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User Name. Log in. Remember Me? The B series of motors are starting to take over. As you know from BimmerBoost reports a couple years back the B48 is part of a new modular inline engine family including the B38 and B The inline-6 big brother B58 is showing very well in stock and modified form. Originally Posted by BMS. Took the new development out for a few dyno runs both stock and with the JB4 installed for baseline purposes.

The dyno was updated with Winpep 8 and recalibrated as part of that process so I'm hesitant to compare to previous charts. As is it appears the new motor is about the same as the N20 in the output department. But, I suspect it's a bit better. We'll get another N20 on the dyno soon for comparison. This article was originally published in forum thread: B48 engine underrated - Baseline and JB4 tuned dynos from a BMW F22 i and comparison to the replaced N20 engine started by Sticky View original post.

Gmanuel11 -PM. SAE tends to read slightly lower. Sticky -PM. Originally Posted by Gmanuel The B series don't have curves that look like diesels when tuned, and still on stock turbo. Aaron -AM. Originally Posted by Sticky. BMW finally has a good looking turbo I4 and I6 torque curve. Not just one that falls off a cliff.BMW has been producing engines for automobiles, motorcycles and aircraft sincewhen production began on a straight-six aircraft engine. BMW is also well known for its history of straight-six inline-six engines instead of the V6 layout, which has replaced the straight-six layout for most other manufacturers.

P code engines are typically low production race engines such as the six cylinder P54B20 and P54B32, and 8 cylinder P60B32 found in the race variants of the E46 M3 which typically housed the S54B32 six cylinder for the general public. Prototype V16 engines have been made, however they have not reached production. These prototypes were the Goldfish 6. From Wikipedia, the free encyclopedia. Wikipedia list article. Main article: History of BMW motorcycles.

Retrieved BMW Brilliance Here. Hidden categories: Articles with short description. Namespaces Article Talk. Views Read Edit View history. In other projects Wikimedia Commons. By using this site, you agree to the Terms of Use and Privacy Policy.

OHV V8. Production of previous model continues in parallel.Remember Me? Second Lieutenant. What are the differences between the B46 in the 2 series and the B48 in the 3 series? I'm assuming the B46 is just a variant of the B48, but does anyone know if it also has that critical Achilles heel? Appreciate 0. Yes, it does. It has some differences to meet stricter emissions standards in states like California.

Both should not be an issue if you are leasing.

If you are buying, it depends on whether you have a warranty and your appetite for risk. Originally Posted by englishguy In Australia we also get the i's as EU spec with the B48 engines. Private First Class. Originally Posted by kaputt. My issue is whatever car I buy next I plan on keeping. I realize that VANOS has been an issue on earlier models E46 comes to mindbut none of them required an engine out service to fix it, meaning it remained relatively affordable to fix.

It seems as though modern BMW is engineering their vehicles like modern phones. A disposable appliance that will just be thrown away when it's time has come.

The most frustrating thing for me is that from a product standpoint forgetting current or future reliability BMW is the only one who is offering a practical RWD offering with a manual transmission. As the poster above said, I'm not expecting Honda Civic like affordability or reliability, but having a massive Achilles heel designed into the motor from the start just seems like poor foresight from the engineers. Originally Posted by rightrudder. I think frequent oil changes with proper-grade synthetic are key I've got an Mi on order, and I plan on keeping it well pastmiles.

That said, maintaining your engine well is absolutely critical, and you should only use high quality oil, change oil regularly, and stay on top of all required services like this guy did - your odds go way up. All times are GMT The time now is PM. Mark Forums Read. Thread Tools. Difference between B46 and B48?Larger Image. In Stock.

ALL NEW BMW HIGH PERFORMANCE M ENGINE - TWIN-POWER TURBO 6-CYLINDER

Add to Wish List. Coupled with Bluetooth capabilities right out of the box that allows for user-controlled adjustability and a live boost monitor to keep track of the action its a value proposition that is unequaled in the marketplace.

List of BMW engines

Not only does this connection method offer a simplified install but also effectively utilizes the factory DME, in tandem with itself, in order to re-map boost, fueling, and timing for optimal performance. From the free app, one has the freedom to reduce stock boost for valet duties or crank up the boost all the way up to the "race" setting for maximum enjoyment Regardless of what setting is chosen, there is a power level for everyone.

