Known resolution for the "sticky brake" problem?

huan42 · 03-21-2009, 02:11 PM

I just got my car back with this issue. They followed the TSB ( the service record showed they did). Will this fix the turbo lag as well ? Or its a totally different software ?

TIA

jtenenb · 03-22-2009, 04:19 PM

Quote:

Originally Posted by huan42

I just got my car back with this issue. They followed the TSB ( the service record showed they did). Will this fix the turbo lag as well ? Or its a totally different software ?

TIA

I asked about that, and my service advisor swore they did not have the software fix for the turbo lag issue yet despite what some have been saying on this forum. My assumption is that you'd have to tell the service advisor specifically that you want the Turbo Lab (closed wastegate) retrofit, otherwise they wont do it since you run the risk of having the ticking noise from the wastegates.

-J

Mahhvinn · 03-27-2009, 04:39 AM

Quote:

Originally Posted by tag824

Great in theory, poor in practice. It should be called brake desist.

Hunter399 · 03-28-2009, 11:43 PM

Mine only does this when its cold, when i first start it up in the morning

Tag · 03-29-2009, 01:51 PM

Got my car back on Friday and I am happy to report my sticky brake issue is finally GONE! The tech had to updated me to 32.1 to make the change and I just gotta say WOW. My previous PROGMAN ver. was 27 so I never had the lag but I have to say ver. 32.1 is amazing. My car feels faster than before and sounds better. Just an all around win win

Weaselboy · 04-01-2009, 05:58 PM

Tag> Did they just take you word for it, or did you have to leave your car overnight so they could get a cold start and see the problem? My 2007 335i is doing this, but I hate to leave my car out on their lot overnight. Thanks

goff · 04-01-2009, 08:53 PM

you need to make sure to tell them to perform the retrofit that is stated in the bulletin. i programmed my car and the sticky brake was still there, you need to retrofit the NIC feature out of the vehicle to eliminate the problem.

i updated mine yesterday with the newest software and performed the retrofit and the problem is gone.

rcusick · 04-01-2009, 09:25 PM

DELETE - realized wrong thread...

I live in hills. I brake often. Squeaking bugged me to know end. Started at 2,000 miles. Finally at 9,000 miles, demanded dealer fix. Replaced rear brake pads. 13,000 miles now and no squeaking... fingers crossed.

Tag · 04-01-2009, 09:39 PM

Quote:

Originally Posted by Weaselboy

Tag> Did they just take you word for it, or did you have to leave your car overnight so they could get a cold start and see the problem? My 2007 335i is doing this, but I hate to leave my car out on their lot overnight. Thanks

They took my word, the tech even said one of the biggest complaints they get are the sticky brakes. I had a print out of the SIB in hand (they like that, less work looking it up) and if you car falls into the date range they must perform it for you. I told them to please "deactivate the NIC function by performing the "Converter lockup clutch" retrofit, using the current Progman/ISTA P version" which is layout in the SIB.

You're most likely going to have to leave it with them for a whole day or overnight. Programming can take several hours and there is a line of cars waiting to get on so its not like you get there first thing and your right on it. Either way it's worth it, no more sticky brakes and since they had to reprogramming my whole car I got the new 32.1 which is amazing. I love my car again!

Neon01 · 04-02-2009, 02:11 PM

Wow, this has definitely happened to my car, and it's an '09. I read the entire thread through hoping that they hadn't already "fixed" the issue for the '09s so that I can get a fix to mine. Reading the SIB on bmwtis, it's much more clear exactly what's going on with the NIC. I wondered what was going on there because a handful of times I'd be sitting at a light with the brakes on, then let off the brakes and the car doesn't drift forward like every other automatic, it just sits there until I actually hit the gas. Then the engagement of the torque converter to get the car under power or the release of the brakes much be abrupt, because when it finally does go, it kind of lurches forward. With the text in the SIB I can clearly see what's going on there.

Frankly, I had no idea that it could effectively disengage the TC like that - its almost like a SMG-type tranny, really.

I think I'll visit my dealer and have them disable my NIC feature and do this. The SIB just says "E90, E92, E93 (335i) with N54 and 6HP19TU from 03/07", so I assume my '09 qualifies, correct?

Also, it mentions that the whole reason for the disengagement of the TC is to promote better fuel economy, which I can see, due to the (slight) reduction in load on the engine, has anyone actually noticed a difference who has had this procedure performed?

