Hey guys, I see people posting and asking for help for their non MB cars...

Well I posted in the BMW forums on the 5th of this month and the thread has 45 views and 0 replies

Here is what is going on, this is my moms car and its had the best A/C but out of nowhere the actual A/C unit head is not responding and seems to be 100% dead, the only thing that works are the lights that light it up at night.

Here is the weird part, the blowers are on and on high and there is no way to turn them off because the a/c unit is dead. Even when the car is off and the key is out the blowers continue to blow on high, I ended up having to take the fuse out for the blower motors so they would turn off. I checked the fuse for the a/c unit and they were all fine.

I'm thinking the unit just went bad.. is this possible? I figure I should just buy her a new A/C unit and pop it in and hopefully it will fix the problem.. What do you all think?

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2007 BMW 328XI

Sounds plausible that the headunit? Is dead. My mercedes had the problem of not turning off and it turned out to be the acc unit needed a resolder. I was willing to experiment becaiuse they are cheap in a 25 year old benz, but not too sure on a newer Bimmer.

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1984 300SD Orient Red/ Palomino
1989 560SEC
2016 Mazda 6 6 speed manual
1995 Ford F-150 reg cab 4.9 5speed manual

Yeah I'm thinking the head unit just fried, which is weird and out of nowhere but computers have a weird way of doing that lol

I hope it's something like a re solder, I haven't opened the actual unit up but i've taken it out to look at it and I couldn't see anything wrong, but again that was just the outside. I checked online and a new head unit is like $150 on ebay.. I'm just hoping it's the head unit.. How sad would it be ordering the $150 part and putting it on and then it's still dead LOL

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2007 BMW 328XI

My old X5 had a similar problem but it turned out to be the blower motor resistor, or maybe some other resistor, I don't remember. Looong gone.

If you don't have any way to properly diagnose the electrical problem, all you can do is throw parts at it and hope. It would probably be cheaper to leave it to a competent professional.

Here is my old one.

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1985 500SL Euro w/ AMG bits 130k
1984 300SD Turbodiesel 192k
1980 240D Stick China 188k
2001 CLK55 AMG 101k
2007 S600 Biturbo 149k Overheated Project, IT'S ALIVE!!!

Tyler I guess I jinxed myself because I remember you telling me about your X5 and how it was problematic and I was like "ours has been really reliable" and low and behold this happens... oh man lol

The blower motor resistor sounds very plausible seeing on how the blowers are on hiatus right now.. I don't have a proper way of diagnosing the electricals but I don't want to take it to a mechanic, because 90% of them suck -_- But it's my moms car and I don't want to mess with it... Here ours.. The front end is cut off because I was using my sisters camera and was in a rush because we just walked to, up and back from the volcano in the background and everyone was tired and wanted to leave lol Also notice how the drivers passenger door window is cracked open? Well it's because the stupid regulator broke AGAIN and the window won't go up...

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2007 BMW 328XI

When the resistor started acting up on mine, it killed the AC and made the fan speeds all funky.

I never had a window issue, but a recurring problem was axle boots. They made the turning radius so tight it would shred them easily. After replacing 3 front boots, one was a repeat, I knew it was time to dump the thing when I started hearing front end groaning and creaking. This was at 75k. Also, the intake sprung a leak and the car started drinking coolant. Electrical harnesses for the tail lights would get hot and melt. Tires would wear unevenly, and the dealer told me it was a common X5 issue and I couldn't do anything about it. The power rear hatch broke 3 times on me. The digital display on the stereo started bleeding. The thing that bothered me the most was that from day 1 of ownership, it had a lifter noise that the dealer dismissed as nothing important, but I had to listen to it.

I pamper my cars, so all these issues did not come from abuse. I owned the car from 2005-2008, 24k-75k.

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1985 500SL Euro w/ AMG bits 130k
1984 300SD Turbodiesel 192k
1980 240D Stick China 188k
2001 CLK55 AMG 101k
2007 S600 Biturbo 149k Overheated Project, IT'S ALIVE!!!

That sucks you had such a bad experience with one, but jeez... after all those malfunctions and things going wrong the dealer should have given you another X5! Maybe you got a factory lemon? Which is no excuse especially for a brand such as BMW...

What makes me angry is the axel and the regulators that go out all the time... I'm not kidding you we've probably been through 8+ regulators on this car since we've owned it and no one ever sits in the back seat and uses the rear windows.. they just fail on there own for no reason with small amounts of use on them.. The axel part sucks because we were told the dealer (service) knew about it when we took it in under warranty but didn't say anything because they knew the repair bill was going to be $1,500+ This is going to sound horrible but we've been driving with bad axels for years now :S Other than the water pump bearings breaking on us on the freeway we've never had any main issues with the car except for these three, well now with this A/C fiasco... I'd like to one day go over everything on this car and store it, because it's been a great car to us. The A/C happened to break while my sister was driving the car so my parents think she did it haha

Oh also, we have that rear wheel out of balance thing to but it doesn't wear the tires oddly it just looks funky from far away, we were told that was "just a X5 thing" also... So is this what BMW now tells its customers instead of fixing it? I should write a letter to them... pfft

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2007 BMW 328XI

Did you post on bimmerforums.com?

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra

I'd dump it. One of my uncles leased an 06 from 06-08 and it was a POS. Luckly it was under warranty so he didn't get stuck with the bill when it broke.

Doesn't seem like a good vehical to own as it ages.

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

yeah, they helped me out before with some questions, but this time I got nothing lol

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2007 BMW 328XI

We could never dump our X5, my mom loves it and it's become part of the family. She might get a new car soon, but she said that she still won't sell it never will, and that my sister shouldn't touch it because she thinks she broke the A/C lol I keep telling her it was just the car haha

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2007 BMW 328XI

I bumped your thread for you over there. Trying to get some discussion going. I think the problem is there isn't much activity on the X forum there. The fact that the blower goes with the car off is a distinct symptom that something is very wrong with the controller. Have you searched for TSB's at AllData?

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra

Thanks for helping me out with the bimmerforum! they are pretty helpful I guess it's just like you said.. not that much activity in the X part of the forum

I actually put the fuse back in the for the blower with the car off and key out, and they came on full blast like before... I then took out the controller and unplugged it, low and behold the blowers turned off... So can I safely say that it is the controller that messed up royal and a new one can fix the problem? I hope so lol

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2007 BMW 328XI

It looks like my devious plan worked. BTW, my father had a 1969 220D. 0 to 60 in, how much time do you have...

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra