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      06-23-2017, 06:10 AM   #1
Vish8895
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Getting another 335i - Any advice?

Hi all,

I am going to see a E92 335i M Sport Manual tomorrow. I had an auto E92 335i N54 M Sport 2 years ago and loved everything except the 6-speed auto box (each to their own but it was painfully slow/unresponsive for me).

Anyway I didn't do much research back then and just bought one the first one I could P/X with.

I am aware of the common known issues such as the HPFP and wastegates, but just wondered if anyone could give me some key pointers?

I have read a few buying guides but they mostly seem generic.

I have had the car booked in to a BMW specialist near the seller for a pre-purchase inspection and they said they are quite well educated on these cars, saying their garage system also tells them common areas of failure etc.

Just really after any advice that could save me buying a lemon or running into hidden problems!

Thanks all
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      06-24-2017, 12:31 PM   #2
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Quote:
Originally Posted by Vish8895 View Post
Hi all,

I am going to see a E92 335i M Sport Manual tomorrow. I had an auto E92 335i N54 M Sport 2 years ago and loved everything except the 6-speed auto box (each to their own but it was painfully slow/unresponsive for me).

Anyway I didn't do much research back then and just bought one the first one I could P/X with.

I am aware of the common known issues such as the HPFP and wastegates, but just wondered if anyone could give me some key pointers?

I have read a few buying guides but they mostly seem generic.

I have had the car booked in to a BMW specialist near the seller for a pre-purchase inspection and they said they are quite well educated on these cars, saying their garage system also tells them common areas of failure etc.

Just really after any advice that could save me buying a lemon or running into hidden problems!

Thanks all
Have you thought about one with a DCT? Much better than the regular auto i find.
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      06-26-2017, 06:02 AM   #3
imy
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look into xHP. looks like it deals with the issues you are having. I am in the process of having a customised BEF made to work with xHP.

In terms of what to look for, i dont know what mileage the car has but:

Turbos, wastegate rattles
Injectors
HPFP - slightly longer cranks are a symptom of failure
Water pump

are common known issues.

I would also check the history, see how often the oil, plugs and coils were changed.
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      06-26-2017, 08:29 AM   #4
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Also, there have been a number of recalls/'quality enhancements' on this model (injectors, coils etc). Make sure yours has had these done...
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      06-26-2017, 08:36 AM   #5
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This time you getting an N55?
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      07-03-2017, 04:43 PM   #6
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^^ go for an n55 much more reliable and less prone to turbo failures.
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      07-04-2017, 03:22 AM   #7
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Thanks for the input guys! The car was snaffled less than 12 hours before I was set to go and get it!

I am going to view a 2008 135i M-Sport Coupe (N54) manual this Friday.

I personally have been more bias towards the N54, mainly because from a tuning aspect they seem much easier to squeeze power out of e.g. 500 for a JB4 and 400bhp off the bat (claimed).

I have a Dual Clutch Golf GTI at the moment and am always left amazed by the speed of shifts, that being said I keep wishing it was manual now I live out in the sticks and have miles upon miles of sloping, twisty, fresh tarmac country lanes to devour!

This 135i has been serviced every 10-15k/12-18 months from new according to the book. Waterpump done last year, plugs last done this year, only has 62k and 2 previous owners.
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      07-04-2017, 03:24 AM   #8
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Also, there have been a number of recalls/'quality enhancements' on this model (injectors, coils etc). Make sure yours has had these done...
Whats the best way to do this?

Cheers
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      07-04-2017, 03:29 AM   #9
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Quote:
Originally Posted by Vish8895 View Post
Whats the best way to do this?

Cheers
Take your car's key to any BMW service department. The receptionist has access to a key reader which can download your car's history.
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      07-04-2017, 04:34 AM   #10
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Take your car's key to any BMW service department. The receptionist has access to a key reader which can download your car's history.
Thanks!

So it isn't something that is needed to be done before purchasing?

I can do it after the fact. I.e if they haven't been done it shouldn't be a reason to walk away?
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      07-05-2017, 09:27 AM   #11
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If you've got the reg, or ideally the chassis number, you can just call the dealer - no need to take keys there.

If you can also find out where it was purchased from, or where it's had most of it's services, that might help as sometimes the different franchises "claim" to not be able to tell you unless the car's been with their particular franchise (however, this is horsehit, as my mate works at BMW and I've always spoken to him about potential purchases and their service/recall history).

As mentioned above, I'd have the N55 over the N54 - but whatever blows your hair back.
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      07-05-2017, 02:20 PM   #12
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Quote:
Originally Posted by Vish8895 View Post
Thanks for the input guys! The car was snaffled less than 12 hours before I was set to go and get it!

I am going to view a 2008 135i M-Sport Coupe (N54) manual this Friday.

I personally have been more bias towards the N54, mainly because from a tuning aspect they seem much easier to squeeze power out of e.g. 500 for a JB4 and 400bhp off the bat (claimed).

I have a Dual Clutch Golf GTI at the moment and am always left amazed by the speed of shifts, that being said I keep wishing it was manual now I live out in the sticks and have miles upon miles of sloping, twisty, fresh tarmac country lanes to devour!