Weaselboy · 04-03-2009, 04:40 PM

Thanks Tag

kilogico · 09-10-2009, 05:58 AM

I drive 2005 325 E90, had the same issue. The solution: check tie rod or lower arm in the front suspension. Both have rubber bushings, and if these bushings are damaged they will cause the sticky brake issue. I replaced both parts and it is running smoothly.

aquaanox · 11-05-2009, 12:24 PM

The brake assist, aka sticky brake is a welcome feature on my 07 328 coupe which is a manual transmission, but very very very annoying on the 09 335 automatic. I have all the symptoms posted earlier, it also does weird things when backing up on a cold start. My 335i is at the dealer right now, gave them a copy of the service bulletin so we'll see what happens. Hopefully they will apply the new programming and not give me the run-around. The SA did seem helpful and didnt say anything other than its up to the shop foreman.

aquaanox · 11-07-2009, 08:46 AM

Quote:

Originally Posted by aquaanox

The brake assist, aka sticky brake is a welcome feature on my 07 328 coupe which is a manual transmission, but very very very annoying on the 09 335 automatic. I have all the symptoms posted earlier, it also does weird things when backing up on a cold start. My 335i is at the dealer right now, gave them a copy of the service bulletin so we'll see what happens. Hopefully they will apply the new programming and not give me the run-around. The SA did seem helpful and didnt say anything other than its up to the shop foreman.

Got the car updated with the SIB - the problem is gone. Said it took about 5-6 hours to reprogram the car..

Express · 11-07-2009, 10:35 PM

sticky brakes suck.

Vlad · 11-08-2009, 01:17 AM

I had stick brakes. Got a reflash, fixed it. No more trace of stuck brakes on red lights.

Christos · 12-07-2009, 05:07 PM

Quote:

Originally Posted by Vlad

I had stick brakes. Got a reflash, fixed it. No more trace of stuck brakes on red lights.

I need this TSB done to mine, seems like it's getting worse, although it's only when the car is cold, but it's annoying

pwdrskr · 12-09-2009, 02:52 PM

FYI, the TSB applies to non-XI models...or so I was told by BMW.

Anyone know if there has been a fix for XI models?

ldub · 02-08-2010, 01:54 AM

I just had my car reprogrammed 2 weeks ago and looks like the sticky brakes issue is gone while driving in 'D'.

twinship · 02-12-2010, 11:23 AM

Quote:

Originally Posted by Notorious

The problem i have isn't when braking, it's when letting off the brake from a stop, say a traffic light. When releasing the brake, often the car will hold for a moment, THEN release, sometimes with a forward "lunge" or "snap"... Thus the "sticky" refference, as if the brake pads stuck on for an extra moment.

Exactly my symptom.

I originally thought it was a trans issue... shifting momentarily into N while at a stop, and then back into D, resulting in a disconcerting lunge forward.

Now, based on this thread, I'm seeing that it's prolly the brakes grabbing and then suddenly disengaging. Same result, different cause.

When I had the car into the dealer, they couldn't replicate the prob so nothing's been done so far...

jhbodle · 02-12-2010, 12:49 PM

Quote:

Originally Posted by twinship

Exactly my symptom.

I originally thought it was a trans issue... shifting momentarily into N while at a stop, and then back into D, resulting in a disconcerting lunge forward.

Now, based on this thread, I'm seeing that it's prolly the brakes grabbing and then suddenly disengaging. Same result, different cause.

When I had the car into the dealer, they couldn't replicate the prob so nothing's been done so far...

Does it only do it when the engine's cold? Does it go away if you use 'DS' instead of 'D'?

twinship · 02-12-2010, 12:55 PM

Quote:

Originally Posted by jhbodle

Does it only do it when the engine's cold? Does it go away if you use 'DS' instead of 'D'?

I can't recall it happening after the car warms up, so I think it's a "yes" to your first question.

Not sure if it happens in DS mode or not. I'll have to pay more attention...

03-21-2009, 02:11 PM	#111
huan42 Private 2 Rep 71 Posts Drives: e90, e92 Join Date: Sep 2007 Location: Midwest - USA iTrader: (2)	I just got my car back with this issue. They followed the TSB ( the service record showed they did). Will this fix the turbo lag as well ? Or its a totally different software ? TIA
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03-28-2009, 11:43 PM	#114
Hunter399 Major General 340 Rep 8,088 Posts Drives: F90M5 Join Date: Apr 2005 Location: Houston, TX iTrader: (33)	Mine only does this when its cold, when i first start it up in the morning
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03-29-2009, 01:51 PM	#115
Tag this is the way 20643 Rep 9,101 Posts Drives: N-1 starfighter Join Date: Jan 2007 Location: Chicago iTrader: (3)	Got my car back on Friday and I am happy to report my sticky brake issue is finally GONE! The tech had to updated me to 32.1 to make the change and I just gotta say WOW. My previous PROGMAN ver. was 27 so I never had the lag but I have to say ver. 32.1 is amazing. My car feels faster than before and sounds better. Just an all around win win Attached Images
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04-01-2009, 05:58 PM	#116
Weaselboy Major 81 Rep 1,295 Posts Drives: 2024 M340i Join Date: Jun 2005 Location: California iTrader: (0)	Tag> Did they just take you word for it, or did you have to leave your car overnight so they could get a cold start and see the problem? My 2007 335i is doing this, but I hate to leave my car out on their lot overnight. Thanks
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04-01-2009, 08:53 PM	#117
goff ///M Tech 6 Rep 90 Posts Drives: E90 M3 Join Date: May 2008 Location: NY iTrader: (2)	you need to make sure to tell them to perform the retrofit that is stated in the bulletin. i programmed my car and the sticky brake was still there, you need to retrofit the NIC feature out of the vehicle to eliminate the problem. i updated mine yesterday with the newest software and performed the retrofit and the problem is gone.
	Appreciate 0 Quote

