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The powerglide dates back to the 1950's. What did BMW have then?
Don't all current BMW automatics have an overdrive 5th? (Didn't even the previous 4-speed automatics use an overdrive 4th?) Thinking the 325ia's is a 0.75, which is numerically lower than the 0.82 on my 540i6.
There are a ton of cars with small engines that have decently deep overdrives, including on both manual and automatic transmission versions. I can't think of a single small engine economy car sold in USA with an automatic transmission that doesn't have an overdrive top gear.
Ultimately, it is the interaction of the overall gear ratio (final drive x individual gear ratio) with the engine's output curve that determines whether the setup is efficient and effective.
I don't mind needing to downshift out of top gear to pass or accelerate. An automatic does that automatically. I just need to do it myself in my cars with manual transmissions. That is what lower gears are for at speed if I also want efficient high speed cruising in top gear.
Anyway, a big V8 with lots of torque can run at a lower engine speed and still pull fairly well than a 4 cylinder engine with less than half the torque. So the small engine will need to run a bit faster in high gear to pull the car along comfortably.
In particular:
the 540 comes with a 2.81:1 axle ratio and the overdrive is 0.8 for an overall ratio of 2.25:1
the 530 comes with 3.46:1 axle ratio (automatic) and overdrive is 0.75 for an overall ratio of 2.6:1 and the 330 is 3.38:1 with overdrive of .76 giving an overall ratio of 2.57:1
BMW is running the smaller sixes faster than the V8s.
Better comparisons are between the 325i and 330i--both automatics and manuals of each. Compare the individual gear ratios, final drives, and overall ratios.
Many vehicles can be had with different final drive ratios (esp. vehicles that tow heavy loads). Just take the 540ia. The Sport model gives you the more aggressive, "hotter" 3.15:1 final drive. This boosts acceleration performance in all gears versus the numerically lower final drive in the non-Sport 540ia. The overall ratio is higher in every gear. But it also means the engine turns higher RPMs in each gear, esp. at higher speeds. And say hello to the gas guzzler tax. That is the trade off. (Though some of this is created by the way the EPA tests.)
Yes, the 3 Series automatics with overdrive use more aggressive final drives. But they also end up with a lower overall ratio in top gear. They use the numerically higher ratio to improve acceleration performance since there will be efficiency losses and the overdrive to gain increased efficiency at higher speeds. A 6 speed manual will essentially do the same.
(One of my favorite set ups today is the Acura 3.2TL Type S. Believe its 5-speed automatic uses a 0.47:1 5th gear in conjunction with a 4.11:1 final drive. Great acceleration and great highway fuel economy. The overall ratio in 5th gear in this car is lower than that in any current 3 or 5 Series. Check out the overdrive ratio in the Corvette.)
BMW is adding a 6th gear to their 5 speed and the 6th gear is an overdrive. They have also changed the first gear a little, but the 2nd, 3rd, 4th and 5th gears are essentially the same. This 6th gear will allow the 330 to run a bit slower at cruise, but I do not see that it gives the car much improvement in performance otherwise.
And as we both know, the overall ratios in top gear for the automatics are different than the manuals. The use of the automatic's overdrive offsets the automatic's higher numerical final drive, to give a lower overall ratio in 5th gear.
I believe BMW has chosen its current final drive ratios and non-overdrive 5th (and, thus, the resulting overall ratio in 5th) to satisfy those drivers who don't want to have to downshift to pass or who need to accelerate in top gear on interstates/autobahns. BMW could gear the current manual transmissions similarly to the 5-speed automatics if they wanted to.
In top gear...
325i manual is 1.00 x 3.15 = 3.15
330i manual is 1.00 x 2.93 = 2.93
325i auto is 0.74 x 3.46 = 2.56
330i auto is 0.74 x 3.38 = 2.50
BMW has varied final drives (4 different ones) and 5th gear gearing (2 different ones).
EPA figures are:
325i auto = 19/27 mpg
330i auto = 19/27 mpg
325i manual = 20/29 mpg
330i manual = 21/30 mpg
33
Congratulations on your new 330! I still love my 325i a year after I bought it.
