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Discussion Starter #1
So I'm pretty convinced that my 06 is showing an error message because of a bad drier. I bought the parts (drier, valve, relay) but haven't installed them yet. I am aware the software should be updated as well. I talked to the dealer and they said that the software is now outdated so it would be better off just getting a brand new compressor (of course they would say that). Any advice? Can't afford a new compressor + software update (~$800-1000) right now. Thanks!
 

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LIFETIME CONTRIBUTOR
2006-2009 Range Rover Sport
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If you get a new compressor (the "old" Hitachis from MY06-11s are being replaced by AMK units introduced on MY2012s if and when they fail, which also requires a completely new bracket and new housing to be mounted under the chassis), a software update is mandatory, as you will get faults when running the new compressor with software designed for the older one. If you are just replacing parts on an existing, working compressor, I don't see why you'd need to update your software. The dealer probably has the software for the new compressor only in its diagnostic program, that's why they are recommending a whole new compressor as well. Start with replacing the parts and the compressor relay (that's very important as the relay may be causing your issues to begin with), you should be OK with your current software. If you do replace compressor, the new unit will look nothing like the old one and will come as a retrofit kit inclusive of new bracket, housing and pipe fittings, and you will definitely need the dealer to update the software as well.
 

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Discussion Starter #3
Great news! I was just assuming, since that's what it said in the technical bulletin. I guess that is only if-needed. Thanks!
 

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2006-2009 Range Rover Sport
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I will say that the replacement air supply unit is probably worth the expense if your older pump can not be repaired, because it is definitely a design improvement. It lays over - rather than hanging from - a new aluminum bracket on rubber shocks, the design minimizes vibrations and the unit runs quieter as a result. The new plastic housing has no inner sound insulation applied anymore, as it's not needed. The body is better protected from accidental penetration of rocks and stones (it's still not designed to withstand the weight of the car though, so watch where you put that floor jack...) And, because of the sturdier bracket and lessened vibrations, the unit is likely to last longer as well IMHO.

Photo of the new AMK unit, bracket and lower cover from my 2013 LR4. I was getting fitted for rock sliders so I got a good look at it:

compressor1.jpg compressor2.jpg alubracket2.jpg cover1.jpg
 

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2006-2009 Range Rover Sport
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Btw there's a write up on the UK site on the swap. For whatever reason he says the new one works w/o a software update.

http://www.rrsport.co.uk/forum/topic28349.html

Also, I think LR and Hitachi did us a disservice not making a drier change easy and part of a regular maintenance schedule. I think the older compressor would last longer if the drier were replaced occasionally. I'd be curious to know if the new drier is easier to replace, if not, we may be faced with the same longevity issue.
 

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2006-2009 Range Rover Sport
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FYI, this Special Service Message was recently released by LR.

Reference SSM63937
Models LR4 / L319
LR3 / L319
Range Rover / L322
Range Rover Sport / L320
Title AMK Compressor Installation
CategoryChassis
Last modified11-Mar-2013 00:00:00
Symptom304000 Suspension System
ContentIssue:
AMK Compressors suspected as being faulty after a recent replacement from Hitachi to an AMK compressor. The customer may experience an intermittent fault resulting in the air suspension warning lamp being illuminated. Fault code fault code C1A36-01 may also be present.
Cause:
New AMK software not being installed when a new compressor is fitted.
Action:
Where a vehicle is found to be within the VIN range of Technical Service Bulletins LTB00420v2 or LTB00452v2 it is imperative that when replacing an air suspension compressor the software is updated.
For vehicles outside of warranty and when selling a compressor kit over the counter please make the purchaser aware that there is software required. Once the compressor is fitted to the vehicle they would need to bring the vehicle back in for the software download.
 

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2010-2012 Range Rover MkIII / L322
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If you are replacing your air pump with a new one of the same type, is a software update nessesary?
 

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2006-2009 Range Rover Sport
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Probably not, but it may be a moot point by now. Land Rover is supplying the new AMK pump (as a kit) only, even when ordering the old part number.
 

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2010-2012 Range Rover MkIII / L322
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Reason I asked is I have a spare. It the updated version of the same type pump.
 

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I have just had my compressor replaced with the new one, a lot quieter and faster.
Cost me $1000 Au supplied and installed with new relay and software update.
I still think I have a leak as I left it at normal height with door open and front dropped to access height over night.
Where should I start looking?
Cheers.
 

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2006-2009 Range Rover Sport
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Thanks Goose, after reading the write up I feel like your avatar! :confused:
 

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2006-2009 Range Rover Sport
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1 Posts
Hey guys! Im new to the site but am loving all the info here...i'm replacing my eas with the updated kit this week anyone know how much the dealer is getting for the software update after install?
 

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2006-2009 Range Rover Sport
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140 Posts
so, i just had the new AMK compressor put on my '07 sport; covered under my third party warranty. I have a set of those awesome Rover Specialists rock sliders. Dealer states that the sliders will not fit back on because the new compressor hangs lower????. But they also won't put the sliders back on w/o the compressor cover (warranty issue). anyway, I was wondering if the sliders will fit if I remove the cover as with the original installation or will I have to get the sliders modified?
 

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2006-2009 Range Rover Sport
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Getting a modified air pump bracket from the guys at Tactical 4x4 will lift the AMK compressor a bit (their bracket is made of thinner stainless steel and relocated bolt holes so it will "lift" the unit up about 1/2 - 3/4" compared to the OEM aluminum bracket, see photos below and compare them with the ones of the original setup I posted above.) Probably still not enough to completely clear your RS sliders though, even without lower cover which you would lose anyway, no big deal as the cover really doesn't do anything other than muffling the sound a little. Ultimately, you may need to get your sliders modified just a tad by a capable welder. Even though the sliders may well bolt up without lower cover and with the new bracket, any contact between sliders and bracket would generate quite a racket in the car when the compressor is running.
 

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2013-2015 Range Rover Sport
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Hi everyone,

I am just about to install the new AMK compressor to replace a faulty Hitachi one. I was thinking of replacing the components myself, for then to drive the vehicle to the main dealer and get them to update the software. Will this be possible, or can I risk the new AMK not working with older software?

Any thoughts?

Regards,
Sean
 

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Premium Member
2006-2009 Range Rover Sport
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5,175 Posts
Hi Sean,
Please check out the Sticky for some tips on this.
 

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LIFETIME CONTRIBUTOR
2006-2009 Range Rover Sport
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11,013 Posts
Hi everyone,

I am just about to install the new AMK compressor to replace a faulty Hitachi one. I was thinking of replacing the components myself, for then to drive the vehicle to the main dealer and get them to update the software. Will this be possible, or can I risk the new AMK not working with older software?

Any thoughts?

Regards,
Sean
Sean, that's exactly how Land Rover recommends DIYers do it, install the compressor and then visit a dealer to update the EAS module software from Hitachi to AMK. The AMK will work with the older software, but not as well as it should. So, the sooner you get it done after swapping units, the better. If you own an IIDTool, the capability of re-flashing the module with the correct software is now included within the tool.
 

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2006-2009 Range Rover Sport
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4,478 Posts
You'll have to modify the sliders or that vibration against the slides will drive you nuts...a friend with an LR3 has the same situation as you, and he's going to have to cut a hole in the sliders and weld a portion that hangs a bit lower to eliminate the vibration...it's quite irritating!
 
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