Unreasonable Expectations or Turbo Lag?

hyhoo0 · 04-20-2009, 08:14 PM

I recently bought a CPO 2007 335i manual transmission. I owned a 2000 mustang GT before hand so I'm used to NA V8 power. However what I experience in my 335i i can only described as turbo lag. In any gear at any rpm I slam on the gas and it starts to accelerate then about a second later the turbos seem to kick in and the car accelerates faster. I have read extensively on these forums about the know turbo lag problem so I brought the car in last week and asked them to update my car however it feels exactly the same as it did before I brought it in. I thought the whole point of the twin turbo setup was to eliminate turbo lag yet I definitely feel a power lag between when I slam on the gas and when full power seems to be available. Is this to be expected? Do I have unreasonable expectations due to my previous car or do you think my car is suffering from the turbo lag issue?

Thanks in Advance!

SoCalTech · 04-20-2009, 09:36 PM

Did you just ask for an update? Or did you tell them that you felt lag, and wanted the programming lag fix?

hyhoo0 · 04-20-2009, 10:09 PM

I told them I felt the turbo lag I asked for the update to solve the problem and the SA and invoice says that the update was given to me.

From the service invoice.
"C** C/S THERE IS EXCESSIVE TURBO LAG AT LOW SPEEDS
CAUSE: SIB# 11-13-07
6100801 PROGRAMMING/ENCODING CONTROL UNITS
FC: 1165053900
16388 SIB 11 13 07 WP PER SIB 11 13 07 REPROGRAM COMPLETE VEHICLE AND RETEST"

Does the lag I described sound normal?

SoCalTech · 04-20-2009, 10:42 PM

Doesn't say whether or not they did the actual turbo lag fix along with the programming. I would call back and ask. What's your production date?

04-20-2009, 08:14 PM	#1
hyhoo0 New Member 0 Rep 19 Posts Drives: 2018 F80 M3 YMB 6MT Join Date: Apr 2009 Location: Vienna VA iTrader: (2)	Unreasonable Expectations or Turbo Lag? I recently bought a CPO 2007 335i manual transmission. I owned a 2000 mustang GT before hand so I'm used to NA V8 power. However what I experience in my 335i i can only described as turbo lag. In any gear at any rpm I slam on the gas and it starts to accelerate then about a second later the turbos seem to kick in and the car accelerates faster. I have read extensively on these forums about the know turbo lag problem so I brought the car in last week and asked them to update my car however it feels exactly the same as it did before I brought it in. I thought the whole point of the twin turbo setup was to eliminate turbo lag yet I definitely feel a power lag between when I slam on the gas and when full power seems to be available. Is this to be expected? Do I have unreasonable expectations due to my previous car or do you think my car is suffering from the turbo lag issue? Thanks in Advance!
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04-20-2009, 09:36 PM	#2
SoCalTech Captain 24 Rep 648 Posts Drives: Not a BMW yet... Join Date: Oct 2008 Location: Redondo Beach, Ca iTrader: (0)	Did you just ask for an update? Or did you tell them that you felt lag, and wanted the programming lag fix?
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04-20-2009, 10:09 PM	#3
hyhoo0 New Member 0 Rep 19 Posts Drives: 2018 F80 M3 YMB 6MT Join Date: Apr 2009 Location: Vienna VA iTrader: (2)	I told them I felt the turbo lag I asked for the update to solve the problem and the SA and invoice says that the update was given to me. From the service invoice. "C** C/S THERE IS EXCESSIVE TURBO LAG AT LOW SPEEDS CAUSE: SIB# 11-13-07 6100801 PROGRAMMING/ENCODING CONTROL UNITS FC: 1165053900 16388 SIB 11 13 07 WP PER SIB 11 13 07 REPROGRAM COMPLETE VEHICLE AND RETEST" Does the lag I described sound normal?
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04-20-2009, 10:42 PM	#4
SoCalTech Captain 24 Rep 648 Posts Drives: Not a BMW yet... Join Date: Oct 2008 Location: Redondo Beach, Ca iTrader: (0)	Doesn't say whether or not they did the actual turbo lag fix along with the programming. I would call back and ask. What's your production date?
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