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Z4M Engine Mounts / Bolts - **ALERT ALL Z4M DRIVERS**

"M" Specific discussion
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hopz121
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Z4M Engine Mounts / Bolts - **ALERT ALL Z4M DRIVERS**

Post by hopz121 » Thu Mar 17, 2016 11:21 am

Does anyone know if the E46 M3 suffers from this issue?

Was there a knock or a sign of something being wrong Bing?

Thanks

Ash
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Z4M Engine Mounts / Bolts - **ALERT ALL Z4M DRIVERS**

Post by Bing » Thu Mar 17, 2016 11:27 am

Symptoms on page 3 Ash. I'm afraid I have no idea if the M3 suffers the same problem.
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Z4M Engine Mounts / Bolts - **ALERT ALL Z4M DRIVERS**

Post by hopz121 » Thu Mar 17, 2016 1:51 pm

Thanks Bing ill have a look at mine on the M3 and see if they are similar (i'm guessing they will be)
2004 BMW E46 M3 Coupe - Manual - Silver Grey
2017 BMW F31 318d M-Sport - Auto - Glacier Silver
2007 Porsche Cayman 2.7 - Manual - Arctic Silver
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2003 BMW E85 Z4 3.0i - Gone
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Z4M Engine Mounts / Bolts - **ALERT ALL Z4M DRIVERS**

Post by MrPT » Sun Jan 06, 2019 7:52 pm

I was checking my suspension today and thought I'd have another go at inspecting the driver's side engine mounts. All the visible bolts have looked ok in the past; it's just the couple behind the vanos pressure accumulator which have been tricky to inspect properly.
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It was a proper sh!t to get sight of, but very glad I did now! :o
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Z4M Engine Mounts / Bolts - **ALERT ALL Z4M DRIVERS**

Post by Smartbear » Sun Jan 06, 2019 8:07 pm

That rear bolt looks like it’s backed out by a couple of threads :o
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Z4M Engine Mounts / Bolts - **ALERT ALL Z4M DRIVERS**

Post by john-e89 » Sun Jan 06, 2019 8:13 pm

Smartbear wrote: ↑Sun Jan 06, 2019 8:07 pm That rear bolt looks like it’s backed out by a couple of threads :o
Rob
And then some...good job you looked Mr PT.
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Z4M Engine Mounts / Bolts - **ALERT ALL Z4M DRIVERS**

Post by MrPT » Sun Jan 06, 2019 9:42 pm

Feeling relieved to have caught it but also a bit silly. The bolt that I was lazy to check might be the one that's the most likely to back out or break, going by the stories in some of these threads.

What's the latest verdict re. replacements? Uprated OEM (10.9) bolts plus Nordlocks?
2008 Z4MC: heavy wheels | crap suspension | skittish rear end | wobbly engine | not enough induction noise | underwhelming turn in | inconsistent braking | lardy battery | chubby steering wheel
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Z4M Engine Mounts / Bolts - **ALERT ALL Z4M DRIVERS**

Post by john-e89 » Sun Jan 06, 2019 11:00 pm

MrPT wrote: ↑Sun Jan 06, 2019 9:42 pm Feeling relieved to have caught it but also a bit silly. The bolt that I was lazy to check might be the one that's the most likely to back out or break, going by the stories in some of these threads.

What's the latest verdict re. replacements? Uprated OEM (10.9) bolts plus Nordlocks?
No reason to change bolts MrPT, nordlocks and thread lock should suffice I would think.
M roady...OEM CSL’s, strut brace, Remus back boxes, ZHP
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E89 35i project car...mapped 365bhp, M4 stoppers & wheels, KWV3’s, H&R front ARB, M3 front arms, strut brace Eisenmann cat back race exhaust, VRSF downpipes inbound
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Z4M Engine Mounts / Bolts - **ALERT ALL Z4M DRIVERS**

Post by MrPT » Sun Jan 06, 2019 11:27 pm

john-e89 wrote: ↑Sun Jan 06, 2019 11:00 pm
MrPT wrote: ↑Sun Jan 06, 2019 9:42 pm Feeling relieved to have caught it but also a bit silly. The bolt that I was lazy to check might be the one that's the most likely to back out or break, going by the stories in some of these threads.

