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Back end collapsed


Sgc22

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1 hour ago, Sgc22 said:

Hi,

 

was out and just went back to the car and the back end is sitting on top of the wheels.

waiting on the aa picking me and towing me home, no idea where to take it at this time of the year near Cumbernauld just outside Glasgow.

Do a search here, very common for failures of the rear suspension airbags, solenoid and/or compressor.

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2 hours ago, Sgc22 said:

no idea where to take it at this time of the year near Cumbernauld just outside Glasgow.

Plenty of BMW specialists in Glasgow if you search.

Can only recommend BMW dealer Harry Fairbairn which is Arnold Clark now, in Giffnock (Southside of Glasgow)

Do not and I repeat do not go to any branch of Douglas Park BMW. 

The saggy F11 backend is a common complaint and this forum has its fair share of victims of that complaint but also fixes. 

Can you hear the compressor run?

Check its fuses and relay which can get water damaged and thus cut out and gravity takes over. It’s in the battery boot well. 

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  • 2 weeks later...

So an update, car was lifted taken to lawsons autotech in larbert and the guy who moved it on his trailer called me to say that he delivered the car and as he unloaded it the suspension lifted of its own accord.

awaiting diagnosis tomorrow now.

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This happened to mine once and never did get to the nottom of it. However I did wonder if it was because I had been out to the car to move it a small distance, and if the compressor was working to raise the rear suspension because it had dropped overnight AND I then switched the car off while the compressor was still woking would this leave a valve open causing it then to slowly drop?

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So it’s both real level sensor link rods which have seized.

 

there has been water in the boot previously but it’s dry and the Relay is fine and the compressor is also good.

 

cost is £193 plus initial diagnostic cost.

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8 hours ago, Sgc22 said:

there has been water in the boot previously but it’s dry

If water has got in, it's likely to find it's way back it.  It's a bit pesky in that department.

Make sure it stays out.

But thanks for coming back on to share the solution.

@VPCAPTAIN, worth checking on your F11.

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  • 3 weeks later...
On 08/01/2024 at 11:38, Sgc22 said:

So it’s both real level sensor link rods which have seized.

 

there has been water in the boot previously but it’s dry and the Relay is fine and the compressor is also good.

 

cost is £193 plus initial diagnostic cost.

I’m wondering if I have a similar problem. Replaced the compressor not just the solenoids and some times the car stays up for days and others it drops. It’s the same both sides and doesn’t seem like an airbag leak. Is replacement of these parts a diy job - they’re cheap to buy?

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On 24/01/2024 at 20:35, therealmc said:

I’m wondering if I have a similar problem. Replaced the compressor not just the solenoids and some times the car stays up for days and others it drops. It’s the same both sides and doesn’t seem like an airbag leak. Is replacement of these parts a diy job - they’re cheap to buy?

I have no mechanical skills whatsoever so no idea if it’s diy but the parts weren’t expensive 

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  • 3 weeks later...

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