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F11 rear suspension airbag repkacement

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Just had my MOT and passed but got an advisory on one of the rear susspension airbags being frayed. 

It’s not leaking and is functioning correctly but it sounds like it’s going to need replacing something in the future. 

 

Is this a difficult DIY job and if not what’s involved and is there any specialist tooling required?

whats the cost of the parts are there any other parts it’s worth considering doing at the same time?  I’m assuming if one is showing signed of wear the other will be similar so worth replacing as a pair. 

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Sounds like it's on its way out and yes logic dictates that t'other side won't be far away.

 

There are a few threads on here about replacing them.  Do a search and you should find the,

 

I could be wrong but but I don't think it's a big job once the wheels off. I'm sure boasts about it taking less than 30 mins per side have been made.

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Funnily enough, I just ventured out and noticed my near side rear dropped. It rose up again once the engine was started, but it seems from other threads it’s only going to get worse.

 

Mines a ‘64 plate, 42k and still under BMW warranty - does anyone know if the warranty will pick this up?

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Should do, plenty of guys on here have had them done under warranty.

 

I got a broken rear coil spring fixed under warranty on my F10; so a broken rear air spring on an F11 should be no different, except probably cheaper to fix as you don't need to take a strut out.

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1 hour ago, goram said:

Awesome. Cheers bud!

 

For clarity, I'm referring to BMW AUC warranty. 

 

Sorry , I see you already said that, hence edit! Should have gone to spec savers......

Edited by 535i Andrew

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One of the first jobs I needed to do on my F11 was a rear air spring, and I can confirm 30 minutes beginning to end. Minimal tools needed - I think it was a small spanner to undo the air line from the air spring thing. Everything else is manual (i.e. you use your hands). There is no need to access the air compressor if your current airbag is burst. If not you can choose to access the compressor to release the pressure from the suspension, or you can don the appropriate PPE & burst the bag.

Everything is visible and readily accessibly when you jack the car up & remove the wheel.

From memory:

  • Jack the car up & prop on an axle stand
  • Remove the wheel
  • Deflate airbag (if not already burst)
  • Twist to release the top of the bag (it only goes one way) & pull out
  • Undo air line
  • Replacing is the opposite, but manually pull the airbag into position so it sits tight on the base (having twist-locked it at the top)
  • Put the wheel back on etc, then start the car, the bag will inflate to the correct height

 

 

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On 18/10/2018 at 15:51, 535i Andrew said:

 

For clarity, I'm referring to BMW AUC warranty. 

 

Sorry , I see you already said that, hence edit! Should have gone to spec savers......

 

Well, I’ll find out for sure tomorrow, it’s booked in at Coopers!

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12 hours ago, goram said:

 

Well, I’ll find out for sure tomorrow, it’s booked in at Coopers!

 

I had both mine replaced by the BMW Mondial warranty. There was a bit of a quibble over the second airbag but it was changed in the end.

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