E91 Straight Six Bearding

E91 Straight Six Bearding

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Discussion

ferrisbueller

23,868 posts

176 months

Friday 22nd November 2019
quotequote all
More reliable?

g3org3y

14,388 posts

140 months

Friday 22nd November 2019
quotequote all
phil_cardiff said:
rallycross said:
stevemcs said:
Question about the 325i with the 3.0 engine rather than the 2.5, are they any good ? I realise they can be fitted with the 3.0 inlet manifold to increase power. Or should i just consider a 30/35d.
The 325i 2.5 is one to avoid - slow but thirsty.
The 3:0 325.i is a lot better and if you get a post 2009 model they can be remapped back to 330/130i level of power for less than £300:
The 325i is not one to avoid as it is more reliable and quick enough if you use the gearbox.

Your money, your choice. Obviously.
AFAIK:
2.5 is the N52
3.0 is the N53 (and the various issues associated with it).

MajorMantra

871 posts

61 months

Friday 22nd November 2019
quotequote all
rallycross said:
The 325i 2.5 is one to avoid - slow but thirsty.
"Avoid" is a bit strong. I'm sure the 3.0 is better (similar mpg but more performance I'm told...) but in everyday driving the 2.5 is perfectly pleasant, and the cost of entry is a good bit lower.

phil_cardiff

4,445 posts

157 months

Friday 22nd November 2019
quotequote all
g3org3y said:
phil_cardiff said:
rallycross said:
stevemcs said:
Question about the 325i with the 3.0 engine rather than the 2.5, are they any good ? I realise they can be fitted with the 3.0 inlet manifold to increase power. Or should i just consider a 30/35d.
The 325i 2.5 is one to avoid - slow but thirsty.
The 3:0 325.i is a lot better and if you get a post 2009 model they can be remapped back to 330/130i level of power for less than £300:
The 325i is not one to avoid as it is more reliable and quick enough if you use the gearbox.

Your money, your choice. Obviously.
AFAIK:
2.5 is the N52
3.0 is the N53 (and the various issues associated with it).
That's what I meant, thanks for clarifying.

Mr Tidy

10,098 posts

76 months

Saturday 23rd November 2019
quotequote all
MajorMantra said:
"Avoid" is a bit strong. I'm sure the 3.0 is better (similar mpg but more performance I'm told...) but in everyday driving the 2.5 is perfectly pleasant, and the cost of entry is a good bit lower.
Lower entry cost is why I ended up buying an E91 325i with the N52 engine early last year.

But it just felt a bit sluggish, so earlier this year I replaced it with an E90 330i with the N52 engine as I didn't want to gamble on the potential N53 engine issues. An E91 330i was always going to be out of budget - Tourings just seem to command higher prices, and don't seem to come up for sale too often.

JakeT

2,781 posts

69 months

Saturday 23rd November 2019
quotequote all
I performed one of those really unglamorous, yet satisfying jobs this morning.

I sorted out the rear wiper.

Since I’ve had this car I’ve noticed the rear wiper was a little slower than I’d like, and wasn’t parking properly. Cars with wipers just stuck at haphazard angles. E91s and 1 series seem to be notorious for this.

It’s a few bolts, knock the inner shaft out and then a sand with some 800 grit wet and dry, general cleaning and scraping, and back together. The wiper now moves much more freely, wipes properly, and parks where it should do. Just in time for winter. smile

rallycross

10,530 posts

186 months

Saturday 23rd November 2019
quotequote all
MajorMantra said:
"Avoid" is a bit strong. I'm sure the 3.0 is better (similar mpg but more performance I'm told...) but in everyday driving the 2.5 is perfectly pleasant, and the cost of entry is a good bit lower.
It’s good advice I’ve had all the different E90/E91 models and the 2.5i 325 (I’ve had 3) feels lazy and underpowered v’s a 3.0 and the fuel consumption is no better than a 3.0 so now these cars are relatively cheap to buy best avoid buying a 2.5 if you can get a 3.0 - but of course a 2.5 is still a much better choice than a 4 cylinder one as nice and silky smooth and copes fine with big mileage.

Over the years I’ve had 320i, 320d, 325i (2.5 and 3.0) and 325d, 335i, 335d; 330d and 330i (n52 and n53) I’d always pick a 6 cylinder version and now these cars are getting older the one for me would be 330i n52 in manual.

cerb4.5lee

13,346 posts

129 months

Saturday 23rd November 2019
quotequote all
rallycross said:
I’d always pick a 6 cylinder version and now these cars are getting older the one for me would be 330i n52 in manual.
I've always thought how much of a shame is it how rare/difficult to get hold of the 330i n52 manual is though. It is also my ideal, and I foolishly didn't wait and went for the auto with my old one.

stevemcs

3,812 posts

42 months

Saturday 23rd November 2019
quotequote all
How does the 335d and 325i N53 compare, it would have to be auto.

cerb4.5lee

13,346 posts

129 months

Saturday 23rd November 2019
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stevemcs said:
How does the 335d and 325i N53 compare, it would have to be auto.
In short...one engine has plenty of torque and the other one hasn't. In my experience the auto gearbox suits the diesel engine far more than it does the petrol engine.

helix402

5,202 posts

131 months

Saturday 23rd November 2019
quotequote all
stevemcs said:
How does the 335d and 325i N53 compare, it would have to be auto.
The 335d is very fast and quite economical. The 325i isn’t. (No offence intended to anyone who likes the 325i. We all have different tastes).

