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#21
11-12-2023, 03:43 PM
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#22
11-12-2023, 05:21 PM
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Well that is good news!
 If the O2 sensors are getting their reference through the connectors then maybe watch out not to spray any engine cleaner or what not around in that area that might poison the sensors again.
__________________
1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me) Last edited by 80stech; 11-12-2023 at 05:35 PM.
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#23
11-12-2023, 07:14 PM
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Will do..thanks again for your efforts in helping me. I'm an older car guy and I know that a lot of online efforts go unnoticed. Now I'm onto other X5 issues. I thought I had a driver side front wheel and tire out of balance. So I installed brand new wheels and tires and had them all balanced two different times. Still on the highway about 55 mph if I give it a half throttle or more the dash and the steering wheel and everything shake violently. But what's weird is from a stop I can floor it and it can go through all the years smoothly no problem. For some reason there's something about going heavy throttle at almost highway speeds. That causes a very bad front end vibration. Starting to think it might be the engine mounts or transmission
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#24
11-12-2023, 08:46 PM
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Was there any abnormal wear or cupping on the old tires? It could be something with the front suspension or does it seem maybe possible it's coming from the transfer case?
__________________
1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me)
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#25
11-12-2023, 08:55 PM
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No sir the old tires looked fine ..I just moved onto other wheels and new tire to totally rule that out as the culprit. If I had any critique it looks the lower control arm bushings could use replacing but they're not just totally torn through. It just kind of boggles with my mind that from a stop you can floor it and it pulls good and strong and clicks through all the gears without issue. But on the highway or higher speeds if you floor it can almost shock the drivetrain it starts shaking like crazy until you let off the gas. It almost feels like torque steer except for the wheels aren't being pulled out from under you. Engine or transmission mounts there symptoms sounded very similar to mine. But I also read that the n63 xDrive engine mounts are really difficult to replace. Which is not good news.. I welcome it to be anything else
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#26
11-12-2023, 09:03 PM
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Puzzling to me because it's usually at higher speeds at a higher throttle percentage. And it's almost like you feel it more in the dash and then you do in the steering wheel or the gas pedal. You do feel it in both of those things to a certain degree but man that dash feels like it's going to shake right out into your lap. I guess it could be the lower control arm bushings but I would have never guessed they can cause such a violent shake
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#27
11-12-2023, 09:13 PM
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I really can't see it being engine mounts but if others have had that then I guess it's possible. Why not go through the suspension first (or at least the control arms, I think they are the same setup as the e53) if you see some problems there anyway.
__________________
1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me)
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#28
11-12-2023, 09:20 PM
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Sound thinking for sure, I did notice no vibration at idle or upon startup or anywhere else. It seems to be throttle and mile per hour dependent. Like at 45 mile an hour if I give a half throttle it shakes violently but the second I let off the gas the shaking goes away. But it certainly couldn't hurt to go through the front suspension like you said it can only make it better vehicle even if that isn't the cause of the issue. Still learning about BMW stuff.How do the lower control arms work on these vehicles? Are they serviceable can the bushings be pressed out and new ones pressed in? Or is it like some vehicles where it's easier and cheaper to buy a whole brand new lower control arm?
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#29
11-12-2023, 09:32 PM
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I have only done the E53 ones and pressed the bushings in/out. I think the E70 is basically the same but heavier duty.
__________________
1988 325is (purchased new) sold 2004 X5 3.0 2005 X3 2.5 2008 X5 3.0 (new to me)
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#30
11-12-2023, 10:56 PM
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Cool I jumped on FCP Euro and they had a small front end refresh kit for less than $500. Had the lower front control arms and the lower front rear control arms. Can't beat that go ahead and do everything while I'm there both sides. No having to press in and out ball joints or press in and out bushings. Just do a part swap and move on
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