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#1
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New bump stops allowing water through
I tightened it best I could with the 30mm nut on the back, but yesterday I noticed that even now water is still getting in. Back when I installed the new ones, I made sure to add some towels right on the 30mm nut to make sure water would not destroy my brand new amplifier. Yesterday I took a look at the towel and the right side was completely soaked in water (it's been raining a lot last 2 weeks). Should these bump stops be installed with sealant or something? EDIT: The OEM number is 51247171558
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2002 BMW E53 4.6is - Estoril blue 1984 BMW E30 325 - Zinnoberrot 1964 Chevrolet Chevelle 300 - Meadow green Last edited by Estoril; 08-02-2023 at 07:40 AM. |
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#2
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What bump stops are you talking about?
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E39 530dA -02 M-Sport Messing metallic E53 X5 3.0dA -06 Sport Stratus grey E70 X5 40d -12 M-Sport Space grey |
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#3
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My bad, I'm talking about the rear hatch bump stops. OEM number 51247171558.
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2002 BMW E53 4.6is - Estoril blue 1984 BMW E30 325 - Zinnoberrot 1964 Chevrolet Chevelle 300 - Meadow green Last edited by Estoril; 08-02-2023 at 07:40 AM. |
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#4
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Rear hatch bump stops...
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Wayne 2005 BMW X5 3.0d (b 02/05) 2001 BMW F650GS Dakar (b 06/01) |
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#5
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I installed those and have not noticed any water intrusion.
I don't recall any gaskets on the original bump stops or the upgraded ones ?? But I don't see the harm in adding a little sealant. Go for it. |
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#6
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If I'm going off memory, there is a thin gasket behind the metal plate.
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#7
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I replaced mine a few month’s ago too and haven’t had any issues. I seem to recall they are side-specific? Could you have reversed them? I do recall a gasket as well, and that a large socket was needed to get to the nut, which was a pain to tighten as the whole thing wasn’t secure and stable during tightening until it was basically tight (trying to crank it down on a curved surface). Could yours be off center slightly?
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Current Original owner 2002 E53 X5 4.4i to 4.6i swap 2026 G80 M3 6 spd 2025 G06 X5 50e Former 1972 Audi Fox 1986 Saab 900S 1996 BMW Z3 1998 BMW E36 M3 Sedan 2004 BMW E46 M3 2006 Audi A3 Quatro 1993 Mopar 318 Jeep Grand Cherokee 2015 V6 Jeep Grand Cherokee |
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#8
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I've added some sealant to the rubber on both sides yesterday. Made sure to add a towel temporarily so no rain water will touch the sealant.
I did notice when I took off the bump stop that water was definitely getting in judging by the dirt marks. See image below. When I re-installed it, you can see the rubber gasket being pushed out of the way a bit even if it's not all that tight. I did end up just tightening it quite hard and hoping the sealant will fill any micro gaps it leaves. Not really fully sure this is the way to go to be honest...
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2002 BMW E53 4.6is - Estoril blue 1984 BMW E30 325 - Zinnoberrot 1964 Chevrolet Chevelle 300 - Meadow green |
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#9
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I don't believe this is your issue but in your pic, on the bottom right, you seems to have a raised edge/ a burr of paint or metal ?
Are you sure it's tightened down snug ? I recall a straight extension won 't cut it on one side but does require the use of a wobble ...Going off memory Last edited by jsoto; 08-07-2023 at 08:28 AM. |
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#10
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Problem solved! Turns out the rubber for the trunk's wiringloom had been pushed slightly in, allowing water to seep in and end up at the exact same location. Also took off both the bump stops, turns out somehow Left and Right got mixed up. Re-installed them properly with some fresh sealant to make sure no water will even get in here again and fixed the wiring loom rubber as well.
@jsoto: I noticed this as well but it looks bigger on the photo. The rubber piece seals this off. The bump stops have now been re-tightened and should be good to go! Thanks for all the help guys!
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2002 BMW E53 4.6is - Estoril blue 1984 BMW E30 325 - Zinnoberrot 1964 Chevrolet Chevelle 300 - Meadow green |
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