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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 01-18-2014, 11:56 AM
waterskidude waterskidude is offline
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DCS/ABS module swap problem

The ABS, DSC, and brake lights came on in my 08 335i. My local guy pulled the codes which were:5DF0 DSC: Hydraulic unit: pump motor
5DF1 DSC: Hydraulic unit: pump motor connector faulty.

I bought a used unit on Ebay had it installed and programmed and came up with the same fault codes. Is there any possibility that it is something other than the pump unit/electrical module that could cause this problem or am I just that unlucky that I bought a used unit with the same problem?

A new unit at BMW is close to $3000. so I'm looking for other options. Also, does anybody know if this unit can be sent out for repair?

Thanks
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  #2  
Old 01-18-2014, 12:53 PM
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Quote:
Originally Posted by waterskidude View Post
The ABS, DSC, and brake lights came on in my 08 335i. My local guy pulled the codes which were:5DF0 DSC: Hydraulic unit: pump motor
5DF1 DSC: Hydraulic unit: pump motor connector faulty.

I bought a used unit on Ebay had it installed and programmed and came up with the same fault codes. Is there any possibility that it is something other than the pump unit/electrical module that could cause this problem or am I just that unlucky that I bought a used unit with the same problem?

A new unit at BMW is close to $3000. so I'm looking for other options. Also, does anybody know if this unit can be sent out for repair?

Thanks
my 08 car did the same.... $3000 + labour was my only option... then sold the car

was told Post 09 have better abs/dsc unit .... pre 09 units cannot be repaired.... post 09 can be re-built for $400

Lesson I learn : Post 09 E9x is a lot more reliable
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  #3  
Old 01-18-2014, 02:37 PM
fdriller9 fdriller9 is offline
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Who and how was the programming done?
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  #4  
Old 01-18-2014, 04:14 PM
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Mine done by independent bmw ... They found faulty module, replace module then found it only pump to three wheels, the pump replaced... All up $4000

Pretty gutted after that....

Sold the car after and never looked back to buying pre 09 e9x
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  #5  
Old 01-19-2014, 06:29 AM
waterskidude waterskidude is offline
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Originally Posted by fdriller9 View Post
Who and how was the programming done?
I was done at an Indy shop. I believe he has the autologic diagnostic tool for BMW. Is it possible that this is a problem?

Looking at other alternatives, I also found that ecutesting.com may be able to repair my original unit and include a lifetime guarantee. They don't re-code the unit just repair it so this may also be a good choice. Anybody have any experience with them?
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  #6  
Old 01-19-2014, 07:06 AM
roadkillrob roadkillrob is offline
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I have read a few threads where people have had good luck with ecutesting.com, only issue is they are in the UK, so your car will be down for a while, not sure how fast their turn around is, but it get's a bit pricey to ship it quick to the UK (although still way cheaper than a 3000 replacement)
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  #7  
Old 01-19-2014, 10:44 AM
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When mine was down i check with them ... It may take 3-4 weeks due to shipping from here
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  #8  
Old 01-19-2014, 10:45 AM
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There is a local who can re build for $400 but only post 09 model cars
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  #9  
Old 01-19-2014, 01:45 PM
waterskidude waterskidude is offline
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Do you have name of the local? I will drop them an email.

Thanks.
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  #10  
Old 01-19-2014, 03:16 PM
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http://www.absrepair.com.au/
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  #11  
Old 01-19-2014, 04:12 PM
ptrcd003 ptrcd003 is offline
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LOL I'm sure he meant local to Canada, not Australia.
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  #12  
Old 01-19-2014, 04:14 PM
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haha

