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530i vs. 530d vs. 535d

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Old 01-17-2007, 07:20 AM
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Originally Posted by cerbera' post='379509' date='Jan 17 2007, 03:22 PM
No....

The diesels are turbo charged....which gives the remapper a lot more to play with.....its still about getting more fuel in per combustion stroke, but with the turbo they can play with boost pressure, overrun settings etc...
So it seems that there must be examples of a BMW e60 diesel model which previously lost out to a petrol model where, after remapping both by the same company, the tables were turned?

ABC
Old 01-17-2007, 08:06 AM
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yep..

530i, 258 bhp/300Nm before remapping, 268bhp/314Nm after ( claimed )
530d, 231 bhp/500Nm before, 260bhp/580Nm after...

The remapped 530d will leave the remapped 530i for dead - the bhp is so close variations from engine to engine would cover it, the torque will make all the difference.
Old 01-17-2007, 08:14 AM
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Originally Posted by cerbera' post='379545' date='Jan 17 2007, 05:06 PM
yep..

530i, 258 bhp/300Nm before remapping, 268bhp/314Nm after ( claimed )
530d, 231 bhp/500Nm before, 260bhp/580Nm after...

The remapped 530d will leave the remapped 530i for dead - the bhp is so close variations from engine to engine would cover it, the torque will make all the difference.
The figures have never been the issue. We've had these kind of numbers discussions on this forum several times but there are other factors which come into play.

And then there's the nature of the comparison... 0-100kmph? 0-100mph? Quarter mile? Laps of a racetrack.

It would just be nice to get a real example as well as being "guided" by the numbers.

ABC
Old 01-17-2007, 08:19 AM
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Originally Posted by aybeesea' post='379486' date='Jan 17 2007, 03:21 PM
What about a remapped 530i?

etc etc

ABC
I just thought it was strange to mention that a remaped 535d would kill a 530i since it does it stock too.
Old 01-17-2007, 08:21 AM
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Originally Posted by the-oneil' post='379447' date='Jan 17 2007, 12:56 PM
535d & 530d share engines The 535d just have an additional smaller turbo that kicks in at low revs (iliminating therefore turbo lag).

a remaped 535d will kill a petrol 530i and would give a V8 540i a good run indeed.
true, the electronics are different, I have asked if some could swap engine (just for fun) but no not easy job so nobody does that...
Old 01-17-2007, 08:32 AM
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Originally Posted by MrTrilby' post='379475' date='Jan 17 2007, 01:38 PM
I have a 218BHP 530d auto. I've not noticed significant turbo lag. It does suffer a lot of off boost lethargy below 1800RPM, but that's quite different, and not an issue at all during spirited driving (plenty enough gears to keep the revs up). The torque converter can behave very oddly, but again, that mostly goes away a little above 2kRPM. It's a plenty fast enough car for me, but it does run out of steam at the top end (and the top end is not so very far away). So whilst it provides entertainment from the turbo-torqued kick in the bum, it takes it away when it runs out of puff early.

Given the new line up of engines, I'd be strongly motivated to test drive both the 530i and the 530d. The claimed economy of the auto 530i is now incredible, and you get a proper rev range (at the expense of the turbo kick in the bum). Only a test drive can tell you which you prefer, and what the real economy is that you're likely to get out of them.

My experience with my 530d is that its economy is fabulous on long dull constant speed motorway runs, but on shorter journeys a combination of the weird torque convertor (hopefully now fixed with the LCI) and the fact diesels take an age to warm up, mean it's economy can be "disappointing".

It's a much closer thing now than it used to be IMHO.
I'd agree with all of that... The performance really steps up at about 2.4krpm, something I guess doesn't happen on the 530i/535d... I had my heart set on a 535d but seeing the updated figures the 530i looks very attractive. The only worry would be the residuals because I bet the 530d will still do better on that regards even though the real-life mpg figures aren't far apart for the auto versions...
Old 01-17-2007, 11:25 AM
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Thanks to you all for your input.

I certainly won't be getting into the remapping of the engine, so I can factor this out. From what I read city driving is going to negate much of the supposed fuel economy gains (which is most of my driving). There's next to nothing between the CO2 emissions and it's not a company car anyway, but I don't want to get shafted by some future 'green' Chancellor of the Exchequer.

The last BMW I had was a 323i Couple ('99) and although the engine was peachy smooth it never felt that it had that much grunt (170bhp I think).

I think I arrange a test drive in a pre-LCI 530i and see what it feels like. Previously I never considered it due to the fuel economy and CO2 but now the 530i and 530d are so close in these respects.

On the plus side of the diesel I really like that thump you get from 1500-3000 rpm, with a petrol you need to wring it's neck a bit more.

In the ideal world I would go for an LCI 535d (depending on how much discount I can negotiate). The 535i (petrol bi-turbo) might be a cracker but I've not seen any suggestion that this will be available in the UK and the cost might be out of my budget too.

I'm not in a panic to get a car so I suspect that more test drives are the order of the day even if they're of the current engines.

Thanks again

Dazza
Old 01-17-2007, 11:55 AM
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[quote name='Dazza' post='379630' date='Jan 17 2007, 09:25 PM']Thanks to you all for your input.

I certainly won't be getting into the remapping of the engine, so I can factor this out. From what I read city driving is going to negate much of the supposed fuel economy gains (which is most of my driving). There's next to nothing between the CO2 emissions and it's not a company car anyway, but I don't want to get shafted by some future 'green' Chancellor of the Exchequer.

The last BMW I had was a 323i Couple ('99) and although the engine was peachy smooth it never felt that it had that much grunt (170bhp I think).

I think I arrange a test drive in a pre-LCI 530i and see what it feels like. Previously I never considered it due to the fuel economy and CO2 but now the 530i and 530d are so close in these respects.

On the plus side of the diesel I really like that thump you get from 1500-3000 rpm, with a petrol you need to wring it's neck a bit more.

In the ideal world I would go for an LCI 535d (depending on how much discount I can negotiate). The 535i (petrol bi-turbo) might be a cracker but I've not seen any suggestion that this will be available in the UK and the cost might be out of my budget too.

I'm not in a panic to get a car so I suspect that more test drives are the order of the day even if they're of the current engines.
Old 01-17-2007, 11:55 AM
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Dazza, if you want economy get a diesel with 6.8l/km +10% practically, 530i with 9.0l/km +10% practically. a 530i is just a little more refined in noise and vibrations. Nor an equal diesel or gas car is faster (unless you compare 540i vs. 530d).
I have exp. in g asX5 4.4i auto and 530d remapped and diesel is a bit more relaxed in everyday driving. Both a superb driving machines. A 535d is a mean machine and well worth considering, but stands up to normal diesel consumption. (more like a gas car).

I chose last friday for an 525d E61 after 15 years driving a gasoline car so I'm also curious.
Old 01-17-2007, 12:19 PM
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Originally Posted by eddy' post='379651
In the ideal world I would go for an LCI 535d (depending on how much discount I can negotiate). The 535i (petrol bi-turbo) might be a cracker but I've not seen any suggestion that this will be available in the UK and the cost might be out of my budget too.
The 535d is fab but they are charging quite a premium for it.
I don't think I could live with a 535i (when it does arrive) as when driven cheerfully it will probably drink fuel (like its cousin the 335i) and after driving diesels for years, I fear guilt and stinginess at the pump would spoil the fun.


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