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2010 2011 BMW 5 Series Forum F10 BMW 5-Series (F10) Forums General 5-Series Sedan and Wagon (F10 / F11) Forum weired RPM drop when shift into reverse
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      02-22-2024, 04:47 AM   #1
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weired RPM drop when shift into reverse

Hi, Everybody. My English skill is bad, But I need you guys help.

I have 2011 528i with N52B30A engine. and mileage is 131,000km(82,000miles)
Recently, RPM drops to around 500 when I shift gear from D to R. And Gauge cluster LCD and DRL will black out, also audio turns off briefly.

And I have a strange error code related VANOS and ICM.
The code is 130308 : VANOS, OUTLET: CONTROL ERROR, POSITION NOT REACHED
480007 : KL30 OVERVOLTAGE

What could be causing this problem?
Thanks!

Last edited by Kimura; 02-22-2024 at 09:25 PM..
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      02-22-2024, 07:21 PM   #2
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Quote:
Originally Posted by Kimura View Post
Hi, Everybody. My English skill is bad, But I need you guys help.

I have 2011 528i with N52B30A engine. and mileage is 131,000km(82,000miles)
Recently, RPM drops to around 500 when I shift gear from D to R. And Gauge cluster LCD and DRL will black out, also audio turns off briefly.

What could be causing this problem?
Thanks!
Start with the cheapest possibility. BMW's (as well as most modern, electronically-heavy laden cars) are VERY sensitive to electrical load. That said...

How old is the battery? What is its condition? If the battery was replaced, was it registered?

How's the trans fluid level? Does the rpm drop going from park to drive or reverse also? Was the trans fluid ever changed?
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      02-22-2024, 09:16 PM   #3
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Quote:
Originally Posted by ezaircon4jc View Post
Start with the cheapest possibility. BMW's (as well as most modern, electronically-heavy laden cars) are VERY sensitive to electrical load. That said...

How old is the battery? What is its condition? If the battery was replaced, was it registered?

How's the trans fluid level? Does the rpm drop going from park to drive or reverse also? Was the trans fluid ever changed?
Hi, Thank you for your reply.
I've changed Battery last year, and drived almost 10,000km (6,000miles) after replaced it.
And trans fluid has been changed at 70,000km (44,000miles)

Also, I've replaced rebuilt alternator recently. but no changes.

Edit : There's no error on gauge or display. there's only two error codes at BimmerLink tester.

Last edited by Kimura; 02-22-2024 at 09:26 PM..
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      02-22-2024, 09:56 PM   #4
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Quote:
Originally Posted by kimura View Post
hi, thank you for your reply.
I've changed battery last year, and drived almost 10,000km (6,000miles) after replaced it.
And trans fluid has been changed at 70,000km (44,000miles)

also, i've replaced rebuilt alternator recently. But no changes.

Edit : There's no error on gauge or display. There's only two error codes at bimmerlink tester.
あなたが最もよく理解できるように、翻訳機を使用しています。テクノロジーを使用すると、言語に関係なく非 常にうまくコミュニケーションできます。オルタネーターをリビルト品に交換しましたか?それともオルタネー ターを作り直しましたか?アースストラップはすべてしっかりと固定されていますか?
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      02-22-2024, 09:58 PM   #5
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Vanos ソレノイドを交換したことがありますか?
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      02-23-2024, 12:16 AM   #6
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Quote:
Originally Posted by ChiltiCoatl89 View Post
Vanos ソレノイドを交換したことがありますか?
Hi, I appreciate for your translation!
I've never changed VANOS solenoid.

So, I'm going to replace solenoid by watching instruction video ASAP.
But I'm wondering if replacing the solenoid will make a dramatic difference.
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      02-23-2024, 12:20 AM   #7
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Quote:
Originally Posted by ChiltiCoatl89 View Post
あなたが最もよく理解できるように、翻訳機を使用しています。テクノロジーを使用すると、言語に関係なく非 常にうまくコミュニケーションできます。オルタネーターをリビルト品に交換しましたか?それともオルタネー ターを作り直しましたか?アースストラップはすべてしっかりと固定されていますか?
My mechanic replaced it with a rebuilt alternator, but I'm not sure earth strap is secured or not
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      02-23-2024, 01:14 AM   #8
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Quote:
Originally Posted by kimura View Post
my mechanic replaced it with a rebuilt alternator, but i'm not sure earth strap is secured or not
該当する場合はオルタネーターの接続も含め、すべての電気接続とアース接続を確認してください 。
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      02-23-2024, 01:17 AM   #9
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私たちの仲間のメンバーの一人が述べたように、高価なものを交換することを決定する前に、検査など、最もお 金がかからない最も単純なものから始めてください。
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      02-23-2024, 01:36 PM   #10
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Quote:
Originally Posted by kimura View Post
my mechanic replaced it with a rebuilt alternator, but i'm not sure earth strap is secured or not
それは純正のbmwリビルドオルタネーターでしたか、それとも一般的なリビルドオルタネーター でしたか?
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      02-24-2024, 07:41 AM   #11
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Quote:
Originally Posted by Kimura View Post
I have a strange error code related VANOS and ICM. The code is 130308 : VANOS, OUTLET: CONTROL ERROR, POSITION NOT REACHED 480007 : KL30 OVERVOLTAGE
As mentioned before remove vanos observe surface conditions, clean and install. If that helps drive till next time you get error code then replace with genuine part.

All BMW's are highly dependent to GROUND connections.
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      02-24-2024, 08:03 AM   #12
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Quote:
Originally Posted by ezaircon4jc View Post
それは純正のbmwリビルドオルタネーターでしたか、それとも一般的なリビルドオルタネーター でしたか?
I never replace original alternator or starter with rebuild ones. I take original one to shop and have them rebuild. Rebuild ones especially bosch alternators are good for a year or two and then back to sq. one.
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      02-24-2024, 02:25 PM   #13
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Quote:
Originally Posted by Conserve View Post
I never replace original alternator or starter with rebuild ones. I take original one to shop and have them rebuild. Rebuild ones especially bosch alternators are good for a year or two and then back to sq. one.
I had that experience with many an Auto Zone/Pep Boys/O'Reilly's rebuilt alternators. Fortunately, changing the alternator was about an easy 30-minute job.
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      02-24-2024, 10:53 PM   #14
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My money is on the ground connections and or Rebuilt Alternator, with your electrical and gauge cluster flickering like that it could be one or the other, or both.
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