Also within the app the end-user has access to a live boost monitor which streams boost data in real-time to the phone very similar in appearance to the sport gauges on the iDrive.

bmw b46 engine

Not only will you be able to feel the difference but now you can see it as well! Tech Resources Applications Tech Resources. This can be adjusted via the Bluetooth app. Some parts are not legal for use in California or other states with similar regulations.Some info regarding a possible future recall for certain BMW models has recently surfaced online. The main issue that was discovered is that, due to a faulty bearing for the balance shaft, the engine could suffer from a lack of construction robustness for the respective part and thus could possibly lead to physical attrition of the component as well as further engine damage.

Consequently, the bearing wear might also put the vehicle safety and integrity at risk, as the powerplant could detach while driving. The B46 unit is a 4-cylinder gasoline engine which usually powers the 30i versions. The latest iteration of its kind is the B46D, which was further improved compared to B46C. On the photographed document, we can also see a partial list of models that could be on the verge of being recalled in the next period. The newly released BMW X6 is getting a recall.

According to the recall notice released by the National Highway …. BMW is recalling nearlyolder vehicles in the United States to replace Takata front air bag inflators. The inflators are among 10 million sold ….

According to the notice, the alleged headlight …. BMW recalls recalls.

bmw b46 engine

BMW recallingvehicles to replace Takata front air bag inflators BMW is recalling nearlyolder vehicles in the United States to replace Takata front air bag inflators.Remember Me? If you missed it, see here for the previous announcement of the i and i. Appreciate 2. Private First Class. Thanks for sharing! Appreciate 0. Brigadier General. What's the output of the engine in the US i?

Wait, I thought the 3 cyl was the B38, 4 cyl B48 and the B58 being 6 cylinder. I must have missed something somewhere.

Enlisted Member. Originally Posted by goj. Engine layout in the engine bay looks like it will be an absolute dream to work on if any problem arises compared to inline-6 applications. Looks like everything will be accessible once the air box and snorkel is removed. Isn't this a transversely mounted engine made for minis and the X1?

Therefor not for the i.

bmw b46 engine

Originally Posted by Thp4. Attached Images. Appreciate 1.

BMW Engine Oil

Lieutenant Colonel. Had the N20 in my F30 and now have the B46 in my X1. Difficult to compare as the applications are very different but I find it a bit quieter at cold idle and more efficient. Like it. Originally Posted by ando. Is that the same B46 as the mini f5x? I believe the B46 is the transverse motor and the B48 is the longitude motor.

You guys realize they can just turn the engine and mount it either way right? The B48 is already used the current F5x Minis in transverse mount. Originally Posted by Maxpnc. Second Lieutenant. Wait what!Remember Me? Second Lieutenant. What are the differences between the B46 in the 2 series and the B48 in the 3 series? I'm assuming the B46 is just a variant of the B48, but does anyone know if it also has that critical Achilles heel? Appreciate 0. Yes, it does. It has some differences to meet stricter emissions standards in states like California.

Both should not be an issue if you are leasing. If you are buying, it depends on whether you have a warranty and your appetite for risk. Originally Posted by englishguy In Australia we also get the i's as EU spec with the B48 engines. Private First Class. Originally Posted by kaputt. My issue is whatever car I buy next I plan on keeping. I realize that VANOS has been an issue on earlier models E46 comes to mindbut none of them required an engine out service to fix it, meaning it remained relatively affordable to fix.

It seems as though modern BMW is engineering their vehicles like modern phones. A disposable appliance that will just be thrown away when it's time has come. The most frustrating thing for me is that from a product standpoint forgetting current or future reliability BMW is the only one who is offering a practical RWD offering with a manual transmission.

As the poster above said, I'm not expecting Honda Civic like affordability or reliability, but having a massive Achilles heel designed into the motor from the start just seems like poor foresight from the engineers. Originally Posted by rightrudder.

I think frequent oil changes with proper-grade synthetic are key I've got an Mi on order, and I plan on keeping it well pastmiles. That said, maintaining your engine well is absolutely critical, and you should only use high quality oil, change oil regularly, and stay on top of all required services like this guy did - your odds go way up. All times are GMT The time now is AM.

Possible recall for several BMW models powered by B46/B48 engines

Mark Forums Read. Thread Tools. Difference between B46 and B48? Appreciate 0 Tweet. Find More Posts by kaputt. Find More Posts by englishguy Quote: Originally Posted by englishguy84 Both should not be an issue if you are leasing.

BMW Engine Oil

Find More Posts by crabu2. Find More Posts by Gabriel Quote: Originally Posted by englishguy84 Yes, it does. Find More Posts by rightrudder.