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post #11 of 178 Old 11th October 2017, 04:20 PM
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That Flex Seal seems like it would trap water underneath, making the problem worse?

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post #12 of 178 Old 11th October 2017, 04:30 PM Thread Starter
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Quote:
Originally Posted by xrviz View Post
First off, try to find out what the PO has done regarding the VANOS. Then read the vanos diy threads in the diy sticky. The main issue is not startup rattle but crud plugging the solenoids causing them to not advance/retard the cams properly. Many people experience a jerky throttle in lower gears.
If it hasn't been done, you need to pull the solenoid boards, remove the gauze filters, blast the noids with brake cleaner/compressed air, and replace the solenoid O rings. Inspect/test the solder points.
Thanks for the detail, I will need to inspect this and see if this may be what is causing the hesitation, as I want this car to drive normally and it's frustrating the way it drives around town right now!

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That Flex Seal seems like it would trap water underneath, making the problem worse?
No way, it was completely bone dry before I put the flex seal on there, and now that it's dried out, it's totally glued tight to the paint work and there is no way any water can ever get underneath now.
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post #13 of 178 Old 11th October 2017, 05:32 PM
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Originally Posted by Trizzuth View Post
No way, it was completely bone dry before I put the flex seal on there, and now that it's dried out, it's totally glued tight to the paint work and there is no way any water can ever get underneath now.
From my basic understanding of rust, you have only hidden it from your view. It will continue to creep underneath the flex seal until one day you'll see it peeking out. Wait too long and it will appear on the outside of your filler area. It's your car, do as you please, but I wouldn't be so adamant that flex seal has stopped rust bubbles.

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...My gas cap area water collector/storage area (terrible design) had developed its inevitable rust. I waited too long to go after it-- it has spread to under the gas door, which is visible with the gas door closed. Really kicking myself for that.

Anyway, ground it down to bare metal (didn't take any pics because I was too busy hating myself), degreased it, metal prepped it, POR15ed it, and painted it. It's visible if you're looking for it, but not the worst thing ever. Kicking myself for not going after this before it spread to a visible area of the car (I actually asked the body shop to address this when it was recently in, but they forgot).

At least the spread should stop, now that it's POR15ed...

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post #14 of 178 Old 11th October 2017, 06:11 PM Thread Starter
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I agree that what i did has certainly not stopped the rust creep, but seeing that water pool in there, any time it rains or there is enough dew to run down the car is 10000 x worse in my opinion. My E46 turned into a rust bucket up here in the northeast and I will do everything I can to prevent this car from becoming that, although I know it is ultimately inevitable!

New exhaust brackets installed and new O2 sensor wire hangers also installed. Man the old ones were rough. Pics coming in a bit.
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post #15 of 178 Old 11th October 2017, 06:13 PM Thread Starter
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Here’s the exhaust bracket carnage and new installed..



New o2 wire hangers


Does this rear metal brace bar look bent to you? Or should it be like that?No idea wtf the PO was driving over to get this kinda scratches in the bottom of the gas tank! Speed bumps maybe??



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post #16 of 178 Old 11th October 2017, 09:43 PM Thread Starter
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Polished up my tips!

Dirty


Clean





Also, testing a black rear valence with some plasti dip.. will see if I like it or not..



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post #17 of 178 Old 12th October 2017, 03:27 AM Thread Starter
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Valence done and remounted. Came out pretty nice, but light was dark as it was dusk so I will take a good look tomorrow..




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post #18 of 178 Old 12th October 2017, 03:55 AM
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Quote:
Originally Posted by Trizzuth View Post
Does this rear metal brace bar look bent to you? Or should it be like that?No idea wtf the PO was driving over to get this kinda scratches in the bottom of the gas tank! Speed bumps maybe??
Trizzuth's 2003 E39 M5 Maintenance Thread-img_5892.jpg


Or a curb. Yeah that's bent well. Check out this pic from Redshift. Should lay nice and flat.

Trizzuth's 2003 E39 M5 Maintenance Thread-img_5890.png

Looks like your right side, which would be PN 51717892186. Probabably just want to contact Clemster over in the Parts for Sale section. I'm sure he can fix you up with a decent one for much less money.

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post #19 of 178 Old 12th October 2017, 05:52 AM
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I had the same hesitation (from a stop, roll into the throttle and the car would respond, then hesitate in 1st and 2nd).

I changed the fuel filter (dated 8/02) and the hesitation went away.

This weekend- driveshaft and guibo!
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post #20 of 178 Old 12th October 2017, 01:31 PM Thread Starter
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Quote:
Originally Posted by Ibmotoren View Post
Attachment 828666


Or a curb. Yeah that's bent well. Check out this pic from Redshift. Should lay nice and flat.

Attachment 828674

Looks like your right side, which would be PN 51717892186. Probabably just want to contact Clemster over in the Parts for Sale section. I'm sure he can fix you up with a decent one for much less money.
Thanks for the pic and I was already checking out Clem's thread, what a gold mine! I will reach out and see what he has..

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Originally Posted by Pau_Hana View Post
I had the same hesitation (from a stop, roll into the throttle and the car would respond, then hesitate in 1st and 2nd).

I changed the fuel filter (dated 8/02) and the hesitation went away.

This weekend- driveshaft and guibo!
But you have an E60 M5 correct?

I will say that I put the car immediately into sport mode this morning, and I don't know if it was a placebo effect or what from giving the car a bit of love, but it fired up and sounded more beastly than normal. Then my clutch felt great and no creaks when engaging first. Could it be that those loose and obviously rattling exhaust brackets contributed to most of the noise I was hearing in the clutch area before? Car also drive much better in 1 and 2 in Sport. I will keep an eye on things and report back.

I changed the fuel filter on several high mileage E46's and they looked totally fine when I cut them open. I am somewhat skeptical about fuel filter changes as with the plastic gas tanks in the BMW, there is no chance of residue from the car's tank, it would only be from the gas stations, and it all seems to be very clean up here in the northeast. I think they require frequent replacement of the underground tanks in most places as well, based on what I have seen in other fuel filters.
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