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BMW 3-Series (E90 E92) Forum
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DIY: Replacing DSC Hydro Unit E90, E92
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02-19-2019, 07:25 PM | #133 |
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INPA Brake Bleed
For the bleed procedure in INPA how much brake fluid does it use? The dealer is saying I need 2 12oz bottles but I think that is for the standard flush? Anybody know how many bottles they used doing the power bleed?
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02-19-2019, 08:00 PM | #134 |
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At least one 500ml bottle to do all four. I'd get two.
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02-23-2019, 06:36 AM | #135 |
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I always fill the bleeder with at least 2L fluid.
I flush 250mL per caliper. The INPA procedure and ISTA procedure doesn't actually use much but it depends if you have an assistant or not, and how long it takes to follow the steps. It can be done with less than a litre if you are familiar with the procedure and you have your working area all set up. eg. car on hoist, raised high enough to crawl underneath but low enough so you can do full strokes of the brake pedal using your foot. Where it costs additional fluid is if you don't do something as directed, quickly enough. So it will make you repeat it. |
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03-02-2019, 06:11 PM | #136 |
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Help no power to rear left wheel after abs replacement and DSC adjustment w/ISTA
I was able to complete the diy guide for replacing the abs pump motor for the 5DF0/5DF1 and got rid of my fault codes. However, when I ran the DSC adjustment procedure the car was on jack stands. Afterwards, when I shifted the car into drive, the rear left wheel moved maybe half a turn, the traction control light came on, and then no power delivery to the rear left wheel.
Driving the car now there is no power going to the back left wheel. Only the back right wheel is getting any power. Anyone have any idea what this is? There are no fault codes present and there are no lights on in the dash. Somehow I think when I ran the DSC adjustment and the car was on jacks, not on level ground, it maybe messed up the system to stop power delivery to the rear wheel. Or even worse a problem with the caliper or rear differential? |
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03-03-2019, 02:20 PM | #137 | |
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Skydiver. It's because these cars have open differentials from the factory. If it's on jack stands the diff will only send power to one wheel. Put it in neutral and turn one of the rear wheels by hand, the other side will spin the opposite direction no? |
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03-03-2019, 02:24 PM | #138 |
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Where did you guys get those caps?
Or if you follow the instructions that came with the part the OP posted and keep brake pedal pushed in >60mm you dont need the caps? |
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03-03-2019, 02:37 PM | #139 | |
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Also, I ended up using a 2011 335i RWD pump on my 2008 328i and I kept my original module with no problems. https://www.homedepot.com/p/ClosetMa...1016/100095946 Last edited by Bmwneedsworkagain; 03-03-2019 at 07:59 PM.. |
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03-06-2019, 02:00 PM | #140 |
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03-23-2019, 04:35 PM | #141 |
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ABS Pump issue
Guys some help needed my 335d just has code 5df0 and 5df1,after reading the posts i am going to change the ABS pump my part number is 3451-677 8484-01 are the pumps interchangeable i read somewhere the lci one is better pump will this fit with my control module or am i stuck with the pre face pumps?Advice would be greatly appreciated.Also do i need inpa to bleed the system after changing it.Thanks
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03-24-2019, 04:06 PM | #142 | |
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You need either INPA or ISTA+ to do the power bleed yourself, or take it to a shop and have them do it. I also had to do recalibration because I had a fault code 5dd0 DSC: Hydraulic unit: calibration, DSC unit (valves). I just clicked on it in ISTA and ran the recalibration and it fixed itself. |
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07-04-2019, 01:41 PM | #143 |
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Anyone have a fix for the screws not bottoming out all the way when you go to install the lines back into the ABS pump?
I don't have the UNIT bolted in all the way yet, I've moved it around some but some of the lines will not screw down all the way? Doesn't make sense to me.
