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E60 / E61 (2004 - 2010)
BMW 5-Series E60 Sedan was first seen in the Unites States in the fall of 2003 with a 2004 Model Year designation. The E61 wagon followed shortly there after. The E60/E61 5 series is now available as a 528i, 528xi, 535i, 535xi, 550i and a 535xi sports wagon! -- View the E60 Wiki

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  #1  
Old 04-18-2017, 02:58 AM
chazhs chazhs is offline
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Mein Auto: E60 M5
E60 M5 Throttle Actuator Motor

Hello all,

I have finally managed to work out what I'm doing with my throttle actuators. They have new gears, new MOSFETS and one is still being a total pig...

Having taken it apart there was a strong smell of electronic burning. I have found the motor is incredibly stiff, and is clearly not happy. I've managed to get it out of the housing, does anyone know where I might be able to source a suitable replacement? Or does anyone have an old actuator with knackered gears/electronics which I can purchase to transplant my new bits into.

Thanks.
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  #2  
Old 04-20-2017, 08:46 AM
chazhs chazhs is offline
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Nobody able to help?
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  #3  
Old 04-20-2017, 09:11 AM
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gmak2012 gmak2012 is online now
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Mein Auto: E60:M5 530xi E39:540 528
I might have one at home from having redone both of mine last year. BUT.... I know I sent one down to RT7085 to do research as to why the electronics fail after working a few times. I'll check in my parts cupboard tonight and let you know. What EXACTLY are you looking for? Just the case, or just the cover?

Did you do the mosfets etc yourself? There is a guy in the UK who redoes the circuit boards and finds all the components that have failed or are borderline and warranties the work 'for life'.

Last edited by gmak2012; 04-20-2017 at 09:13 AM.
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Old 04-20-2017, 09:13 AM
chazhs chazhs is offline
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Hi mate, thanks for your reply.

I need the motor from inside the housing basically. It's held in by two torx bits the same as the electronics are, its the one with the metal gear on and the two tabs that connect to the electronics PCB.

Thanks.

Charlie.
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  #5  
Old 04-20-2017, 09:32 AM
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gmak2012 gmak2012 is online now
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Again, let me look and see if I still have one, what shape it's in, and what I would have to do to get the motor out.

Did you check the two slots in the circuit board, and the metal tabls that stick up from the housing to see if there was oxidation creating undue resistance and voltage drop?
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Old 04-20-2017, 09:52 AM
chazhs chazhs is offline
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The tabs are in a nice condition, the motor itself is completely knackered and is giving me very much a 'stepped' feeling when I turn it by hand (which is incredibly difficult it has to be said). It also wreaks of burnt winding insulation.

To get the motor out is quite simple, I undid the two torx bits and banged the unit on the ground face down (so where the opening is) and the motor popped right out.

Thanks.

Charlie.
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