how would I know
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  #13  
Old 01-19-2014, 06:48 PM
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fun2drive fun2drive is offline
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More than likely your issue is the Bosch electric motor brushes are not making contact.
You can just swap the module over from the existing unit to the new unit rather than reprogramming the new unit itself. It is pretty easy to do.
There is a DIY from England where a user repaired his ABS modulator for his R1200. Same Bosch system as out cars just slightly different configuration but the same problem, brushes not making contact with the slip ring because the brush material jams the brush holder.
I replaced my ABS modulator from BMW in MN which cost north of 900 bucks shipped and just pulled my old one out, swapped my module over to the new unit, installed it and cleared the codes, done.
I then pulled the Bosch motor off and cut the sides out where the brushes sit, cleaned the brushes and holder (2 each) and reinstalled the motor into the essentic pump. I now have a spare and yes I tested my motor before sticking it back in the box my new one came in and works just fine. Also these ABS modulators are much improved over the 06 version and earlier with solenoids which can fail but the motor is where all the problems seen to be. The new system is much easier to bleed as it flows through the ABS unit and cleans old fluid out.
Maybe this will help some
http://www.e90post.com/forums/showthread.php?t=600491
I just used 3coupe4me's write-up and also here is the write-up on the Bosch motor repair
http://www.i-bmw.com/showthread.php?t=41122&page=2
Hope this helps
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  #14  
Old 01-20-2014, 07:41 AM
hondo402000 hondo402000 is offline
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Quote:
Originally Posted by waterskidude View Post
The ABS, DSC, and brake lights came on in my 08 335i. My local guy pulled the codes which were:5DF0 DSC: Hydraulic unit: pump motor
5DF1 DSC: Hydraulic unit: pump motor connector faulty.

I bought a used unit on Ebay had it installed and programmed and came up with the same fault codes. Is there any possibility that it is something other than the pump unit/electrical module that could cause this problem or am I just that unlucky that I bought a used unit with the same problem?

A new unit at BMW is close to $3000. so I'm looking for other options. Also, does anybody know if this unit can be sent out for repair?

Thanks
sounds kind of high, I just had my 07 335I done( under the extended warranty) for 1800.00, cost me only a 100
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  #15  
Old 01-20-2014, 08:40 AM
fdriller9 fdriller9 is offline
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Quote:
Originally Posted by waterskidude View Post
I was done at an Indy shop. I believe he has the autologic diagnostic tool for BMW. Is it possible that this is a problem?

Looking at other alternatives, I also found that ecutesting.com may be able to repair my original unit and include a lifetime guarantee. They don't re-code the unit just repair it so this may also be a good choice. Anybody have any experience with them?
It could be. New firmware and your vehicles vin needs to be flashed to the new unit. I'm not sure what the autologic tool does.

I do know you can use WinKFP to flash the necessary info to the new module.

If you have the old DSC hydro unit, you can separate the control unit from the pump and use the old control unit. However, this may not work for you because you have 5DF1 which normally indicates a bad control unit.

Also check the harness and connector for frayed wires or corroded pins.
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Last edited by fdriller9; 01-20-2014 at 08:41 AM.
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  #16  
Old 01-20-2014, 08:44 AM
fdriller9 fdriller9 is offline
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Btw if you do end up having to buy new unit, don't buy it from the dealer.

This is for a 2008 E90 335i Sedan, US spec.
http://www.ecstuning.com/Search/Site...84811/ES62683/
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  #17  
Old 01-20-2014, 02:20 PM
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fun2drive fun2drive is offline
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The new unit I bought from the dealer in MN was 968 bucks, the prices quoted by ESC at 2106 bucks nor the dealer price which is ridiculously high 3K bucks.
I would be searching out other dealers selling these units for a good price.

Does your unit need programming?

All depends, on mine I swapped out the electronic module for the old module which is working just fine and no codes after resetting them.

The units I have seen and read about failing all seen to show the same codes and all it takes is the motor to stop meeting the correct rpm limit to set them off. Have not seen the actual electronic modules to fail nor the ABS distribution unit either...

I noticed the OP has not come back so not sure what is up with that.
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  #18  
Old 01-20-2014, 02:22 PM
hondo402000 hondo402000 is offline
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Originally Posted by fun2drive View Post
The new unit I bought from the dealer in MN was 968 bucks, the prices quoted by ESC at 2106 bucks nor the dealer price which is ridiculously high 3K bucks.
I would be searching out other dealers selling these units for a good price.

Does your unit need programming?

All depends, on mine I swapped out the electronic module for the old module which is working just fine and no codes after resetting them.

The units I have seen and read about failing all seen to show the same codes and all it takes is the motor to stop meeting the correct rpm limit to set them off. Have not seen the actual electronic modules to fail nor the ABS distribution unit either...