This 135i has been serviced every 10-15k/12-18 months from new according to the book. Waterpump done last year, plugs last done this year, only has 62k and 2 previous owners.
Whilst I am usually biased as I have a JB4 and a custom BEF, you can get mhd for the n55 which have good results for a very small outlay.
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      07-05-2017, 03:23 PM   #13
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Thanks for the feedback RE: the N55 and the service history/recall work.

As for the N55, right now cars with the N55 are out of my budget but I still think I'd go N54 myself, something about it just seems more grass roots almost. I can't put my finger on it but in my mind the n55 seems like a softer version made to last longer rather than be the all out monster it could of been. Again don't know why I have this opinion but it must be from the things I've read online as I have never owned one!

The seller has been very co-operative, sending me pics of every page of the service book and the vin etc. I will try and call the main dealer who supplied and did the first few services and see what they can tell me.

Thanks all, the advice/input is appreciated!
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      07-05-2017, 04:28 PM   #14
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My e92 had the N54, and my F32 435 has the N55.

I prefer the sound of the N55 to be honest, and more comfort to be had knowing the turbos aren't going to start clattering and/or need replacement at vast expense.

If the N55 based ones are out of your price range, that's fair enough though, but I haven't seen much evidence over the years to suggest the N55 is significnatly less tune-able than the N54. Maybe 5 years or so ago, there was less available for the N55, but that's just because it was newer on the scene than the N54.
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      07-05-2017, 04:43 PM   #15
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Originally Posted by Russbmw View Post
My e92 had the N54, and my F32 435 has the N55.

I prefer the sound of the N55 to be honest, and more comfort to be had knowing the turbos aren't going to start clattering and/or need replacement at vast expense.

If the N55 based ones are out of your price range, that's fair enough though, but I haven't seen much evidence over the years to suggest the N55 is significnatly less tune-able than the N54. Maybe 5 years or so ago, there was less available for the N55, but that's just because it was newer on the scene than the N54.
Thanks for the input.

I think the vast amount of my bias towards the N54 over the N55 is due to over reading forum posts about how un-tuneable the N55 is (old posts from before the period when N55 bolt-ons hit the shelves maybe?).

I agree the N54 common problems do cause concern, but at the same time my biggest concern is the waste gate rattle and luckily there is a N54/N55 specialist 15 mins from me who does wastegate rebuilds, walnut blasting, DP fitting etc etc.

Not saying I'd be over the moon to pay for repairs but their quoted prices are not ridiculous.

I think my bias towards the N54 is just based on outdated posts dating back to before the N55 had easily accessible bolt-ons like the N54. Having said that, it's still out of budget so N54 it will be!
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      07-13-2017, 06:16 PM   #16
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It's six of one, half a dozen of the other with this debate. The N54 has its foibles, but they are well documented now and the fixes are relatively straightforward for those in the know.

Many engines have already had these fixes carried out too. It seems the general (albeit internet) consensus is the N54 is a stronger platform, whereas the N55 was a function of BMW pulling back on the expenses and making a more cost effective engine which ended up having fewer issues with its ancillaries.

But, depending on what you're after it's the small things, like the N54 using a steel triple layered head gasket that make it quite a robust bit of kit and demonstrative of the mindset BMW had when they kicked off the N54 project.

Mine has had its issues, no doubt, - injectors and both turbos replaced under warranty by the previous owner, new waterpump replaced under my ownership, and a few other bits such as belt tensioner and pulleys, but for me at least, I'd rather have a few niggles and know that the core of the engine is overbuilt, rather than have an engine whose ancillaries are less failure prone but whose fundamentals were designed with cost in mind.

The truth is though that short of the design teams for both engines revealing their ins and outs, no one will ever really know for sure.
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      07-14-2017, 03:19 AM   #17
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It's six of one, half a dozen of the other with this debate. The N54 has its foibles, but they are well documented now and the fixes are relatively straightforward for those in the know.

Many engines have already had these fixes carried out too. It seems the general (albeit internet) consensus is the N54 is a stronger platform, whereas the N55 was a function of BMW pulling back on the expenses and making a more cost effective engine which ended up having fewer issues with its ancillaries.

But, depending on what you're after it's the small things, like the N54 using a steel triple layered head gasket that make it quite a robust bit of kit and demonstrative of the mindset BMW had when they kicked off the N54 project.

Mine has had its issues, no doubt, - injectors and both turbos replaced under warranty by the previous owner, new waterpump replaced under my ownership, and a few other bits such as belt tensioner and pulleys, but for me at least, I'd rather have a few niggles and know that the core of the engine is overbuilt, rather than have an engine whose ancillaries are less failure prone but whose fundamentals were designed with cost in mind.

The truth is though that short of the design teams for both engines revealing their ins and outs, no one will ever really know for sure.
I think you have pretty much tapped into the gut feeling I had but was unable to explain.

Everything I've read about the N54 vs N55 has given me the consensus that the N54 is a strong block with inferior bolt-ons as apposed to the other way round.
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