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E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

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  #1  
Old 06-13-2013, 01:10 PM
335ViGuy 335ViGuy is offline
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08 335i bad vacuum solenoid

So I got a yellow engine light in my car when I stepped on it to pass a car. I took it to the dealer and they said it was a bad vacuum solenoid to the turbo. I was wondering how this affects performance on my car having a bad vacuum solenoid. For a while I felt my car wasn't as fast as I remembered it being. Thanks for the feed back


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  #2  
Old 06-13-2013, 01:22 PM
335ViGuy 335ViGuy is offline
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08 335i bad vacuum solenoid

Just got a call from my SA at BMW he said the waste gates where out of adjustment how does that also effect my performance?


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Old 06-13-2013, 01:30 PM
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CALWATERBOY CALWATERBOY is online now
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Originally Posted by 335ViGuy View Post
So I got a yellow engine light in my car when I stepped on it to pass a car. I took it to the dealer and they said it was a bad vacuum solenoid to the turbo. I was wondering how this affects performance on my car having a bad vacuum solenoid. For a while I felt my car wasn't as fast as I remembered it being.

Tech means the waste gates, operated by vacuum.

After work reading
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Old 06-13-2013, 01:30 PM
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thekurgan thekurgan is offline
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Originally Posted by 335ViGuy View Post
Just got a call from my SA at BMW he said the waste gates where out of adjustment how does that also effect my performance?


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Wastegate closed = turbo effective
Wastegate open = turbo not effective
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Old 06-16-2013, 09:15 PM
335ViGuy 335ViGuy is offline
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08 335i bad vacuum solenoid

Hey thanks for the responses so I got my car back from the dealer. They fixed the waste gate and I was on my way. As I am driving home on the freeway I step on the gas a Lil bit to go around a car and the yellow engine light comes on again. Stop get some gas and when I restart the car no engine light. I'm getting on the freeway to go back to the dealer and want to see if the light comes on again so I give some gas to speed up I don't step on it hard but when it gets to 3500rpm the turns on. I get to the dealer and he said he has seen cars come back that had the same problem with the waste gates had to have the turbos replaced. What are your thoughts or experience with something like this.


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Old 06-16-2013, 10:13 PM
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CALWATERBOY CALWATERBOY is online now
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Originally Posted by 335ViGuy View Post
What are your thoughts or experience with something like this.

Talk's cheap. So inexpensive that it's worth nothing at all....

Ask for the GT1 code printout - post here!
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Old 06-16-2013, 10:33 PM
335ViGuy 335ViGuy is offline
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08 335i bad vacuum solenoid

Don't know what you mean?


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Old 06-16-2013, 10:58 PM
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Don't know what you mean?


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OK, a GT1 code scanner is what dealers use to diagnose your ride. We poor shadetree bumpkins use a plain-Jane Bavarian Technic....hey what do we know?

Ask for a printout of your ride's code scan....
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Old 06-17-2013, 10:38 AM
335ViGuy 335ViGuy is offline
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08 335i bad vacuum solenoid

Haha ya I will ask for the print out thanks


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Old 06-18-2013, 06:56 PM
335ViGuy 335ViGuy is offline
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08 335i bad vacuum solenoid

The verdict came in my SA called and said they are putting new turbos in. Is there any kind of break in period for new turbos?


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Old 06-18-2013, 07:57 PM
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galahad05 galahad05 is online now
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Wow....

I've recently been getting (occasional) 30ff codes myself. Underboost.
Hope it's a stupid boost leak in the hoses from when the techs put the engine bay back together for the suspension fix. The problem occurred I think the day after I got the car back.

As for your turbos, I'd say simply follow good turbo-long-life guidelines. That is, don't jump on it while the engine oil temperature is below 160F. To be safe, wait until 180F.
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Old 06-18-2013, 08:35 PM
BB_cuda BB_cuda is offline
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How do you know the engine oil temp? OBD reader?
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Old 06-18-2013, 10:41 PM
335ViGuy 335ViGuy is offline
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08 335i bad vacuum solenoid

That's a bummer to hear hope it's nothing big. I am glad my car is still under warranty and they are replacing the turbos. Ya I always let the oil warm up to 200 and don't rev over 3k rpms until 200.
The only temp gauge there is on the car is for the oil temp not engine temp.


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Old 06-19-2013, 05:25 AM
Watchme Watchme is offline
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How do you know the engine oil temp? OBD reader?
seriously?
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