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Bonnet Gas Struts
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Bonnet Gas Struts
Just had the Zed (64 plate 19,500 miles) MOT and brake fluid change done at the local BMW and they have advised the Bonnet Gas Struts (B51.23.7.285.823) should be replaced as part of the service schedule as they are out of date. Also not covered on the BMW extended warranty.
I told them to leave it as the bonnet hasn't fallen on my head yet and I have it open once a week to check and charge the battery.
Seems like changing components for the sake of it unless any better qualified experts on the forum know otherwise.
Thanks for any advice.
I told them to leave it as the bonnet hasn't fallen on my head yet and I have it open once a week to check and charge the battery.
Seems like changing components for the sake of it unless any better qualified experts on the forum know otherwise.
Thanks for any advice.
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Bonnet Gas Struts
I've got a 2011 2.0 and when its been into BMW in the past they've never mentioned this.
2011 E89 sDrive20i
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Bonnet Gas Struts
I’d never heard of this one but yes it does exist..
I cross checked on my VIN number because often these procedures apply to only certain BMW models at certain times in certain markets.
However my 2012 MY 20i does have option S8TF so yes in theory they should be replaced as part of the maintenance program…
Strangely my 2011 MY 35is does not have S8TF in its VIN description...
I cross checked on my VIN number because often these procedures apply to only certain BMW models at certain times in certain markets.
However my 2012 MY 20i does have option S8TF so yes in theory they should be replaced as part of the maintenance program…
Strangely my 2011 MY 35is does not have S8TF in its VIN description...
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Last edited by B21 on Tue Nov 09, 2021 6:12 pm, edited 1 time in total.
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is
A very modified Atacama Yellow 35is
- RobbiZ4
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Bonnet Gas Struts
Yes, there is an expiry date on it as it's an active component and it has to be replaced on a regularly base. In Germany, the bi-annually TUEV checks will fail, if not replaced in time.
It's definitely NOT to safe your head UNDER the bonnet, it's to safe pedestrians.
Pardon, je suis Allemand
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Bonnet Gas Struts
So what about the explosive charges for the bonnet? Surely these will also have a 'shelf life'?
All good things come to those who wait. I'm really impatient which explains a lot.
F31 320i. Good car.
E89 20i Now fully dried
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Tatty old R56 Mini Cooper. Money pit!
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
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Bonnet Gas Struts
What is active pedestrian protection? Does it mean you can mow down pedestrians and they will be ok?
2011 E89 sDrive20i
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Bonnet Gas Struts
I think on cars they design the charges so that their life equals /exceeds the anticpated life of the car..on aircraft, in part because they operate longer and its all super safety orientated they replace them typically around the 10-12 year mark..
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is
A very modified Atacama Yellow 35is
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Bonnet Gas Struts
Er no..although they may be better off than if you had mowed them down at the same speed in an old Land Rover!ihadablackdog wrote: ↑Tue Nov 09, 2021 6:05 pm What is active pedestrian protection? Does it mean you can mow down pedestrians and they will be ok?
Small explosive charges at the rear of the bonnet pop the bonnet up in the event of a prang..raising the bonnet to act as a deformable area to take some of the G loading and spread the impact load..improving pedestrian survivability.
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is
A very modified Atacama Yellow 35is
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Bonnet Gas Struts
Or in 'layman's talk'; it helps scoop people back onto the road in front to save them from damaging the windscreen.
All good things come to those who wait. I'm really impatient which explains a lot.
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
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OnlineArgyll Andy
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Bonnet Gas Struts
Peter, Arnold said he had these as an advisory on his last MOT, carried out by BMW of course so could be a £££ making advisory
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G29 M40i Misano Blue all option packs (Gone 26k of fun)
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Bonnet Gas Struts
They may survive the initial impact courtesy of the BMW boffins intelligent design, but would quickly be beaten to death after the owner discovers the damage caused to the sacrificial bonnetB21 wrote: ↑Tue Nov 09, 2021 6:17 pmEr no..although they may be better off than if you had mowed them down at the same speed in an old Land Rover!ihadablackdog wrote: ↑Tue Nov 09, 2021 6:05 pm What is active pedestrian protection? Does it mean you can mow down pedestrians and they will be ok?
Small explosive charges at the rear of the bonnet pop the bonnet up in the event of a prang..raising the bonnet to act as a deformable area to take some of the G loading and spread the impact load..improving pedestrian survivability.
Rob
e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
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Bonnet Gas Struts
Unless it is a requirement for the MOT (as it is in Germany as pointed out by RobbieZ4) I would leave them as they are until I notice that they aren't doing their job of springing the bonnet up when you open it.
2009 sdrive30i auto Sapphire Black / Coral Red
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Bonnet Gas Struts
I think this is one of those rare occasions (for me) where I would just let this service requirement pass me by..Argyll Andy wrote: ↑Tue Nov 09, 2021 8:26 pmPeter, Arnold said he had these as an advisory on his last MOT, carried out by BMW of course so could be a £££ making advisory
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is
A very modified Atacama Yellow 35is
- B21
- Lifer
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- Joined: Tue Oct 05, 2021 7:15 pm
- Location: In my Banana Yellow Space Shuttle...somewhere over Southern Caledonia
Bonnet Gas Struts
Quite so…I had a slightly similar situation many years ago where a person with his back to a zebra crossing turned around and without looking walked onto the zebra as I was already moving slowly across it in stop / start traffic..Smartbear wrote: ↑Tue Nov 09, 2021 8:47 pmThey may survive the initial impact courtesy of the BMW boffins intelligent design, but would quickly be beaten to death after the owner discovers the damage caused to the sacrificial bonnetB21 wrote: ↑Tue Nov 09, 2021 6:17 pmEr no..although they may be better off than if you had mowed them down at the same speed in an old Land Rover!ihadablackdog wrote: ↑Tue Nov 09, 2021 6:05 pm What is active pedestrian protection? Does it mean you can mow down pedestrians and they will be ok?
Small explosive charges at the rear of the bonnet pop the bonnet up in the event of a prang..raising the bonnet to act as a deformable area to take some of the G loading and spread the impact load..improving pedestrian survivability.
Rob
They literally fell across the bonnet and put a big dent in it (TR7)..
Trying to explain that away took some doing…
We choose to go to on with this endeavour at this time and do the other things, not because they are easy, but because they are hard…
A very modified Atacama Yellow 35is
A very modified Atacama Yellow 35is
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- Lifer
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Bonnet Gas Struts
+1 on that.Silverstar wrote: ↑Tue Nov 09, 2021 9:40 pm Unless it is a requirement for the MOT (as it is in Germany as pointed out by RobbieZ4) I would leave them as they are until I notice that they aren't doing their job of springing the bonnet up when you open it.
All good things come to those who wait. I'm really impatient which explains a lot.
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!
F31 320i. Good car.
E89 20i Now fully dried
Z3 'free litre'. Project and a half. Complicated!
Mazda3 sold
Tatty old R56 Mini Cooper. Money pit!