04-01-2009, 09:25 PM	#118
rcusick Private First Class 12 Rep 133 Posts Drives: BMW 335 Join Date: Jan 2009 Location: Los Angeles iTrader: (0)	DELETE - realized wrong thread... I live in hills. I brake often. Squeaking bugged me to know end. Started at 2,000 miles. Finally at 9,000 miles, demanded dealer fix. Replaced rear brake pads. 13,000 miles now and no squeaking... fingers crossed.
	Appreciate 0 Quote

04-02-2009, 02:11 PM	#120
Neon01 BMW Nut 50 Rep 452 Posts Drives: 12 X5 35i Join Date: Jun 2007 Location: Bel Air, MD iTrader: (8) Garage List 2004 Honda S2000 [0.00] 2005 BMW M3 - Retired [0.00] 2009 BMW M3 - Retired [0.00]	Wow, this has definitely happened to my car, and it's an '09. I read the entire thread through hoping that they hadn't already "fixed" the issue for the '09s so that I can get a fix to mine. Reading the SIB on bmwtis, it's much more clear exactly what's going on with the NIC. I wondered what was going on there because a handful of times I'd be sitting at a light with the brakes on, then let off the brakes and the car doesn't drift forward like every other automatic, it just sits there until I actually hit the gas. Then the engagement of the torque converter to get the car under power or the release of the brakes much be abrupt, because when it finally does go, it kind of lurches forward. With the text in the SIB I can clearly see what's going on there. Frankly, I had no idea that it could effectively disengage the TC like that - its almost like a SMG-type tranny, really. I think I'll visit my dealer and have them disable my NIC feature and do this. The SIB just says "E90, E92, E93 (335i) with N54 and 6HP19TU from 03/07", so I assume my '09 qualifies, correct? Also, it mentions that the whole reason for the disengagement of the TC is to promote better fuel economy, which I can see, due to the (slight) reduction in load on the engine, has anyone actually noticed a difference who has had this procedure performed? __________________ 12 X5 xDrive35i \| Platinum Gray \| Oyster \| Burl Walnut \| Premium \| Convenience \| 3rd Row \| Apps 13 Audi S4 \| Misano Red \| Black 04 S2000 \| Berlina Black \| Black
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04-03-2009, 04:40 PM	#121
Weaselboy Major 81 Rep 1,295 Posts Drives: 2024 M340i Join Date: Jun 2005 Location: California iTrader: (0)	Thanks Tag
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09-10-2009, 05:58 AM	#122
kilogico Registered 0 Rep 2 Posts Drives: 325i Join Date: Sep 2009 Location: Jakarta iTrader: (0)	I drive 2005 325 E90, had the same issue. The solution: check tie rod or lower arm in the front suspension. Both have rubber bushings, and if these bushings are damaged they will cause the sticky brake issue. I replaced both parts and it is running smoothly.
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11-05-2009, 12:24 PM	#123
aquaanox First Lieutenant 29 Rep 307 Posts Drives: e92 328, e90 335 Join Date: Jun 2007 Location: rockville md iTrader: (6)	The brake assist, aka sticky brake is a welcome feature on my 07 328 coupe which is a manual transmission, but very very very annoying on the 09 335 automatic. I have all the symptoms posted earlier, it also does weird things when backing up on a cold start. My 335i is at the dealer right now, gave them a copy of the service bulletin so we'll see what happens. Hopefully they will apply the new programming and not give me the run-around. The SA did seem helpful and didnt say anything other than its up to the shop foreman.
	Appreciate 0 Quote

11-07-2009, 10:35 PM	#125
Express Major General 391 Rep 8,688 Posts Drives: 06 330i Join Date: Dec 2008 Location: The Promise Land iTrader: (17) Garage List 2006 BMW 330i [8.30]	sticky brakes suck.
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11-08-2009, 01:17 AM	#126
Vlad hai 19 Rep 153 Posts Drives: Porsche Macan S Join Date: Dec 2007 Location: FL iTrader: (0)	I had stick brakes. Got a reflash, fixed it. No more trace of stuck brakes on red lights.
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12-09-2009, 02:52 PM	#128
pwdrskr Private First Class 14 Rep 160 Posts Drives: 2013 Audi allroad Join Date: Apr 2008 Location: Seattle, WA iTrader: (1)	FYI, the TSB applies to non-XI models...or so I was told by BMW. Anyone know if there has been a fix for XI models?
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02-08-2010, 01:54 AM	#129
ldub New Member 2 Rep 8 Posts Drives: 2008 335i Join Date: Apr 2008 Location: Bay Area iTrader: (0)	I just had my car reprogrammed 2 weeks ago and looks like the sticky brakes issue is gone while driving in 'D'.
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