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#32
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One camp, not being BMW trained mechanics or engineers whose degree had any focus on this type of issue, and, even if so, don't have the BMW engineering rationale to evaluate before making a decision, or are shade tree engineers/mechanics, or base it on their experience, conclude the BMW statement is incorrect. And the other camp. Opinions are great but I think they should be worded as such rather than as declarative statements that imply technical expertise or that a reader is ignorant for following the BMW authored technical manual. This is not defensive or being contrary to other opinions, I think it needs to be said every once in awhile. Best practice always follows the facts.
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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior Dallas Last edited by bcredliner; 11-21-2016 at 01:53 PM. |
#33
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As bcredliner has put it there are two camps.
I am fence sitter... I bought the new bolts from BMW Parts (Well ordered them) only to remove the Protection Shield (CAREFUL IT IS HEAVY!) and proceed with maintenance, once complete I was left with no option but to reinstall the old bolts due to BMW not getting the parts in time. Truth is, I know what torsion strengths are and I am pretty well educated in material science as my job requires this knowledge on as we work in developing new materials to aid technology development. Simply, yes the boys at BMW know there stuff. They will have understood a wide/varied number of factors for these bolts and then decided that once removed, the deformation of the internal shaft that has been subjected to internal torque - would then change the materials torsion threshold via a set formula and then not meet the varied number of factors stated in the initial specification requirement. Hence replace. Now.. I do not know the 'Coca-Cola Recipe' for BMW engineers factors. Also I believe the margin of tolerance built in to withstand temperatures -26c and the heat of the desert +45c well exceeds my needs of -5c to (maybe) +30c driving around London on the school run in the rain. So, in conclusion. I reused the bolts. My requirements mean that the formula BMW engineers used far exceeds my use needs and I am not thinking about using the family wagon in the Dakar rally any time soon. So I will be fine. IMHO, I will be fine with them. But... this is my disclaimer, refit at your own risk. I did.
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BMW X5 E53 3.0 Diesel Sport | Sapphire Black Dakota Beige Leather interior | Year 2004 What I had updated Carbon Effect Steering Wheel Panoramic Sunroof Fix PVC Replacement All glowplugs and glowplug regulator New discs and pads all round All new front suspension links, bushes and rods |
#34
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I truly appreciate all the great feedback! This is exactly why I'm a member here. Such great information and dialogue, which I'd never get from folks outside this forum.
I'll be working to fix my PS leak over the weekend, then probably removing the stiffening plate to inspect for oil leaks the following weekend. I'll update this thread with my findings as the work progresses.
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2003 E53 3.0i DOB 10/15/2002 Sienna red, Savannah Beige Dakota leather Type FA53, Engine M54B30 2018 G02 30i DOB 4/21/18 Black Sapphire Metallic / Canberra Beige Vermasca leather Engine B46O |
#35
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Question:
I may be replacing my PS reservoir hoses soon - or at least replacing the clamps. I have not looked under the car yet to see if I can replace the clamps/hoses without dropping the plate. Can these hoses be replaced without dropping the plate? If the plate has to be dropped, can it be unbolted at the front, but left dangling (sitting on a jack) at the front and loosened at the rear? I ask because I am a one man show and will not have access to assistance.
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2006 X5 Sport 4.4i |
#36
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Getting someone to hold the ring spanner on the top-side nuts makes a great difference though and they won't even get dirty hands. A wife/gf/partner/child can do it - dogs not so much.
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Wayne 2005 BMW X5 3.0d (b 02/05) 2001 BMW F650GS Dakar (b 06/01) |
#37
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I tightened the clamp a bit: This stopped the leak. No need to drop the stiffening plate. All I did was: - Remove the plastic shield. I posted photos in forum as there are 3-4 types of screws. Search for the photo (it is in the partial cooling overhaul thread). - If you need more space, then drive the front up the wood ramps.
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1998 E39 528i 5sp MT 2006 E53 X5 3.0 6sp MT |
#38
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Edit: Scratch that, I have to assume that BMW didn't put worm gear clamps anywhere. So, that leaves me with a crimp clamp to replace?
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2006 X5 Sport 4.4i |
#39
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Correct me if wrong, but there are two types of stiffening plates. One heavy one in steel, and the one that i have in aluminum. The later one doesnt weight much at all, easy to support and get the bolts back in 😄
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