330ti

80 posts

24 months

Saturday 23rd November 2019
quotequote all
Mr Tidy said:
Lower entry cost is why I ended up buying an E91 325i with the N52 engine early last year.

But it just felt a bit sluggish, so earlier this year I replaced it with an E90 330i with the N52 engine as I didn't want to gamble on the potential N53 engine issues. An E91 330i was always going to be out of budget - Tourings just seem to command higher prices, and don't seem to come up for sale too often.
How many times have you told everyone this ? A million ?

cerb4.5lee

13,346 posts

129 months

Saturday 23rd November 2019
quotequote all
helix402 said:
stevemcs said:
How does the 335d and 325i N53 compare, it would have to be auto.
The 335d is very fast and quite economical. The 325i isn’t. (No offence intended to anyone who likes the 325i. We all have different tastes).
I will never forget trying to keep up with my Mrs in the 640d when I was driving the E90 330i. No contest springs to mind performance wise between the two engines for sure.

g3org3y

14,388 posts

140 months

Saturday 23rd November 2019
quotequote all
rallycross said:
MajorMantra said:
"Avoid" is a bit strong. I'm sure the 3.0 is better (similar mpg but more performance I'm told...) but in everyday driving the 2.5 is perfectly pleasant, and the cost of entry is a good bit lower.
It’s good advice I’ve had all the different E90/E91 models and the 2.5i 325 (I’ve had 3) feels lazy and underpowered v’s a 3.0 and the fuel consumption is no better than a 3.0 so now these cars are relatively cheap to buy best avoid buying a 2.5 if you can get a 3.0 - but of course a 2.5 is still a much better choice than a 4 cylinder one as nice and silky smooth and copes fine with big mileage.

Over the years I’ve had 320i, 320d, 325i (2.5 and 3.0) and 325d, 335i, 335d; 330d and 330i (n52 and n53) I’d always pick a 6 cylinder version and now these cars are getting older the one for me would be 330i n52 in manual.
What are your thoughts re the well documented issues of the N53? A 'when' rather than 'if' situation or just down to luck?

g3org3y

14,388 posts

140 months

Saturday 23rd November 2019
quotequote all
stevemcs said:
Thanks, but E91 330i’s with xenons and heated seats are a little thin on the ground, 325s are more plentiful but 335ds are even easier to find. Although not at 4K
I usually keep an eye on Autotrader to see what's available 'locally'. 330is seem to be quite uncommon, especially in Touring form.

LOADS of 320is though. rolleyes

rallycross

10,530 posts

186 months

Saturday 23rd November 2019
quotequote all
g3org3y said:
What are your thoughts re the well documented issues of the N53? A 'when' rather than 'if' situation or just down to luck?
I’ve had 3 of the 330i N53, it’s a great engine that loves revs, of the 3 I’ve had only one had any problems and you need a really good specialist to avoid painful bills, far too complicated for what it is.

dcb

5,352 posts

214 months

Saturday 23rd November 2019
quotequote all
g3org3y said:
I usually keep an eye on Autotrader to see what's available 'locally'. 330is seem to be quite uncommon, especially in Touring form.

LOADS of 320is though. rolleyes
Of course. 320 outsell 330 by about 10:1

As we know, 320 is about as far as you need to go.

Once you've got something that will cruise happy at 120 mph all day every day,
some 50 mph beyond the UK limit, you've got enough power.

Works well on the only unlimited roads in Europe, too.





g3org3y

14,388 posts

140 months

Saturday 23rd November 2019
quotequote all
dcb said:
g3org3y said:
I usually keep an eye on Autotrader to see what's available 'locally'. 330is seem to be quite uncommon, especially in Touring form.

LOADS of 320is though. rolleyes
Of course. 320 outsell 330 by about 10:1

As we know, 320 is about as far as you need to go.

Once you've got something that will cruise happy at 120 mph all day every day,
some 50 mph beyond the UK limit, you've got enough power.

Works well on the only unlimited roads in Europe, too.
Miserable 4 cylinder malarkey. frown

Mr Tidy

10,098 posts

76 months

Saturday 23rd November 2019
quotequote all
330ti said:
How many times have you told everyone this ? A million ?
And how many times have you made similar unhelpful comments? banghead

bodhi

4,786 posts

178 months

Saturday 23rd November 2019
quotequote all
g3org3y said:
dcb said:
g3org3y said:
I usually keep an eye on Autotrader to see what's available 'locally'. 330is seem to be quite uncommon, especially in Touring form.

LOADS of 320is though. rolleyes
Of course. 320 outsell 330 by about 10:1

As we know, 320 is about as far as you need to go.

Once you've got something that will cruise happy at 120 mph all day every day,
some 50 mph beyond the UK limit, you've got enough power.

Works well on the only unlimited roads in Europe, too.
Miserable 4 cylinder malarkey. frown
To be fair the 320i I borrowed was pleasant enough to chuck around, reasonably smooth, and went OK if you poked it with a big stick. Was no better on fuel than my dad's old 325i though, and was absolutely gutless below 2000 rpm, where an N52 will still pull.

The N52 is also 10x less likely to st itself also, so I have no idea why you'd buy the 320.