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03-14-2013, 12:26 AM | #1 |
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F30 limp mode already!
Not sure how many of you guys have seen the 6 pages of people talking about limp mode already on their F30's. I really was giving bmw credit for absolutely fixing any overheating or limp mode problem on the F30 but this is just absolutely appalling and it really puts into question the future of the turbo m3 as a viable option for people who truly drive the car hard.
Just disapointing, I thought after the millions of dollars bmw lost through the e90 fiasco, they would assure that their turbo motors are flawless but within the first few months its an issue again!! |
03-14-2013, 02:09 AM | #3 |
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Considering the S55 is designed after the N55 I don't think they ever went back to any drawing board. That only happened one time and one time only and that was with the s85 and s65 engines. Truly only bespoke engine's ever in a bmw
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03-14-2013, 08:13 AM | #4 | |
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- Guy who sold his 335i and is waiting for his '13 M3. |
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03-14-2013, 08:52 AM | #5 |
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The drawing board = better cooling for the oil and turbos. Bigger intercooler, bigger piping, more efficient cooling bits etc etc and research 80s f1 technology
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03-15-2013, 03:08 PM | #6 |
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BMW should just scrap the turbos n go with supercharges not as efficient as turbos but way more reliable. Says the guy who also had a 335 (still hasn't changed my username) loved that n54 engine
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03-15-2013, 03:13 PM | #7 |
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BMW turbo engines are definitely not up to par with heat management and reliability when doing performance driving. Other manufacturers pull it off flawlessly, BMW needs to go back to the drawing board.
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03-19-2013, 12:26 PM | #8 |
Track? What Track? I was just riding along . . .
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I have always been curious - did they fix the cooling issues in that limited run of 1 series coupes that they M-badged? Or does the track put them in limp mode just like a 335is coupe?
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03-19-2013, 12:36 PM | #9 |
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so what's the actual issue here? Overheating is pretty general fairly common in turbo cars and there are many heat management/extraction methods. Is the turbo housing cracking? Is the coolant temperature above normal? Is the charged air way too hot?
I only ask b/c we assume the other manufacturers do turbo's better, but it's also likely those cars have lower tolerances. Examples would be Evos and STis...the engine management is nowhere close to the tolerance level in the BMW engine management software. There's a good chance that the BMW cars are just overly complex and have very restrictive tolerances for heat. Just a thought, I wouldn't know any specifics, but does make sense to think about this aspect. In the Evo/STi world, owners would just work their cars hard on the track, then in between sessions, pop the hood and attempt to cool down the intercooler and intake piping and other cooling hardware. Additionally, stylistically, these manufacturers allow those cars to be designed with signficant vents to extract the heat. Something tells me BMW refuses to poke more vents in their beautiful F30's front fascia/hood or put a huge front mount intercooler or vents in the hood. These are just the fronts, but the Evo and STis all have significant vents on the hood or behind the fender for cooling: Last edited by mdosu; 03-19-2013 at 12:50 PM.. |
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03-19-2013, 12:58 PM | #11 | |
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The cooling issue guaranteed comes out in BMW's testing, they just say it is ok and send it out as most buyers will not track their cars. That's why cars like the 335is have larger coolers than the regular 335i.
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03-19-2013, 01:02 PM | #12 | |
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http://www.f30post.com/forums/showthread.php?t=786475 |
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03-19-2013, 01:07 PM | #13 | |
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03-19-2013, 01:09 PM | #14 |
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turbo cars gets very complex when you have to build a high performance car. It's not as easy as just dropping a larger air-air intercooler b/c there's pressure drop with that system. You'll likely need to run shorter pipes and higher boost, which then creates even more heat...and the cycle continues.
BWM could have just a failure of the eqiupment instead of the actualy setup? I would think designing a turbo system is pretty easy, I mean, turbo engines has been around for about 90 years in one form or another. FWIW, the early Evo 8's also at one point had a water sprayer on the intercooler (debatable performance gain however). |
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03-19-2013, 01:27 PM | #15 | ||
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The limp mode where they can't rev past 2500 rpm is something else - doesn't look to be overheating related. Something with the fan control not being able to let the car heat up. It just sums up to BMW having inadequate cooling for the turbo motors.
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03-19-2013, 01:52 PM | #17 |
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03-19-2013, 02:32 PM | #18 |
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All the Benz now are turbocharged.
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03-19-2013, 08:45 PM | #19 | |
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So mechanism and delivery of power is drastically different and concepts nowhere near the same |
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03-19-2013, 08:57 PM | #20 | |
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mods: track ready stuff
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03-19-2013, 09:01 PM | #21 | |
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03-19-2013, 09:14 PM | #22 |
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Such early heat issues from the newest BMW lineup. One has to wonder what outside of warranty repairs will the owners deal with.
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