Another micro power module (MPM) blown!
09-21-2011, 07:33 PM
#32
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Is it confirmed that you have to get your car reprogrammed? Does our car have to be programmed by the dealership? Unfortunately over a gallon of water spilled in my trunk this morning and now my idrive isn't working. One thing I can say is nothing burned up.
09-27-2011, 06:31 PM
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10-13-2011, 06:28 PM
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It also just happened to my 545i. What a ridiculous place to put the module. I replaced it and the one Fuse I know of and the radio still does not come on. I am going to check all the fuses. Is there a definitive answer on if it has to be programmed? I was hoping the radio would at least power on. Do you think its another fuse somewhere? I replaced fuse no. 57 - 20 amp.
10-14-2011, 05:48 AM
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My Ride: 2006 530i, Jet Black, Tan, Premium, Steptronic
I don't know if the module needs to be programmed, or not. Why not install it and find out?
While you are installing the new part take a few minutes and move the MPM to sit over the wheel well. I put mine behind the Sirius Tuner. I wouldn't use a ZIP lock bag. How can the bag seal the part completely? The MPM is an electronic device needs a cooling air supply which will be greatly reduced with a plastic bag.
While you are installing the new part take a few minutes and move the MPM to sit over the wheel well. I put mine behind the Sirius Tuner. I wouldn't use a ZIP lock bag. How can the bag seal the part completely? The MPM is an electronic device needs a cooling air supply which will be greatly reduced with a plastic bag.
10-14-2011, 10:11 AM
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My Ride: 2006 525XI, Jet black on Dakota beige. Premium and winter packages. I consider myself a purist and intend to keep my car absolutely stock and shiny.
2008 328I Convertible, Sapphire black on beige interior. Premium package, NAV, iPod adapter.
Retired: 2002 325I, Titanium silver on black leather. Premium package. Absolutely stock and proud of it.
Won't this lead to overheating?
10-14-2011, 10:22 AM
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My Ride: 2008 550I,Space Grey,Hud,Cold Weather,M - Sport, matched GP Thunder headlights and Fogs,,Smoked Badges, Night Vision, Heated Seats,Rear Sunshades, Aux Audio, SAT, NAV, Black Grills, Sprint Booster, Dinan Cold Air, Stage 2 Dinan Software.....More to come soon
Ok I must be genuinely confused or not understanding this correctly. How does the water get into that area in the first place and if so it has to be significant amount of water to basically flood the area? Please help me understand this correctly.... 
10-14-2011, 12:26 PM
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My Ride: 2006 525XI, Jet black on Dakota beige. Premium and winter packages. I consider myself a purist and intend to keep my car absolutely stock and shiny.
2008 328I Convertible, Sapphire black on beige interior. Premium package, NAV, iPod adapter.
Retired: 2002 325I, Titanium silver on black leather. Premium package. Absolutely stock and proud of it.
According to my SA, another way to get water in the trunk is to have debris such as leaves or pine needles build-up above the trunk rubber trim just below the rear window, causing water to come in where the rubber trim cannot compress against the metal surface. I've also read that simple water runoff, when it rains, can find its way to the electronics when you simply open the trunk during a strong waterfall.
Sad that BMW is not even trying to remedy their design flaw by simply moving the electronics whenever the car is in the shop.