Wastegate Advice Needed

Bubbles · 07-25-2008, 11:24 PM

Quote:

Originally Posted by BMWfan07

It's done! One week in the shop and finally have a rattkle free car. So far, so good. There is no rattle and the turbo lag I sensed before seems a bit less. I was angry at how long it took, but after speaking with the very experienced tech, I was less upset. He told me how much crap he had to remove from the engine compartment to access the turbos, including the damn radiator. He was very careful and said he adjusted the newly designed wastegate actuators to the T. Yes, he said the new actuators are a different design than the old ones.

Did I mention my car is rattle free?

Good to hear it worked out.

McLuVan · 07-26-2008, 03:28 AM

fricking
lets all just tell bmw to give us all a single turbo kit with a t51r spl
problem solved
no rattle

Swoop · 07-26-2008, 03:41 PM

Question: what happens if your waste gates are faulty? I just started my car and started to drive off...got a CEL, one tailpipe was smoking, car shakes like an addict who needs their fix, and sounds like a diesel exhaust. (and smells like a boet exhaust in water). Could this be the issue? (thanks Spool for the advice btw =))

iScream · 07-27-2008, 02:11 AM

Quote:

Originally Posted by BMWfan07

It's done! One week in the shop and finally have a rattkle free car. So far, so good. There is no rattle and the turbo lag I sensed before seems a bit less. I was angry at how long it took, but after speaking with the very experienced tech, I was less upset. He told me how much crap he had to remove from the engine compartment to access the turbos, including the damn radiator. He was very careful and said he adjusted the newly designed wastegate actuators to the T. Yes, he said the new actuators are a different design than the old ones.

Did I mention my car is rattle free?

Did you ever have a pre-29.2 car, and if so, can you say if the lag is back to the pre-29.2 levels?

Also, can someone who is still experiencing this issue post a clear video or audio clip of the sound? I do have a fairly obnoxious fluttering sound, almost like a backfiring lawnmower, when I decelerate in 1st gear. I had always thought it was normal, and I am now wondering if it is somehow related to the lag...

Edit: for frame of reference, my noise is much like the noise you hear at 1:19 of this video:

Yes, I know that is not a stock exhaust, but that is basically what mine sounds like on deceleration.

BMWfan07 · 07-27-2008, 09:53 AM

Quote:

Originally Posted by iScream

Did you ever have a pre-29.2 car, and if so, can you say if the lag is back to the pre-29.2 levels?

Also, can someone who is still experiencing this issue post a clear video or audio clip of the sound? I do have a fairly obnoxious fluttering sound, almost like a backfiring lawnmower, when I decelerate in 1st gear. I had always thought it was normal, and I am now wondering if it is somehow related to the lag...

Edit: for frame of reference, my noise is much like the noise you hear at 1:19 of this video:

Yes, I know that is not a stock exhaust, but that is basically what mine sounds like on deceleration.

I am fairly sure I have the latest version of software, whatever that is now, because before they replaced the wastegate actuators, they did a software update that took several hours, that was about a month ago.

As for lag, I am convinced that I have less lag now than before they replaced the wastegate actuators. The car is rattle free and it runs good, sounds good, and I notice the lag I was experiencing between low gears has improved. The car is running tight!

jadeddjay · 07-28-2008, 03:55 PM

my dealer sucks.

so i ran over a rock that dented my exhaust and at the same time, my actuators were going bad. so i brought my car to the dealer to have them fix the actuators and get me a quote on the dented exhaust

they blamed it on the dented exhaust, quoted me more than 3k to replace the exhaust. well i had an aftermarket waiting to be installed in my garage, so i did that this weekend

no comes my predicament... will they deny my warranty because of an aftermarket exhaust(catback, removing the secondary cats)?

07-26-2008, 03:28 AM	#24
McLuVan Lieutenant General 312 Rep 13,094 Posts Drives: ///M3 Join Date: Jan 2008 Location: Socal~818~ iTrader: (1)	fricking lets all just tell bmw to give us all a single turbo kit with a t51r spl problem solved no rattle __________________
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07-26-2008, 03:41 PM	#25
Swoop Resident Noob 138 Rep 1,911 Posts Drives: You Crazy w/ My Rear Fogs Join Date: Mar 2007 Location: Manhattan Beach, California iTrader: (6) Garage List 2007 335i [0.00] 2004 Acura TSX [0.00]	Question: what happens if your waste gates are faulty? I just started my car and started to drive off...got a CEL, one tailpipe was smoking, car shakes like an addict who needs their fix, and sounds like a diesel exhaust. (and smells like a boet exhaust in water). Could this be the issue? (thanks Spool for the advice btw =)) __________________ A/W 335i e90 l Sirius l M6 Wheels l M5 Bumper l Eibachs l 20% Tint l CPE Exhaust & Standback l BLK Matte Trim l Xenon Interiors l Lux 4.0 l 8000k D1S l MTEC H7/H11s l Invisibulbs l BLK Matte Grill l Blacklines l Alum Pedals l Splt Armrest l Rear Fogs l RBT l K&N
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07-28-2008, 03:55 PM	#28
jadeddjay Major 118 Rep 1,441 Posts Drives: e92 335i, f10 m5 comp Join Date: Oct 2005 Location: jackson, ms iTrader: (4) Garage List 2007 e92 335i [0.00]	my dealer sucks. so i ran over a rock that dented my exhaust and at the same time, my actuators were going bad. so i brought my car to the dealer to have them fix the actuators and get me a quote on the dented exhaust they blamed it on the dented exhaust, quoted me more than 3k to replace the exhaust. well i had an aftermarket waiting to be installed in my garage, so i did that this weekend no comes my predicament... will they deny my warranty because of an aftermarket exhaust(catback, removing the secondary cats)?
	Appreciate 0 Quote