BMW 1-Series Forum (F20) 135i - 1Addicts.com > Second Generation 1 Series Forum > 2012 BMW 1-Series Sporthatch (F20) Discussion > ECU Cracked, let the FUN begin!
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      01-11-2015, 07:57 AM   #23
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Originally Posted by oeron View Post
No One and ovekvam, have you guys done this OBD tuning on your cars?
OBD tuning? If I get it right it's not available as OBD (applied through the diagnostics connector in the car, I assume?) yet.

Even if it were, I guess I would skip it. I feel quite cautious as I want to keep the car for a long time and even as I don't drive really much I want no trouble and repair expenses.

If there were an official tune-up from BMW (Performance upgrade) as it is for the 125i I would consider the cost (no doubt, high ). I am not really a "racing driver" to go very far for a performance increase, in general. I want it fast but safe.
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      01-11-2015, 08:36 AM   #24
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Actually, both, 116i and 118i have plenty of performance, no doubt. Just wanna piece more, nothing else.

For 118i, guess BMW won't offer any performance upgrade, if only they'd that would be nice (and expensive of course).

I googled a bit about OBD tuning, so I decided not to go for it. Too risky :
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      01-11-2015, 08:44 AM   #25
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Originally Posted by oeron View Post
I googled a bit about OBD tuning, so I decided not to go for it. Too risky :
But if you want to do any kind of tuning, OBD tuning (or direct reprogramming of the internal maps) would probably be the safest way. Piggyback boxes will make the engine run with less control, as the engine management is being fed wrong sensor inputs, and the outputs are manipulated on the way to the actuators.
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      01-11-2015, 09:05 AM   #26
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Originally Posted by oeron View Post
For 118i, guess BMW won't offer any performance upgrade, if only they'd that would be nice (and expensive of course).
No they won't. Firstly, they would have already. Secondly, their marketing policy about that looks a kind of clear.

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Originally Posted by oeron View Post
I googled a bit about OBD tuning, so I decided not to go for it. Too risky :
There's another point, by the way: AFAIK, our N13 engine is rooted in the Prince engine project BMW had in common with PSA. Peugeots and Citroens (and Mini too?) had huge troubles with the more powerful versions of the engine. It made me doubt considering the current 1 series, back then. Even though it can be irrelevant already (improvements made, "quite different"(?) etc.) tuning above 118i might imply some additional risk.
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      01-11-2015, 04:48 PM   #27
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i think 125i intercooler could be enough for cooling the engine and if im not wrong its just 900 tl in Turkey, i will upgrade my cooler before ecu remap.
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      01-11-2015, 06:39 PM   #28
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Originally Posted by selçukdal View Post
i think 125i intercooler could be enough for cooling the engine
I hope you don't really mean it. Intercooler does not cool the engine, it promotes the engine's output by increasing the input air density. Cooling the air effectively means emission of the heat rejected. In addition, the engine generates more heat along with more power facilitated by the use of intercooler.

Intercooler explanation (Wikipedia)
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      01-12-2015, 09:31 AM   #29
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Originally Posted by No one View Post
I hope you don't really mean it. Intercooler does not cool the engine, it promotes the engine's output by increasing the input air density. Cooling the air effectively means emission of the heat rejected. In addition, the engine generates more heat along with more power facilitated by the use of intercooler.

Intercooler explanation (Wikipedia)
i know how the intercooler works, i guess you got me wrong because i couldnt describe what i really want to mean
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      01-12-2015, 10:13 AM   #30
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Quote:
Originally Posted by ovekvam
Quote:
Originally Posted by oeron View Post
I googled a bit about OBD tuning, so I decided not to go for it. Too risky :
But if you want to do any kind of tuning, OBD tuning (or direct reprogramming of the internal maps) would probably be the safest way. Piggyback boxes will make the engine run with less control, as the engine management is being fed wrong sensor inputs, and the outputs are manipulated on the way to the actuators.
Thanks, i'll keep that in mind. Guess first thing I'll do is to fit my cold air intake (didn't had the time unfortunately), I'm really excited and curious what it's gonna be like. I'll run a dyno test and share the results, but sure it's gonna make a small difference.

