N46 engine reliability. Addressing these problems proactively can help .

N46 engine reliability Apr 7, 2024 · What engine to get?All times are GMT -5. My N42B20 has 7% better fuel economy over M54B25, but 600% more repairs. The n43 which can come in 143, 170 hp variants. The time now is 12:27 PM. Dec 29, 2024 · Reliability and repair of BMW N46B20 engine BMW N46B20The next generation of BMW inline four-cylinder engines following the N42B20 was named N46, and the new 2-liter version is the N46B20. Jan 12, 2025 · Explore common BMW N46 engine problems, their symptoms, and solutions to ensure your vehicle's reliability and performance. Given the fact that in 2005 the E46 was removed from production, this powerplant was not widely distributed. Dec 27, 2024 · Reliability, problems and repair of BMW N46B18 engine BMW N46The younger modification of the N46 series under the name N46B18, was developed in 2004 on the basis of N46B20 and was produced only for BMW E46 316. Nov 27, 2018 · The 4 cylinder engines on the E90 don't have a great rep, especially the 170hp one in the 320si and the later diesel 2. Enthusiasts have explored tuning options for the N46 engine, unlocking additional power and torque potential while maintaining its efficient characteristics. N46 has issues with timing chain, Valvetronic and maybe oil consumption due to valve stem seals. There really isnt anything redeeming about them to justify the reliability issues, spending money and time on solving problems on Apr 20, 2023 · Hey BMW fans, How reliable is the 1. Sep 11, 2025 · Explore the reliability and common problems of the BMW N46 engine, including oil specifications and owner experiences. 0-liter engine, part of the N46 series, is known for its efficiency and reliability. I don't know how the market is in Hungary and the average prices for these cars are, besides that the N46 like kind of all BMW engines are very reliable if maintenance schedules are followed. us My Yahoo! Dec 13, 2024 · The N45 engine was installed in two BMW models: the E87 “one” and the E46 and E90 “three” from 2004 to 2012. The engine first debuted in the 3 Series E46 and was later used in the 1 Series E87 and 3 Series E90. The N46B20 engine is no exception; it represents a classic in-line four-cylinder unit The BMW N46 is a naturally aspirated inline-four piston engine which replaced the BMW N42 and was produced from 2004 to 2015. Engines N43, N45, N46 have the same cylinder diameter – 84 mm, piston stroke is different. Whereas the 4 pots are less reliable than a 4AFE, and less entertaining. The n46 features a multi point injection and doesn't have the dreaded nox system. Apr 12, 2015 · BMW N46B18 engine reliability, problems and repair Younger modification of N46 series was produced on base of N46B20 in 2004 and was used only for BMW E46 316i models. 0 with the timing chain issues. The n46 which can come in 127, 134, 141, 148, 170 hp versions. Oct 16, 2023 · Still more reliable than any N4x. However, the direct-injected N43 was not sold in countries with high-sulfur fuel, so the N46 continued to be Dec 18, 2024 · The engine is the youngest representative of the N46 family. It is Mar 26, 2025 · The BMW N46 engine, while generally reliable, is not immune to a range of issues, particularly concerning its Valvetronic system. BMW N42 & N46 Engine Reliability 2020#BMWN42 #BMWN46 #BMWRELIABILITY Feb 17, 2023 · ContentsHistory of the engine, from N42 to N46Technical characteristics of the BMW N46B20 internal combustion engineReliability and maintainability of BMW N46B20 enginesNuancesSWAP, contract and tuningCars with BMW N46B20 engines The history of BMW engines begins long before the beginning of the 21st century. 0 petrol. Jun 7, 2023 · How reliable are the B46/B48 engines? 2019+ BMW 3 AND 4-SERIES FORUMS (G2x Generation) General G20 Sedan / G22 Coupe / G26 Gran Coupe Discussions How reliable are the B46/B48 engines? trueI have n46 and when it works it works fine. In a nutshell, the N45 is a relatively simple in-line atmospheric “four”. The only BMW model that received the N46B18 engine was the E45 316. Regular oil changes are vital on the N46, especially when tuned and will help extend the life and reliability of the engine. Addressing these problems proactively can help We would like to show you a description here but the site won’t allow us. In 2007, the N46's successor - the BMW N43 - was introduced. Produced from 2004 to 2012. [1] The N46 serves as the basis for the smaller BMW N45 engine (which does not have Valvetronic). Jul 15, 2025 · The N46 engine, employed in a range of BMW models, is known for specific mechanical maladies that necessitate prompt attention. Hey all, I have been researching quite alot and I have been trying to figure out which one of these two engines are more reliable. The B18 was originally based on the B20 model, produced since 2004. The N46 engines are generally reliable and solid as long as they are regularly serviced and maintained. Mar 25, 2025 · Discover common problems with the BMW N46 engine and effective solutions to maintain performance and reliability. Most Common BMW N46 Engine Problems: Causes and Consequences The BMW N46 is a four-cylinder gasoline engine introduced in 2003, succeeding the N42 model. Jul 25, 2023 · BMW Engines Spotlight On: BMW N43 Four-Cylinder Petrol 2007-2013 Discover the BMW N43 engine: A technological masterpiece or a risky proposition? Unraveling its secrets and what went wrong! Home We've just bought a 2004 bmw 318ci with the N46 engine, Its a 1 owner full BMW history car with 75k on the clock and its started throwing up a few issues, First of which was the front wishbone There are two engines used for the 2. Grasping these prevalent issues is imperative for preserving the engine's efficacy and durability. The successor N43 is likely the worst BMW engine ever. My friend owns 1er n43 and is having lots of issues with injectors, they are expensive and hard I love my 143hp n42, got 48. However, components such as the water pump, thermostat, and radiator can experience issues. 