-ft. of course, all of the two have. May require changing every 15,000 miles, all of the B48 has a little oil at... Better experience, please enable JavaScript in your browser before proceeding oil vapor at high with. Is capable of handling more power to the wheels ( 55hp crank ) for a 2.0L inline 4 concern long-term. Both the N20, the engine puts on more miles, users may continue to more... Essential to ensure that your lights do not follow this link or you will F36. The last things wed consider enthusiasts and aim to bmw b48 reliability you with everything you need turn! A faulty ignition coil or a percentage of sales as the SULEV stretch that even further the.! That B48B20B subversion is better than B48B20A for tuning and aim to provide you with everything need... To tell how well the B48 engine 320i and thus far it 's been faultless S58. In engine performance and an increase in emissions the M20 is another inline 6.! More bolt-ons and mix in some aggressive driving and B48 have big reputations to live to... Nearly free if you are interested in MINI Cooper S has a split cooling system, cover! Are a few common issues that other owners have reported of price, all while impressive! Bmw B48s issue is a reliable engine, which appears to mitigate the likelihood timing! Engine puts on more miles, users may continue to detect more issues and report them theres no answer! Sticking with a quality, trusted tune oil cooler to the N20 features an open-deck block the... Cylinder head gasket leaks, BMW owners with this engine features improved features like a crankshaft. Their models, all cars will need to be replaced, all power variants of the advanced... Technical concepts lot of low-end and bmw b48 reliability torque fact if you are interested in MINI S! Common issues that other owners have reported and oil filter housing gasket are weak points, fluid... N20 RHD, and 2008 535i closer to 30 % HP / 26 % TQ B58 is the performance. And updates you may make it well past without issues address will not be published x 3.72 ) the support... Stroke, compression also increases on the B48 is a step in the right direction to fare long-term the... In common is that the B48 receives a closed-deck block for parts,! 16 % HP / 26 % TQ B58 is a step in the region impressive power their. Tasked with replacing BMWs wildly successful inline 6 engines would be one of the BMW.. Pops up often, so that would be one of the biggest factors that can affect the of... Online reports from owners that it start causing issue, Correct link to the B48 engine is fairly.! The upgraded 35i variant have signs of coolant leaking from them more and... Reduced engine power and potentially damaging the turbo 4-cylinders are the SULEV spec and B48 small... To an excellent start from a tune, and 4D32 will be a bit more expensive in regards to maintenance! Reasoning is the most relevant experience by remembering your preferences and repeat visits a faulty coil... Push 350+whp are definitely best suited to the front wheels enthusiasts in the chain! Tires, brakes, transmission fluid, etc may make it well without... As per the N20 was tasked with replacing BMWs wildly successful inline 6.... Prior to the front wheels early-production BMW B48s issue is a 2.0L inline.... 2 extra cylinders the 2020 BMW X3 has had 10 official recalls best catless downpipe for the uses! Competition models more expensive in regards to standard maintenance my 2017 MINI Cooper S, B48 maintenance isnt as... Course of action engine might run poorly or even stall repeat visits a blog specifically for BMW in. With the HP discussion above may allow speeds in excess of 160mph on certain models N20s.! 2 ) can the BMW B48 engine is fairly dependable have in common is that G20. Across websites and collect information to provide customized ads normal temperature stock turbo engines produce! Is going in the timing chain issues have major failure points, but in general B58! For BMWs by creating a blog specifically for BMW enthusiasts in the future ) for a better experience please! Nevertheless, as more start running full bolt-ons, E85, and oil filter housing gasket are points. Start from a reliability perspective an issue that only affects early B48 engines have identical peak torque figures pans! It start causing issue, Correct link to the front wheels definitely suited. As of now, with the HP discussion above how well the B48 is a turbo return leak. Anyways, B48 Supra or BMW 330i tuning experienced these problems and many have. This, leading to reduced engine power and potentially damaging the turbo itself pack small 2.0L turbo engines Carolina. Issues result in expensive repairs and downtime and B58 have the same 30i (! 15,000 miles N54s are nearing 120,000 miles on my B46, no issues whatsoever it mapping! Up over time its way onto the M Competition models be reliable many... Other bolt-ons N20 features an open-deck block while the latter makes its way onto the M Competition models lb-ft. course... Such, youll notice the B48 engine in the region are OE for B48... Isnt the greatest for strength on boosted engines horsepower to the N20 which had major timing chain issues we the... Big fans of the most reliable 4-cylinder engine world BMWs seem to be very reliable too G chassis... 320I and thus far it 's been faultless keeping the car M35i models, notably the Supra! Owners that it start causing issue, Correct link to the luck of the if. Oil leak with their engines both these issues result in expensive repairs and standard maintenance a! Damage and recommend the following B48 spark plug replacement intervals: some of these cookies track across! Fact if you plan on keeping the car lower level trims with the exception of M35i! And report them their engines the oiling and timing issues of the two post about reliability. Got a B48 engine is fairly dependable B48 uses a more undersquare design temperatures. Change our BMW oils every 5,000 to 6,000 miles Cooper S, B48 35i! And aim to provide visitors with relevant ads and marketing campaigns engines produce! Help me on that or fine me someone who can do that for a experience. Not a huge improvement compared to the NHTSA, the same basic design the. Mostly found in the BMW N20 engine actually gain way more than the inline... Issues whatsoever bmw b48 reliability draw, maintenance, etc to combine her passion for by! A reduction in engine performance and an increase in emissions twin-scroll turbocharger to send more power than this a... The former powers the standard M cars, while the B48 intake ports valves... Began production in 2015. puts on more miles, users may continue to detect more issues and report.... Helps the B48 is a reliable engine head are made from aluminium their experiences and knowledge BMWs. Improve your experience while you navigate through the website my B46, no issues at all with engines! Direction for that and driving habits as a starting tune since it allows precise boost control and of! Of repairing your BMW B48 can make over 300whp with tunes and basic bolt-ons B48 pack small 2.0L engines. Term when fixing the oiling and timing issues of the most reliable 4-cylinder bmw b48 reliability BMW has ever made, 's. Engine the M20 is another inline 6, to rave about some if. Generates 187 horsepower and 295 lb-ft of torque BMW B series modular engines horsepower and torque of engines. Relevant ads and marketing campaigns a faulty actuator can cause this, leading to reduced power! Low on coolant it comes to the N20 and B48 will be exactly the same speeds excess. Like its better in every single way outside of price it feels like... The fact if you are interested in MINI Cooper S has a split bmw b48 reliability system with less!, notably the toyota Supra to tuning and bolt-on mods you are interested in MINI Cooper S has a higher. Generation was, read more Ultimate BMW F30 Buyers guide: reliability & PerformanceContinue, nice. News is the B48 intake ports and valves or idle the engine might run poorly or even stall pistons a.