Before I decide which option I'd prefer, first I wanna be sure that it is save to pimp my engine by manipulating the software. What no one says makes sense. I better wait, see what OBD tuning brings. As I see there aren't much people here around who've done this kinda tuning. Would like to listen to their experiences.
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      01-12-2015, 10:52 AM   #31
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Quote:
Originally Posted by oeron View Post
Thanks, i'll keep that in mind. Guess first thing I'll do is to fit my cold air intake (didn't had the time unfortunately), I'm really excited and curious what it's gonna be like. I'll run a dyno test and share the results, but sure it's gonna make a small difference.
It depends on how warm air the engine is breathing before your modification. I remember doing some measurements inside the intake of my old E30 M40 318i. When driving at anything over 30 km/h (much power under that speed means only wheelspin anyway), the intake temperature was never more than 2 degrees higher than ambient air temperature. This was with a completely open cone intake.

Less than 2 degrees means a negligible power loss. Any restrictions to block off heat, would do more harm than good due to pressure loss.

I don't know if N13 is like that or not, but I would not expect noticeable gain from a modified intake. The engineers in München know what they are doing.
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      01-13-2015, 07:03 AM   #32
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Well honestly i'm expecting a slight gain in performance, no big hope Rather then performance, i'm hoping for a better sound which is a result from many cold intake tuners as i hear.

What you're saying about the cold air intake is a fact that i haven't noticed until now. Thanks for that. I was convinced of some upgrades i've heared and the member i got it put some consistent facts. You live in Norway if i'm right, down here in Turkey it's a lil warmer, hope the intake will do its purpose based on these conditions

By the way, the dyno results are promising...
http://f20.1addicts.com/forums/showt...8#post16715608
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      01-13-2015, 07:32 AM   #33
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Yes, we sure have a rather large amount of cold air easily available here in Norway!

My experience with air inlet modification is also that it has quite a lot of influence on the sound. Even if it doesen't actually improve the performance, it can make the car sound faster and more powerful. The throttle response seems quicker as well, even if it isn't. Sound should not be underestimated.
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      01-13-2015, 09:03 AM   #34
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Quote:
Originally Posted by ovekvam
Yes, we sure have a rather large amount of cold air easily available here in Norway!

My experience with air inlet modification is also that it has quite a lot of influence on the sound. Even if it doesen't actually improve the performance, it can make the car sound faster and more powerful. The throttle response seems quicker as well, even if it isn't. Sound should not be underestimated.
Will definitely make a vid what it sounds like and try to share the dyno specs. Hope it'll put a smile on my face
Thanks for sharing your experiences ovekvam and no one
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      01-13-2015, 06:26 PM   #35
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I am wondering why all you guys have 116i and 118i but want lots more performance from them, and are willing to pay quite a lot of money for modifications and tuning kits. Why not just buy a 125i or 135i in the first place.
Is there large cost differences and running costs between the 118i and above due to emissions, engine capacity and taxes in your countries.
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      01-14-2015, 12:51 AM   #36
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Quote:
Originally Posted by AusF20 View Post
I am wondering why all you guys have 116i and 118i but want lots more performance from them, and are willing to pay quite a lot of money for modifications and tuning kits. Why not just buy a 125i or 135i in the first place.
Is there large cost differences and running costs between the 118i and above due to emissions, engine capacity and taxes in your countries.
Yes, there is. In Norway the running costs are rather similar, but the initial taxes are very different. I am however happy with the stock 116i performance. I would not mind having the artificial engine sound of the M135i, though!
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      01-14-2015, 12:58 AM   #37
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In Holland the price gap is €10.000 euros between the 118i (base model -manual) and €13.000 between the 125i and 116i (base model - manual).

At the moment theirs only one 125i on sale at the used car section of the BMW website. You could say that the 125(i or d) is a very rare choice in Holland. Because of the price gap people often choose to go for the 320i(€2000 cheaper) or 328i(€4000 more expensive). (f30 - 3 series).