0 320 is ~150hp with garage mpg A well cared for engine is the priority when buying an e46 of any kind, keep that in mind when buying Nov 24, 2023 · Also interested if engine swap worked with newer e90 n46 engine. Sep 8, 2021 · N52s are arguably one of the most reliable engines BMW has ever made, not exactly toyota 4AFE reliable, but still reliable and shitloads more entertaining than a 90s economy toyota engine. It has an in-line structure, 4 aluminum cylinders with 4 valves on each. Dec 18, 2024 · Two-liter gasoline engine from BMW. Jan 12, 2025 · Explore common BMW N46B20 engine problems, their symptoms, and potential consequences for informed vehicle maintenance. Mar 26, 2025 · In summary, while the BMW N46 engine offers a compelling mix of performance and efficiency, potential buyers and current owners should be aware of its reliability issues and the importance of adhering to the manufacturer’s maintenance guidelines. The m52 2. Mar 12, 2012 · hi guys gunna buy a 3 series 08 plate 320i with n46 engine just need a bit of info on the engine is it good bad or ugly anything i should be looking for or expect. ), besides all the usual maintanance (I have only 130k kms). The 320i’s 2. Understanding these problems is essential for maintaining the engine’s performance and longevity. COOLING SYSTEM ISSUES The N42/N46 engine's cooling system plays a vital role in preventing overheating. The engine Aug 18, 2023 · How good is the B46/B48 really (Compared to the N20/N26)> 2012-2019 BMW 3 and 4-Series Forums > General F30 Sedan / F32 Coupe / F36 Gran Coupe Forum > How good is the B46/B48 really (Compared to the N20/N26) Apr 20, 2018 · « Previous Thread Next Thread » 318i v 320i with n46 engine Jul 25, 2018 · I thought the N46 would be better since its newer but some people say the N42 is more reliable The main reason why I'm comparing the two engines is because I've heard that the N46 is problematic on the 320i E90. I changed valvetronic motor and rebuilt engine (piston rings, valve stem seals, rod bearings, new gaskets etc. I am aware that both is nowhere near reliable compared to the inline 6 engines. Unlike the closely related N45, the N46 was equipped with the Valvetronic system. N43 has same problem with timing chains and fuel injectors, but the Valvetronic is much more reliable. It's a N46 fitted with direct injection. However you will have the common problems with BMW's this age, check if things like valve cover gaskets and cooling system parts are replaced. It features a direct injection system and the nox system. This engine should be avoided as it costs Nov 25, 2018 · The Most Reliable BMW Engines Ever Made What are the most reliable BMW engines ever made? Let me walk you through BMW engine reliability and even some of the most unreliable BMW engines as well. The engine is the heart of the BMW 3 Series E90 320i, delivering the power and performance that drivers expect from a BMW. The n43 is more sophisticated but a cost of reliability. I have both N42 and M54 engines in my E46s. Also, N42 is far less smooth and enjoyable compared to M54. 2-liter N46B20 version turned out to be the most powerful motor among all N46 engines. Its not fast or economic, but you get from a to b with having fun shifting (6mt). Just some extra random info if anyone was ever interested: Explore the world of BMW N46 engines with our comprehensive guide. Apr 12, 2015 · BMW N46B20 engine reliability, problems and repair N46 is next generation of 4-cylinder inline engines appeared after N42B20. 5mpg (uk mpg) on a 150mile trip then 44. Reliability is a hallmark of the N46 engine, making it a dependable choice for those who value both performance and longevity. 9 M43 4 cylinder found in the E36, E46 and Z3? I'm looking to buy a manual E46 with this engine and my understanding is that this engine is more reliable than the later N42 and N46 engines though I can't seem to find much information on the M43, so if anybody « Previous Thread Next Thread » N46 Timing chain issues / replacement? Dec 5, 2022 · twitter Facebook Digg Google StumbleUpon del. 5 on the way back carrying an extra 240kg. Already in 2006, the car was removed from production, and the engine failed to become global. The manufacturer intended to launch mass production, alas, the goals failed to materialize. Stay informed and make educated decisions about BMW N46 engines for an optimal driving experienc Jul 30, 2025 · Discover the most reliable BMW engines, their ratings, common issues, and real owner insights to make informed decisions. At some point, they revised a few bits and released as n46n. Apr 16, 2025 · Explore common BMW N46 engine problems, their causes, solutions, and owner feedback to keep your vehicle running smoothly. However, several common engine-related issues can arise, impacting the vehicle’s performance and driving experience. icio. Discover different versions, weigh the pros and cons, and gain insights into common faults. Everywhere I read seems to be somewhat different on the reliablility of these engines. . h6i5s 6acncf 72ztrwa maa vub0hd ufrvcw zmu lgz 7isid w10waz

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