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Mariana Black



Member Since: 30 Jul 2014
Location: Stockton-on-Tees
Posts: 89

England 2014 Range Rover Autobiography TDV6 Mariana Black
Air Suspension Compressor Blocked - Q590

Hi
Just wondered if anybody else has had or knows about the "Service Action" that is needed for the Ranger Rover and Range Rover Sport vechicles.

I have just had mine for its 2 year service and I saw on the TOPix site that this was needed. I contacted Jaguar / Land Rover and quoted my vin number and I had confirmation back that is it on the recall.
It is not dangerous but could affect the air suspension . The action is referenced as publication no. Q590

"At the next service opportunity you are requested to inspect air suspension compressor - if no white resddue is coming from the exhaust silencer replace air susoension sintered silencer and update software. If white residue is visible replace compressor and update software."

Anybody had this carried out or know anymore infomation

Thanks
Mariana Black

2014 Autobiography 3.0

Post #408862 11th Oct 2016 7:58pm
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Mikey



Member Since: 10 Jan 2008
Location: Dundee
Posts: 1685

Scotland 

Nice to see they learned their lessons from way back in 2006... Rolling Eyes

Post #408883 11th Oct 2016 8:56pm
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carlos50



Member Since: 03 Feb 2011
Location: North England
Posts: 717

United Kingdom 2015 Range Rover Autobiography 5.0 SC V8 Santorini Black

Anyone know the chassis range for the L494 please? Got this exact issue with a recently purchased SVR that throws the amber warning and locks out the height adjust, diagnosed as a blocked silencer

Post #535515 26th Nov 2019 1:59pm
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brad s1



Member Since: 23 Sep 2008
Location: Boston
Posts: 134

2004 Range Rover HSE 4.4 V8 Giverny Green

That is an issue with the air dryer allowing moisture to pass through the system and clog up the exhaust. Remove the silencer and replace the drying material, replace the silencer. I haven't looked at the compressor on my 405 yet, but this was the process on the l322. Replacing the entire compressor may not be necessary.

Post #535555 26th Nov 2019 7:54pm
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carlos50



Member Since: 03 Feb 2011
Location: North England
Posts: 717

United Kingdom 2015 Range Rover Autobiography 5.0 SC V8 Santorini Black

Do you have any instructions please, which bit is the air dryer, the bung in the line?

Post #535556 26th Nov 2019 8:04pm
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roberlar



Member Since: 16 Feb 2019
Location: Buckinghamshire
Posts: 203

United Kingdom 2013 Range Rover Autobiography SDV8 Santorini Black

I've always thought the ride quality in my L405 is nothing better (indeed probably worse) than your average car. Never had any suspension warnings crop up, and the strange thing is, at times I think it rides reasonably well, but other times every pothole and drain cover I drive over is a major obstacle. I'm on 22 inch wheels which doesn't help, none the less it ought to be better than it is. Any thoughts ?

Post #535557 26th Nov 2019 8:11pm
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brad s1



Member Since: 23 Sep 2008
Location: Boston
Posts: 134

2004 Range Rover HSE 4.4 V8 Giverny Green

I have not looked at the l405 setup, but on the l322 it was a canister fit to the side of the compressor... it removes moisture being drawn into the system and again before air is vented to atmosphere. When it begins to fail it'll allow moisture into the system resulting in the vent spitting liquid and then eventually clogging to the point suspension commands to lower fault. Again... not sure how it is exactly setup on the l405 but it cannot be too much different. There still must be an air dryer and exhaust somewhere on the compressor unit.

Post #535558 26th Nov 2019 8:13pm
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brad s1



Member Since: 23 Sep 2008
Location: Boston
Posts: 134

2004 Range Rover HSE 4.4 V8 Giverny Green

roberlar wrote:
I've always thought the ride quality in my L405 is nothing better (indeed probably worse) than your average car. Never had any suspension warnings crop up, and the strange thing is, at times I think it rides reasonably well, but other times every pothole and drain cover I drive over is a major obstacle. I'm on 22 inch wheels which doesn't help, none the less it ought to be better than it is. Any thoughts ?


That is because of the 22" wheels, they have no business being on an suv. If you drop down to a 20 it'll ride more like a range rover should.

Post #535559 26th Nov 2019 8:16pm
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roberlar



Member Since: 16 Feb 2019
Location: Buckinghamshire
Posts: 203

United Kingdom 2013 Range Rover Autobiography SDV8 Santorini Black

I suspect you're right. My previous 322 was a much smoother ride on smaller wheels. Bought the 405 with the 22's so maybe a change is the solution. I ought to drive some different combinations to see.

Post #535562 26th Nov 2019 8:28pm
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GGDR



Member Since: 26 Nov 2016
Location: London
Posts: 3517

United Kingdom 2011 Range Rover Vogue SE TDV8 Stornoway Grey

L322 rides better because heavier?

Corners worse but possibly rides better.
. Cheers, Greg
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
2011 Vogue SE 4.4 with lots of toys in Stornaway

Post #535580 26th Nov 2019 10:34pm
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brad s1



Member Since: 23 Sep 2008
Location: Boston
Posts: 134

2004 Range Rover HSE 4.4 V8 Giverny Green

My 405 with 20's rides better than my l322 did with 20's. I never put 22's on the l322 but I'd imagine it'd ride like crap with them.

Post #535590 27th Nov 2019 3:25am
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