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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 11-11-2013, 04:58 PM
Knightmare Knightmare is offline
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Location: Knoxville, TN
 
Join Date: Feb 2013
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Mein Auto: 2007 BMW 335i
335i turbo related issue

Alright so I've found out that my wastegate actuator is going out in one of my turbos. My biggest concern is how long can I expect my turbos to last before something happens and how bad will it be when something does blow? Will there be even more damage done immediately on the road? Another thing is that I've read up on going to the single turbo setup on the 335i but is going from twin to single setup worth the extra money? Extra money being the difference in price of buying oem parts to replace my stock turbos compared to buying a single turbo kit from someone like Vishnu, RB, or someone along those lines. Oh and on a side note is that I'm having a local performance shop install the kit whether it comes down to all OEM parts or going aftermarket single turbo set up because I don't have access to tools and room to work on my car here at college. Car has ~109k miles and I feel like once I fix this and other maintenance parts it'll go for a long time after. Thanks for any input!
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  #2  
Old 11-11-2013, 05:05 PM
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bighorns bighorns is offline
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RB sells an upgraded twin turbo kit that replaces the stock turbos. Don't know what is involved in the install, but have heard great things about them. BMW also has an extended warranty on the turbos for wastegate issues. (8 yrs./82,000 miles)
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Old 11-11-2013, 05:24 PM
Knightmare Knightmare is offline
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Would doing the RB twin setup be better off in the long run? Or will going to the single setup be since they're almost identical in price with the RB twins being just under Vishnu's single setup.
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Old 11-11-2013, 07:14 PM
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bighorns bighorns is offline
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I think it depends what you want. A big single turbo takes longer to spool up, so it tends to have more lag. I would see if you qualify for a stock turbo replacement under warranty first.
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Old 11-11-2013, 08:48 PM
Knightmare Knightmare is offline
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Thanks for the advice, I will check out the warranty option and see where that lands me.
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  #6  
Old 11-12-2013, 08:51 AM
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fun2drive fun2drive is offline
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Wastegate rattle has nothing to do with turbo life, repeat nothing. Wstegate just controls the amount of boost commanded. Replacing the actuator is not easy but betting there is nothing wrong with your turbos. BMW will under the 8 year 82K mile extended warranty replace the wastegates and most likely the turbos since they come as an assembly.
No need to go to Rob's set up unless you want to. Just be sure you allow the oil to get warm meaning over 160F before beating on it...
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Old 11-12-2013, 09:20 AM
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CALWATERBOY CALWATERBOY is offline
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Quote:
Originally Posted by Knightmare View Post
Alright so I've found out that my wastegate actuator is going out in one of my turbos. My biggest concern is how long can I expect my turbos to last before something happens and how bad will it be when something does blow? Will there be even more damage done immediately on the road? Another thing is that I've read up on going to the single turbo setup on the 335i but is going from twin to single setup worth the extra money? Extra money being the difference in price of buying oem parts to replace my stock turbos compared to buying a single turbo kit from someone like Vishnu, RB, or someone along those lines. Oh and on a side note is that I'm having a local performance shop install the kit whether it comes down to all OEM parts or going aftermarket single turbo set up because I don't have access to tools and room to work on my car here at college. Car has ~109k miles and I feel like once I fix this and other maintenance parts it'll go for a long time after. Thanks for any input!

Going out? How do you know? Diagnostic procedure & data, please.

Try adjusting 'em first!
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Old 11-13-2013, 02:37 PM
Knightmare Knightmare is offline
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Location: Knoxville, TN
 
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Mein Auto: 2007 BMW 335i
Quote:
Originally Posted by CALWATERBOY View Post
Going out? How do you know? Diagnostic procedure & data, please.

Try adjusting 'em first!
I've only read up on different threads on here and compared my rattling issue to others saying the same. I don't have diagnostic procedures and data so I can't be 100% sure. If I do adjust them how well and how long will that fix the actuator problem? I've noticed rattling due to (from what I've read) the actuator arm becoming loose and I've gone through more oil recently getting down to Minimum level well before a service is due.
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Old 11-13-2013, 03:07 PM
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need4speed need4speed is offline
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Quote:
Originally Posted by bighorns View Post
i think it depends what you want. A big single turbo takes longer to spool up, so it tends to have more lag. I would see if you qualify for a stock turbo replacement under warranty first.



+1. N4s
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