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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Replacing ABS DSC hydro pump



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      08-26-2018, 04:23 AM   #1
fozzydj
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Lightbulb Replacing ABS DSC hydro pump

Hi,

My ABS/DSC hydro pump failed about 12 months ago.

MOT has come up and I need to replace it (Ive kinda got used to driving it without any electronic aids however) as its a fail (all 3 warning lights on).

Im going to go for the used pump and switch the control modules option.

My pump part number is 3451 6776068 01 “6776068”

I can only find a couple with the same number and they are really expensive, £350 upwards.

Can I drop in a pump with a different part number and pop my control module onto it?

I have found one P/N: 6776056

Any help would be appreciated
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      08-27-2018, 04:27 PM   #2
fozzydj
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      08-28-2018, 05:18 AM   #3
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Hello,

I had the same problem on my 135i.

I suspect it was the stuck brush problem inside the pump.

I sent the ABS/DSC unit to an ABS repair company, i paid something like 450 EUR with a 12 months guarantee, no coding needed, and it tooks like 10 days in total to send it and get it back.

I couldn't drive the car without the ABS/DSC unit, when i got back the unit, i reinstalled it, and drove the car very slowly using the handbrake to a shop to make a full brake liquid flushing with the ABS procedure (you can do it with INPA).

The procedure costed me something like 100EUR.

Good luck
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      09-22-2018, 02:27 PM   #4
fozzydj
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Update on this, I purchased a ABS motor repair kit off ebay for £30. Took me a day and was quite complicated but I fixed the pump myself


Replaced the bushes in the motor.
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