Fuel pump swap

NJMorrisM5 · 07-19-2023, 06:44 AM

Hello!

As above has anyone done this themselves?

m5rosco · 07-19-2023, 04:23 PM

High pressure, yes. Upgraded to f90 pumps. Very easy.

Make sure battery is disconnected so low pressure pump doesn't kick in whilst the hardliner are removed!

I'd advise getting new bolts from BMW. They are very cheap and have threadlock already applied.

When removing the old bolts, and fitting the new, alternate side to side a quarter turn at a time to make sure the pump comes out and goes in square. You could snap the shaft inside pump if pulled down out of square.

Torque to 12nm.

TinCanSailor · 08-02-2023, 10:47 AM

Not sure if it was the fix but after adding the f90 hpfp's I stopped getting the Drivetrain Malfunction at higher speed pulls.

Are you doing this to correct an issue or for tuning purposes.

M5Rick · 08-03-2023, 12:02 PM

Nice to know it's not hard to change these out yourself.

KurtsM5 · 12-28-2023, 10:42 AM

I did the low pressure pump under the back seat. Sucked. It was blowing fuses.

07-19-2023, 06:44 AM	#1
NJMorrisM5 New Member 3 Rep 24 Posts Drives: F10 M5 Join Date: Feb 2022 Location: NJ iTrader: (0)	Fuel pump swap Hello! As above has anyone done this themselves?
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07-19-2023, 04:23 PM	#2
m5rosco Second Lieutenant 211 Rep 250 Posts Drives: 2016 F10 M5 Join Date: Jun 2020 Location: UK iTrader: (0)	High pressure, yes. Upgraded to f90 pumps. Very easy. Make sure battery is disconnected so low pressure pump doesn't kick in whilst the hardliner are removed! I'd advise getting new bolts from BMW. They are very cheap and have threadlock already applied. When removing the old bolts, and fitting the new, alternate side to side a quarter turn at a time to make sure the pump comes out and goes in square. You could snap the shaft inside pump if pulled down out of square. Torque to 12nm.
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08-02-2023, 10:47 AM	#3
TinCanSailor Fueled by Recycled Dinosaurs! 630 Rep 1,171 Posts Drives: F06 M6 Join Date: Dec 2019 Location: 813Bay, Fl iTrader: (2) Garage List 2015 BMW M6 Gran Coupe [9.75]	Not sure if it was the fix but after adding the f90 hpfp's I stopped getting the Drivetrain Malfunction at higher speed pulls. Are you doing this to correct an issue or for tuning purposes. __________________ 2015 F06 M6 Silverstone Metallic II, Individual Full Leather, B&O, Night Vis, CCB, RKAutowerks (CP Rods/Pistons, DI Cams, CF Intakes, Coated DP's & Billet Diff Brace), InfinityAuto Turbo Inlets, Mishi Oil Cooler, JB4, XHP S3, BM S3
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08-03-2023, 12:02 PM	#4
M5Rick General 60061 Rep 19,543 Posts Drives: M5 F10 DCT Gunmetal Join Date: Aug 2018 Location: Southern England iTrader: (0)	Nice to know it's not hard to change these out yourself.
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12-28-2023, 10:42 AM	#5
KurtsM5 Private 17 Rep 58 Posts Drives: 2013 w/ DPs, BM3 stage 2 Join Date: Sep 2022 Location: Tampa Bay area Florida iTrader: (0)	I did the low pressure pump under the back seat. Sucked. It was blowing fuses.
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