I noticed the OP has not come back so not sure what is up with that.
OP died from sticker shock
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Old 01-29-2014, 05:34 AM
waterskidude waterskidude is offline
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The 07 model has a different module and is considerably less expensive. IMy car's build date is 12/07, if it was 11/07, I would need the same unit as you. 1 month later the price jumps $1,200. Go figure.

Quote:
Originally Posted by hondo402000 View Post
sounds kind of high, I just had my 07 335I done( under the extended warranty) for 1800.00, cost me only a 100
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Old 01-29-2014, 05:37 AM
waterskidude waterskidude is offline
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I'm taking my car to BMW to get them to program the used module. I tried my original module with the used pump that I bought and that didn't work so I'm pretty sure the module is a problem. My Indy guy can't recode a used unit only a new one.


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Originally Posted by hondo402000 View Post
OP died from sticker shock
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  #21  
Old 01-29-2014, 05:39 AM
waterskidude waterskidude is offline
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That's a way better price, still a lot of money though, thanks!

Quote:
Originally Posted by fdriller9 View Post
Btw if you do end up having to buy new unit, don't buy it from the dealer.

This is for a 2008 E90 335i Sedan, US spec.
http://www.ecstuning.com/Search/Site...84811/ES62683/
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  #22  
Old 01-29-2014, 06:52 AM
fdriller9 fdriller9 is offline
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Originally Posted by waterskidude View Post
I'm taking my car to BMW to get them to program the used module. I tried my original module with the used pump that I bought and that didn't work so I'm pretty sure the module is a problem. My Indy guy can't recode a used unit only a new one.
If the dealer cannot program the module for you, you can try looking for a local coder who can do it for you. The software that these local coders use is able to do a ton more custom coding than what the dealership can.

www.bmwcoding.com

Check the regional section

Most of the time, shops/dealerships don't like to mess with used parts. Especially components for the braking system since it has the potential for liability.

I wouldn't be surprised if the dealership turns you away.
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  #23  
Old 02-25-2014, 04:59 PM
waterskidude waterskidude is offline
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In the end, I gave up on the used module as BMW also told me it was faulty. I did send my original unit to modulemasters.com where Tyler told me he could fix it. I got it back today, installed it, and it works perfectly. Basically, the brushes on the motor had worn off. They rebuilt the brushes with ones that will last way longer than the original ones and are guaranteeing it for 5 years. When I went to BMW, (in Canada) they wanted $3,800 for the part alone and that came with attitude. Module masters cost me $100 with incredible service. The choice is obvious for anybody else who has this problem.

Thanks to everybody who commented.
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  #24  
Old 02-25-2014, 06:59 PM
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fun2drive fun2drive is offline
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Virtually all Bosch ABS units produced since late 2006 suffer from Bosch electric motor brushes getting gummed up by the material (graphite) which causes one if the brushes to stick or both to not be close enough to provide sufficient voltage thus throwing a code. I have posted this countless times in this forum and two others. I rebuilt mine after replacing it and now I have a perfectly functioning backup for no cost what so ever. I also have posted
http://www.modulemaster.com/en/index.php
Modulemaster as the place to get your brushes redone. They do more than just take the can off and clean them like I did, they actually replace them with a set of brushes that do not cause the brush material to jam which is what Bosch should have done originally. These units have been in BMWs and other cars for years and this problem never came up until Bosch produced this new unit in late 2006 as an improvement.

CAUTION when calling Modulemasters be sure to talk to one of the technicians not the office staff. I had a hell of a time explaining to the office staff what I needed done and in the end they said oh we don't do that kind of work which was totally wrong. Once getting a tech I explained what I did and he said they correct the brush issue with different material and the cost is between 100-150 bucks and it will not fail from the brushes sticking again...

Glad you got it fixed and my only regret is that I didn't want the down time on the car to do this fix which in retrospect only took me about an hour to repair. Well at least I have a perfect back up now...

If I can do it anyone can do it and think of how much money you will save...
I am certain we will see more of this same problem and the fact MM does a repair on it is evidence of the problem.
I wonder if we should ask the mods to post a DIY from the guy that did his on the K1200 BMW as an aide to those that see this trifecta of lights come on.
What do you guys think??

Last edited by fun2drive; 02-25-2014 at 07:03 PM.
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