Regarding the daytime running lights, there are a number of options the dealer can set for the car and some specific to the key used. Things like how many times you push the key fob to unlock all the doors, automatic locking of the doors at 5 mph and daytime running lights. Ask your dealer for a list or perhaps someone has a link.
Activating the DRL's turns on the middle two "brights" (halogen lights if you have xenon's) to a lower level when the light switch is turned off or the middle position. Turning the light switch to on the main headlights (outer two) and turns off the DRL's. You should turn the light switch to off when you stop the car regarless of DRL's.
I opted for the DRL's for the small amount of extra visibility plus I can leave my xenon's off around dusk, dawn or when it's cloudy. You can also turn on your fog lights with the DRL's.
-murray
If you can't get the most out of the car with 5 gears, a 6-spd will do you no good (the law of diminishing returns comes ot mind). Unless it helps you feel better about yourself because everybody else has it.
Others here have had a poor opinions of these tires. I find their grip to be very good. Very little squeal and a progressive breakaway at the limits. I also keep a watch on prices at The Tire Rack and they regularly sell these tires for less than $100 in 16" form. About half the cost of performance Michelins.
With all the other amazing benefits of technology, seems like these 6-speeds are coming in lighter than the trannys they replace. Thought I read that the 6-speed automatic used in the 745i and Jags is lighter than the 5-speed it replaced. Thinking I read that about MB's development of its 7-speed transmission, too.
Key to lower gearing (for magazine testing) is to ensure the car can go 60 mph without needing to go into 3rd gear. The upshifting costs time. That might be a problem with the 325i (though a solution would be to leave 1st and 2nd gear ratios unchanged from the 5 speed and add the overdrive 6th).
Another point: the BMWUSA website says that the automatic in the 325 has different gears than the automatic in the 330. Not just the overdrive (0.74 vs 0.76) but other gears are also listed as different. I would think that this is not a typo.
But who knows, maybe BMW has changed them? What with Infiniti G35, Mazda 6, Acura TSX, etc. all on the prowl for BMW-type buyers, BMW might be doing all it can quietly to improve performance. Things like new Perf Pkg, revised styling on coupes & convertibles, 6-speeds, etc.
BTW, My 325i manual cannot reach 60 in 2-nd gear in stock setup - it maxes out at around 55-56 mph before the rev limiter kicks in.
-Colin
Hmmm, let's see, PV=nRT, Avogadro's number is, ummmm, I forget, damn, its been only 33 years since I took physics. Anybody?
Based upon what you are experiencing, I am inclined to guess that the BMWs' standard intake is more than adequate for the colder winter months (given air densities and your engines ability to supply enough fuel...), and that the CAI would best be kept for the summer months.
Best Regards,
Shipo
So density(1)/density(2)=T(2)/T(1)
Temperature is absolute ->~300 Kelvin = 80F
At zero F the density increases about 18% above that at 80F if pressure is the same.
93 octane is sea level premium while high altitude premium is 91.
I had ordered a 03 330i which came already and must be picked up by Sat. March 29th the latest. I am leasing the vehicle and the payment we settled on is at the max I set my budget for. Unfortunately I ran into some very large bills sooner than I anticipated and can not pick the car up this soon. I could really use a couple months time to come up with the inception fees and push off the lease payments. I have some ideas running through my head like:
1. lease a left over 03 330ci
2. order another 330i and pay the extra money per month
3. order 04 325ci
I have to come to a decision by the end of the week.I would greatly appreciate and of your comments.
kyfdx
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Good luck.
if that idea doesn't settle well, I'd find the most mechanically sound <$1500 beater you can and drive it for 6-12 months until you are ready to do this new 330 deal.
-Colin
twoof1 Oct 9, 2002 9:20am
Good Luck
Thank you for your advise. I do appreciate it. I have decided not to take delivery of the 330i. I will speak with my salesperson about pricing for a 325i and 325ci. I will order the car which will give me the extra couple of months that I need. The only other option I am looking into is the new Mercedes C230 sport sedan. One of my unexpected bills was a bill for $8,300 from Mercedes for over mileage,diposition fee,and taxes. If I go in on the Mer. They will knock 2,000 off my over mileage. I would prefer a 325 over the C230 but I will have to see what the final numbers are.
kdshapiro
The dealer is open road BMW in NJ
I got a printout of the fault codes from the dealer today. Basically, it has recorded one-time misfires on cylinders 2 and 5 on two different days and they were both due to lean conditions (air exceeding permissible range). I am not overly concerned about 2 misfires over a 5-mo period but having the light on in front of me at all times is annoying. Shouldn't it have reset itself after a few days? Does anyone know of a way to disable it?