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07-17-2019, 04:58 PM | #144 |
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Is it necessary to bleed the entire braking system before taking out the ABS pump? If i do this i will introduce a lot of air into the system, but i’m worried i will lose a lot of brake fluid in the engine bay otherwise. And can i run inpa / ista bleeding procedure without turning the ignition on? So i don’t have to get in the car while it’s on jack stands? Last edited by Knuppel; 07-17-2019 at 05:04 PM.. |
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07-18-2019, 09:27 AM | #145 | |
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07-18-2019, 09:32 AM | #146 | |
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If you put a rag down, it shouldn't leak too much brake fluid. I used my Foxwell to bleed and the ignition was in the "on" position but the car hadn't been started. Dunno about inpa, but I'm assuming it's the same as the tool and kdcan cable both communicate through the OBDII the same way. |
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07-20-2019, 09:46 AM | #147 | |
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Thanks for the reponse! |
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08-09-2019, 10:42 AM | #148 | |
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Brake Bleeding Question
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My question is on the bleeding method above in red. After the module is replaced and I lightly tighten the 6 tubes, am I supposed to have someone get in the car with the car off and pump the brakes and watch for bubbles on each tube before tightening each bolt? Can someone clarify this process? I have bled the brakes before with the self bleeder on each wheel and I'm supposed to do that after I do the first bleeding step, correct? I just want to make sure I understand the entire bleeding procedure before I get started. Thanks in advance. |
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08-17-2019, 08:56 AM | #149 |
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So i replaced the 5E20 dsc pump with a revised one from ECU testing. Mine was beyond repair. Still an error though. No more 5E20, but now 5E24 - pressure sensor implausible.
Did the Tool32 ‘dsc abgleichen’ and fg-... stuff. Brake bleeding procedure twice (with INPA DSC pump functions). After that i had -1 bar dsc pressure with brake released, 80 bar when fully depressed. This weekend i did the brake bleeding again, but with my brother so i could see if there were any bubbles coming out. Not much, only at the beginning of the procedure, but after the procedure dsc pressure was 0 to 1 (sometimes -0), and 130 bar fully depressed. Still the 5E24 error and dsc/dtc not working. What do you think, is this dsc unit faulty also? Or is there still air trapped in the brake system? Can anyone send me their brake pressure values in INPA? And is it normal for brake pressure to fluctuate a bit (within 1 bar) with pedal released? I’m in doubt as to what is normal. Last edited by Knuppel; 08-18-2019 at 05:35 AM.. |
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08-17-2019, 08:10 PM | #150 | ||
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08-25-2019, 08:04 AM | #151 |
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Anyone having a 5E24 error only, see this thread.
https://www.e90post.com/forums/showt...2#post25179832 |
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09-21-2019, 07:44 PM | #152 |
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depin wire from dsc wiring harness
Does anyone know how to get wire out of the metal elbow that keeps the loom in the engine bay?
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09-22-2019, 05:17 PM | #153 |
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figured it out!
It's glued then covered with rubber, you have to cut it away carefully to save the wires.
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10-06-2019, 05:46 PM | #154 |
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Lights
I installed my ABS pump and module yesterday. It just returned from Modulemasters.
Must require recoding, before it displayed the ABS, brake, and DSC faults. Now it also shows airbag, and CEL. Wipers turned after on initial engine start, speedometer does not work, and turn signals do not cancel. The iCarsoft shows lot of faults. Is the dealer recoding my only option? Car is a 2007 335i convertible, 49,000 miles, original owner. Trifecta for 2 years. Dealer has tried to scam me twice. Once when fuel pump threw a code, (3500.00 estimate) and refused to replace a flat tire with a stealer provided 1000.00 tire warranty. Car was 8 months old with 3,000 miles. Said nail is not covered. Never been back. Even the “free oil changes” were not worth arguing that brake fluid does not need changing more frequently than engine oil. If clearing the code for the fuel pump is 3500.00, recoding ABS might be 10,000.00. After I refused to authorize a 3500.00 “repair” they reduced to 1500.00. I cleared with the iCarsoft and drove off. I know this dealers service department is an anomaly. Really do not want to go back. |
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