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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > E90 2011 328XI - Cold Start / Rough Idle



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      08-08-2011, 02:50 PM   #1
Ndx
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E90 2011 328XI - Cold Start / Rough Idle

Hello,

My cold starts are longer then warm ...
Car is not smooth after startup ...

Warm idle is OK but no great ...

Car has no warranty ...

No Codes/Shadow Codes

Cleaned MAF, Replaced Battery

Now thinking but Fuel Pump, Injectors or there is Vacuum Leak ...

Any ideas ?

Thx
Ndx
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      08-08-2011, 05:57 PM   #2
Glim
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How many mi/km on the MAF and spark plugs?
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      08-08-2011, 06:01 PM   #3
Ndx
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7000Km car just barely broke in ...
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      08-08-2011, 06:20 PM   #4
iflyjetzzz
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Start with something easy. What kind of gas are you using? A high quality premium fuel?
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      08-08-2011, 06:45 PM   #5
Glim
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Quote:
Originally Posted by Ndx View Post
7000Km car just barely broke in ...
7000 km and no warranty? This is a story I would love to hear, what is the history?
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      08-08-2011, 07:02 PM   #6
Chriztofor
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Quote:
Originally Posted by Glim View Post
7000 km and no warranty? This is a story I would love to hear, what is the history?
I am all ears! The story you are about to hear are the reasons he is having problems.
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If no codes are being thrown use Chevron Techron fuel injector cleaner (concentrate). It solves rpm fluctuating upon cold start-up. Also, for most BMW problems start off by scanning your car with the Peake Research Tool. It contains the actual BMW codes. If you want to register a newly installed battery for free (just buy a $10 cable) and google/download BMWLogger
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      08-08-2011, 08:52 PM   #7
Ndx
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Car was Imported from a different part of world ... N.A. BMW will not warrant any work ...

Any ideas what could be the problem ... I know that there is a lot posts.

Premium Gas only VPOWER
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      08-09-2011, 01:40 AM   #8
Glim
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So you bought it unseen from out of country with an unknown history. If you bought it from north America you can order a carfax report from the states or a carproof report from Canada to see if anything is amiss.

Also ask your local dealer for a printout of the cars maintainance history, they will first blackout the previous owners information.

I would take it into my local BMW dealership and have them give me a repair estimate then decide whether I would do any of the work myself.
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