Shipo, I agree with you on the octane level. I argued the same with the tech guy at the dealership...
The only thing you can do is disconnect the battery for about an hour. This will clear any hard codes and the lamp goes out.
-Colin
You instantly save the $8300 and you could either keep it for a while, or trade it in on a new car.
Forget about buying one of those service loaners, to save money.
LOL
kyfdx
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Or, Buy something & forget leasing since your mileage indicates that you are NOT a lease prospect.
The BMW is just too addicting not to drive for fun.
Thanks to this Board, I asked them also to change the oil and filter since it had been over a year since it had been done. They did it without cost to me. In addition, when asked about brakes and brake fluid, the dealership flushed and refilled the brake fluid without charge since the car was two years old.
Thanks to all of you who post information here. It is hard to ask the right questions when we don't know what they are.
So far all repairs under 4/50 warranty. All maintenance has been covered under full "free" program. She did replace her worn tires around 38,000 miles (replaced w/OEM Contis). Replaced battery around 39,000 miles. Replaced windshield wipers around 35,000 miles. Replaced front brake pads/rotors around 34,000 miles.
Driver-side leather seat is wearing out. On the left bolster. But she uses it for lots of short trips. Gets in and out a lot.
Wow..$8000 off msrp.. that means a pretty nice 03 325ia could be had for $27K with a CPO warranty. Hope 9 months goes by fast.
regards,
kyfdx
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I considered financing the car but I ran into few problems with that scenario.
1.We built a house a few years ago which we did not have when I leased the car 4 years ago. I need to lower my monthly payments not increase them which is what would happen if I finance the car for another 4-5 years.
2.The other problem is the car had 83,000 miles on it. (Now granted my job is 15 minutes from home as opposed to the 60 minutes it used to be so I will not be putting on nearly the mileage) I would be lucky the car makes it 5 years and if it did, the maintenance costs on a clk430 are not cheap.
3. The other issue is the car seemed to be having some transmission problems which might lead to major expenses down the road
4. The Mercedes bill was the smaller of the large bills that came in the last couple of months meaning I did not have a large amount of money to put down on the car to lower my monthly payments anyway
That lease payment of $800 per month was not much money to spare before I had to pay a mortgage payment along with property taxes that were out the WAZZU!
kdshapiro,
Thanks and I hope you enjoy your car as well. I live minutes from King also but open road was more competitive in terms of dollars and cents.
MACO $550
Systems & Training $160
I questioned these fees and he said that they come directly from BMW and that is what they had to pay to get the car. I almost blew up but didn't because what if he was telling the truth? Any ideas? Are these just dealer fluff fees?
Thanks
Systems and Training? What on earth is that?
2001 Prelude Type SH, 2022 Highlander XLE AWD, 2022 Wrangler Sahara 4Xe, 2023 Toyota Tacoma SR 4WD
Now, seven years after production first began in March, 1996, the 5 Series is still selling robustly and receiving numerous accolades from the automotive press. In 2003 alone, Money Magazine presented BMW with "Best Luxury Car" for the 5 Series, Automobile Magazine presented an All-Star award to the M5 for Best Sports Sedan, and Wards Auto World bestowed upon BMW the thirteenth consecutive 10-Best Engine Award for the 3.0-liter engine which powers the 530i. Further, AMES Award LLC, the auto industry's leading authority on environmental performance, heralded the 5 Series as an environmentally safe 2003 model year product. In a recent Car and Driver comparison test of seven similarly-priced and equipped semi-luxury four-door cars, the BMW 530i finished second, even though it is the oldest of the seven cars in the comparison.
http://waw.wardsauto.com
http://subscribers.wardsauto.com/Microsites/index.asp?srid=10088&- amp;pageid=5991&siteid=26&magazineid=1004&srtype=1
Thanks