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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 07-16-2013, 06:36 AM
JaimeLyn JaimeLyn is offline
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Low RPMs and starting to buck

I have a 2008 335xi Manual with 50k on it, I just bought it used. When I am in the higher gears, 4th, 5th and 6th and at lower RPMs the car seems to buck, almost like the fuel isn't getting to the engine... Not sure, but I'm taking it to the dealership today, just wanted to see what you guys may think.
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  #2  
Old 07-16-2013, 08:01 AM
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floydarogers floydarogers is offline
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Quote:
Originally Posted by JaimeLyn View Post
I have a 2008 335xi Manual with 50k on it, I just bought it used. When I am in the higher gears, 4th, 5th and 6th and at lower RPMs the car seems to buck, almost like the fuel isn't getting to the engine... Not sure, but I'm taking it to the dealership today, just wanted to see what you guys may think.
Sounds like you're "lugging" it. Accelerating when rpms are lower than 1500 causes this. Change down to keep the revs up.
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Old 07-16-2013, 08:14 AM
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CALWATERBOY CALWATERBOY is offline
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Quote:
Originally Posted by JaimeLyn View Post
I have a 2008 335xi Manual with 50k on it, I just bought it used. When I am in the higher gears, 4th, 5th and 6th and at lower RPMs the car seems to buck, almost like the fuel isn't getting to the engine... Not sure, but I'm taking it to the dealership today, just wanted to see what you guys may think.

Gosh-a-mighty, man! You're outta warranty, but that wouldn't help with THIS....why not DIY?

'Course it couldn't be plugs, 'cause you did that 10k mi back. Didn't you?

Well, now. Could be a coil. But how would you know? Read codes. If a coil, swap with a good cyl & observe.
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Old 07-16-2013, 08:15 AM
JaimeLyn JaimeLyn is offline
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I do have 24,000 powertrain warranty What should I tell them to look at? The Spark pplugs and coil? Could it be anything else?
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Old 07-16-2013, 08:24 AM
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CALWATERBOY CALWATERBOY is offline
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I do have 24,000 powertrain warranty What should I tell them to look at? The Spark pplugs and coil? Could it be anything else?

Well, should your driveshaft self destruct, no problem.

But what I mentioned: ain't covered.

You're about due for shell of walnut. $600 and up at the stealer, you're way ahead doing it yourself. I am a believer in knowing your ride! DIY cost is, what, $250? Assuming you have compressor and shop vac already, items no shadetree pilot should be without.
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Old 07-16-2013, 09:03 AM
fdriller9 fdriller9 is online now
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Originally Posted by CALWATERBOY View Post
Well, should your driveshaft self destruct, no problem.

But what I mentioned: ain't covered.

You're about due for shell of walnut. $600 and up at the stealer, you're way ahead doing it yourself. I am a believer in knowing your ride! DIY cost is, what, $250? Assuming you have compressor and shop vac already, items no shadetree pilot should be without.
Doesn't have to be done at the dealer. Indy shops do this for $400 and under. I know of a shop that does it for $349.

I would find a good indy shop in your area. Dealer will always be the most expensive option and not always the best. They follow what ISTA test plans call for and not much else. If the computer doesn't know what's wrong, the dealer normally has no idea what to do after that.

I'm thinking it's injectors, fuel pump, or a vacuum issue. An engine with carbon build up at 50k should not be having these issues.
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Last edited by fdriller9; 07-16-2013 at 09:09 AM.
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Old 07-16-2013, 09:10 AM
JaimeLyn JaimeLyn is offline
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Thank you, I appreciate your response!
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Old 07-16-2013, 09:13 AM
fdriller9 fdriller9 is online now
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Thank you, I appreciate your response!
I just noticed your in NJ. There are tons of reputable indys in the area.

Shade Tree in Morristown, AutoCouture in Hillsdale, AK Motorwork in Hillbourough, Helix in Philly, PA.

Just a few off the top of my head.
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Old 07-16-2013, 09:15 AM
JaimeLyn JaimeLyn is offline
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Thumbs up

Thank you.... Now that I have some ideas what it could be, I'll tell the dealer, since I bought it just on 7/3, I have a dealer warranty for everything for 30-days... Hopefully I won't have to go to one of those INDY shops anytime soon!
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