What's the latest verdict re. replacements? Uprated OEM (10.9) bolts plus Nordlocks?
No reason to change bolts MrPT, nordlocks and thread lock should suffice I would think.
They are stretch bolts so I’d like to bin them. Nordlocks feel like a good idea though.

Might just remove the pressure accumulator and see how mobile that bolt is before speaking to my indie.
2008 Z4MC: heavy wheels | crap suspension | skittish rear end | wobbly engine | not enough induction noise | underwhelming turn in | inconsistent braking | lardy battery | chubby steering wheel
2006 Z4 2.5si: gone
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Z4M Engine Mounts / Bolts - **ALERT ALL Z4M DRIVERS**

Post by Smartbear » Sun Jan 06, 2019 11:49 pm

MrPT wrote: ↑Sun Jan 06, 2019 11:27 pm
john-e89 wrote: ↑Sun Jan 06, 2019 11:00 pm
MrPT wrote: ↑Sun Jan 06, 2019 9:42 pm Feeling relieved to have caught it but also a bit silly. The bolt that I was lazy to check might be the one that's the most likely to back out or break, going by the stories in some of these threads.

What's the latest verdict re. replacements? Uprated OEM (10.9) bolts plus Nordlocks?
No reason to change bolts MrPT, nordlocks and thread lock should suffice I would think.
They are stretch bolts so I’d like to bin them. Nordlocks feel like a good idea though.

Might just remove the pressure accumulator and see how mobile that bolt is before speaking to my indie.
We used nordlock washers on trackside connections on London Underground, they seem to do the job.
If over-torqued though, they can cause issues with the bonding of the two washer halves becoming unstable/failing.
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e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold
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Z4M Engine Mounts / Bolts - **ALERT ALL Z4M DRIVERS**

Post by john-e89 » Sun Jan 06, 2019 11:51 pm

MrPT wrote: ↑Sun Jan 06, 2019 11:27 pm
john-e89 wrote: ↑Sun Jan 06, 2019 11:00 pm
MrPT wrote: ↑Sun Jan 06, 2019 9:42 pm Feeling relieved to have caught it but also a bit silly. The bolt that I was lazy to check might be the one that's the most likely to back out or break, going by the stories in some of these threads.

What's the latest verdict re. replacements? Uprated OEM (10.9) bolts plus Nordlocks?
No reason to change bolts MrPT, nordlocks and thread lock should suffice I would think.
They are stretch bolts so I’d like to bin them. Nordlocks feel like a good idea though.

Might just remove the pressure accumulator and see how mobile that bolt is before speaking to my indie.
Ah ok, stretch bolts, every days a school day... :thumbsup:
M roady...OEM CSL’s, strut brace, Remus back boxes, ZHP
MR2 MK 2
E89 35i project car...mapped 365bhp, M4 stoppers & wheels, KWV3’s, H&R front ARB, M3 front arms, strut brace Eisenmann cat back race exhaust, VRSF downpipes inbound
E89 35is
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Z4M Engine Mounts / Bolts - **ALERT ALL Z4M DRIVERS**

Post by flimper » Mon Jan 07, 2019 12:21 am

My bolt from a few years ago
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Z4M Engine Mounts / Bolts - **ALERT ALL Z4M DRIVERS**

Post by MrPT » Mon Jan 07, 2019 12:32 am

flimper wrote: ↑Mon Jan 07, 2019 12:21 am My bolt from a few years ago
Ok, you win! Did you replace all the bolts or just the one that backed out?
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Z4M Engine Mounts / Bolts - **ALERT ALL Z4M DRIVERS**

Post by BMWZ4MC » Mon Jan 07, 2019 7:22 am

I remember someone on here had the bolts back out completely leaving the engine resting on the ARB :o Does anyone know if these would have been replaced when my indie changed my engine mounts to VT mounts?
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Z4M Engine Mounts / Bolts - **ALERT ALL Z4M DRIVERS**

Post by Angelus666 » Mon Jan 07, 2019 9:21 am

Ok, so guessing most folk will now look to check their car for this. Can you highlight exactly where to look in the engine bay for this?
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