5DD0 Hydraulic Unit : Adjustment, DSC unit (valves)

WTB_135i_ 6Speed · 03-04-2023, 09:25 AM

Resolved

Abdul · 03-07-2023, 05:16 PM

I would check if anyone near you has INPA/ISTA and run the codes from there and see what pulls up. Google thinks that it has something to do with your ABS control unit. Let us know what it is once you figure it out. Good luck!

Nomad Dave · 03-08-2023, 04:35 PM

Check for codes but likely bad wheel speed sensors. The speed sensor data is tied to multiple systems in the car. ABS, Seat belts, Airbags, probably others.

WTB_135i_ 6Speed · 03-11-2023, 04:36 PM

@normad Dave @abdul

Update: mechanic thinks they need to bleed brakes to remove air from DSC unit…
Anyone go this route ? Estimate $500

Error code 5DD0 Hydraulic Unit Adjustment, DSC unit valves

Anyone, any leads on the issue ?

Independent mechanic thinks we need to replace DSC, any thoughts?

tdott · 08-30-2023, 09:12 PM

What ended up being your issue?

Sounds like DSC pump issue.

Scrippy · 08-30-2023, 09:56 PM

I’ll guess ABS pump.

amrazM · 08-31-2023, 04:46 AM

based on the scenario, im guessing this car never had a brake fluid change due to its low mileage. the dsc unit failed, likely from moisture inside of it.

03-04-2023, 09:25 AM	#1
WTB_135i_ 6Speed Second Lieutenant 85 Rep 277 Posts Drives: M3 e90 Join Date: Sep 2007 Location: SF Bay Area, CA iTrader: (1)	5DD0 Hydraulic Unit : Adjustment, DSC unit (valves) Resolved Attached Images Last edited by WTB_135i_ 6Speed; 09-01-2023 at 06:15 PM.. Reason: UPDATE
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03-07-2023, 05:16 PM	#2
Abdul Captain 1059 Rep 737 Posts Drives: E39 M5/E92 M3/E60 M5/F80 M3 Join Date: Jul 2016 Location: Michigan iTrader: (6)	I would check if anyone near you has INPA/ISTA and run the codes from there and see what pulls up. Google thinks that it has something to do with your ABS control unit. Let us know what it is once you figure it out. Good luck!
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03-08-2023, 04:35 PM	#3
Nomad Dave New Member 12 Rep 22 Posts Drives: 2011 BMW M3 Join Date: May 2021 Location: Key Largo Fl iTrader: (0)	Check for codes but likely bad wheel speed sensors. The speed sensor data is tied to multiple systems in the car. ABS, Seat belts, Airbags, probably others.
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03-11-2023, 04:36 PM	#4
WTB_135i_ 6Speed Second Lieutenant 85 Rep 277 Posts Drives: M3 e90 Join Date: Sep 2007 Location: SF Bay Area, CA iTrader: (1)	Update - brake bleeding.. air in ABS sensor ? @normad Dave @abdul Update: mechanic thinks they need to bleed brakes to remove air from DSC unit… Anyone go this route ? Estimate $500 Error code 5DD0 Hydraulic Unit Adjustment, DSC unit valves Anyone, any leads on the issue ? Independent mechanic thinks we need to replace DSC, any thoughts? Attached Images Last edited by WTB_135i_ 6Speed; 03-13-2023 at 06:53 PM.. Reason: Update
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08-30-2023, 09:12 PM	#5
tdott Brigadier General 4036 Rep 4,064 Posts Drives: M3 Join Date: Nov 2010 Location: South FL / 6ix iTrader: (4)	What ended up being your issue? Sounds like DSC pump issue.
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08-30-2023, 09:56 PM	#6
Scrippy Lord Scrip 1861 Rep 3,050 Posts Drives: 2011 M3 Coupe Join Date: Jan 2012 Location: LA,Ca iTrader: (0) Garage List [10.00] 2007 BMW 335i [10.00]	I’ll guess ABS pump. __________________
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08-31-2023, 04:46 AM	#7
amrazM mTekMods 2248 Rep 2,995 Posts Drives: like a granny. Join Date: Jan 2010 Location: Manhatan iTrader: (1)	based on the scenario, im guessing this car never had a brake fluid change due to its low mileage. the dsc unit failed, likely from moisture inside of it. __________________ 2011 Frozen Black/Fox Red E90 M3 650+WHP G-Power Supercharged First DCT to Manual Conversion Worldwide KW CS, BBS RI-A, BW Headers, Snow 2.5
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