I own a 116i (F21 - autobox) and I like the thought of having more power. BR Performance is just à 1 hour and 20 minutes drive from where i live. It's hard to resist such a interesting power upgrade which can change the complete habit of the car. The reason i havent done it yet is my warranty and that the car haven't had service (only 20.600km) yet is holding me back.
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      01-14-2015, 02:14 AM   #38
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Quote:
Originally Posted by AusF20 View Post
I am wondering why all you guys have 116i and 118i but want lots more performance from them, and are willing to pay quite a lot of money for modifications and tuning kits. Why not just buy a 125i or 135i in the first place.
Is there large cost differences and running costs between the 118i and above due to emissions, engine capacity and taxes in your countries.
Taxes in Turkey are based on engine capasity. These are the taxes we're paying:

<1300 cc : 591 TL
1300-1600 cc : 945 TL
1600-1800 cc : 1.667 TL
1800 - 2000 cc : 2.626 TL
2000 - 2500 cc : 3.939 TL
2500 - 3000 cc : 5.491 TL
3000 - 4000 cc : 1.3147 TL
1$ = 2,3 TL , 1€ = 2,7 TL

By the way, the 1 series which are being sold in Turkey are: 116d, 116i and 118i. 3 series models are: 316i, 320i ED, 320d and 328i. You can't buy anything else.

The official price for 316i is 43.331 € and for 328i 64.833 € (due to taxes).

So that means, everything above 1,6 lt becomes too expensive.

Guess that answers also your question, why i can't choose a 125i or 135i
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      01-14-2015, 02:30 AM   #39
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I guess that cars are the one of few things we are not paying much tax for in Sweden.
Only normal VAT (25%) and a yearly CO2 based road tax. 116i is 80€ per year. I guess we can thank Volvo for that. All other Scandinavian have crazy car taxes.
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      01-14-2015, 02:47 AM   #40
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Originally Posted by ipp View Post
I guess that cars are the one of few things we are not paying much tax for in Sweden.
Only normal VAT (25%) and a yearly CO2 based road tax. 116i is 80€ per year. I guess we can thank Volvo for that. All other Scandinavian have crazy car taxes.
Be sure you can be more then happy with that We are being punished here.

BMW has recently added M135i XDrive in Turkey, the price is 91.890 €. Just wanted to update.
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      01-14-2015, 03:14 AM   #41
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Originally Posted by oeron View Post
Be sure you can be more then happy with that We are being punished here.

BMW has recently added M135i XDrive in Turkey, the price is 91.890 €. Just wanted to update.
Due to low oil price, the Norwegian currency is rather weak right now. That means the M135i XDrive is actually cheaper in Norway than in Turkey now, measured in Euros!

Only 85K.
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      01-14-2015, 03:23 AM   #42
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Quote:
Originally Posted by ovekvam View Post
Due to low oil price, the Norwegian currency is rather weak right now. That means the M135i XDrive is actually cheaper in Norway than in Turkey now, measured in Euros!

Only 85K.
Cool, this could be a reason to start to work in Norway But compared with Germany (44.000 €) the prices are still
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      01-18-2015, 11:54 AM   #43
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Its been confirmed over on the M3/M4 forum that they can do a ODB flash as well, after your ECU has been opened. That means it would be possible to re-flash with a personal device after the dealer has upgraded your car for a scheduled service. This is really exiting news!
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      01-19-2015, 07:46 PM   #44
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ovekvam
Yeah, being a petrol head in Norway/Denmark is kind of a sad story... Turkey are expensive too!

For you guys who think cars in your country are expensive:
http://www.bmw.dk/dk/da/newvehicles/..._tredoers.html

Those are base list prices. 7,5dkr = 1euro

116i - 46130euro
M135i - 86800euro
M135i Xdrive - 99000euro
8 speed automatic for all models - 4930euro

Happy to be in China even though cars are not really cheap here either.
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Last edited by harkes; 01-19-2015 at 11:30 PM..
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