Hi guys,
It seems that a lot of range rover sports L320 suffer from instrument cluster failure that causes the radio, blowers and sat nav to shutdown while driving and also show hazard lights on. It also causes the car to not start showing HDC fault, park brake fault, and other random faults.

Has anybody here had the courage to open an instrument cluster and see what exactly goes wrong that can cause this failure? If anybody has had luck opening one up and see anything suspicious would be great to know. There are so many cases like this all over the web that surely somebody would be able to write a HOW TO guide. 2008 Range Rover Sport 2.7 SE Zermatt Silver.

I think someone on the disco 4 site fixed theirs when they found dry joints to some of the soldered components. Not sure if that is the fault you refer to though. 2012 5.0 SC AB
Mods:
TPMS
Genuine LR DRLs
Remote Boot close from key fob
2016 Discovery 4 Mirrors AKA RRS2
2014 L405 Surround Camera retro fit (WIP)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE
2014 LR4 Homelink
2016 FFRR Electrochromatic Wing Mirror Glass

70 plate Focus ST (Current)
1942 VEP Ford GPW Jeep (Willys) (Current)
1943 Whites M16 Halftrack (Current)
16 plate Eurofighter Typhoon, 2 x Eurojet engines with 20,000lbs thrust each. 1380mph

Yes, that's the rumour dry joints, but I wouldn't know where to look. If everybody is having similar issues it must be on the same components. The question is which ones. 2008 Range Rover Sport 2.7 SE Zermatt Silver.

I found a Russian site with more info about the instrument cluster. Unfortunately it is in Russian.

https://www.drive2.ru/b/499836887549084441/ 2008 Range Rover Sport 2.7 SE Zermatt Silver.

Try this

https://disco4.com/forum/instrument-cluste...ht=Cluster

This tells you where to look on the board

https://disco4.com/forum/instrument-cluste...ht=Cluster 2012 5.0 SC AB
Mods:
TPMS
Genuine LR DRLs
Remote Boot close from key fob
2016 Discovery 4 Mirrors AKA RRS2
2014 L405 Surround Camera retro fit (WIP)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE
2014 LR4 Homelink
2016 FFRR Electrochromatic Wing Mirror Glass

70 plate Focus ST (Current)
1942 VEP Ford GPW Jeep (Willys) (Current)
1943 Whites M16 Halftrack (Current)
16 plate Eurofighter Typhoon, 2 x Eurojet engines with 20,000lbs thrust each. 1380mph

I have a feeling unless you are seriously into your electronic repairs I would leave it to the professionals as you could easily make it ten times worse. There are companies out there that specialise in repairing these units for around the £150 mark,,, remove the unit, post it to them and they will turn it round in a day or 2,,,, unless you are local to them as some offer a workshop service whereby they remove the unit as well.
I'm sure one outfit was call totaltronics,, or something similar, I would Google " instrument cluster repair " and see what you get. 2010 RRS, TDV8
bali Blue / colour coded
side steps / flappy paddles
black perforated leather
22" overfinch
heated everything, TV,fridge ...... now with gold calipers and mud flaps !( black mud flaps that is) !!
Many years ago,,,,, 1955 series 1 landie , sometimes wish I had kept it

it is good advice that.

The circuit board is complex with fine pitch solder connections.

And what with the dash containing the imboliser key, think carefully of the way forward

I solved the problem with a cheaper alternative.

I did think it was a specialized job but the quotes I received to get it repaired were all between £200 and £260 plus I had to have no car for 5 days, which in my case it is a problem as it is my main and only car.

So I decided to translate the Russian website I mentioned earlier which basically says to reflow a couple of IC's (IC10 and 64F2638F20) which made me think that a local PCB assembler should have the right equipment and personnel to do it within an hour. So what I did was to take the cluster out, walk to my local PCB assembler and showed them the two ICs that needed reflow, one hour later I had my cluster back. Reinstalled it and 2 weeks later the problem never reappeared.





 2008 Range Rover Sport 2.7 SE Zermatt Silver.

Glad you've got it sorted,,, definitely was a good idea getting a professional to carry out the work. 2010 RRS, TDV8
bali Blue / colour coded
side steps / flappy paddles
black perforated leather
22" overfinch
heated everything, TV,fridge ...... now with gold calipers and mud flaps !( black mud flaps that is) !!
Many years ago,,,,, 1955 series 1 landie , sometimes wish I had kept it

thanks for the feedback

Great news! A handy tip for others  Kev

MY2014 L405 RR Vogue SE 4.4 SDV8 in Corris Grey
MY2010 L320 RRS HSE 3.0 TDV6 in Stornoway Grey

Is this the issue that causes the Hazards to flash, doors to lock and fault codes 'vehicle lean when cornering','HDC Fault', 'Parking break fault,'ABS Fault'.
I have fault codes that link to communication with instrument cluster and Body control module. I am also currently sorting out the sunroof drain leak onto cables so drying all this out but think I will try this next if this relates to the issues im having

I had all those symptoms except 'vehicle lean when cornering' and 'ABS fault'. I don't have a sunroof tho but technician said could have been a leak. Looked for leaks but found nothing. Cluster was my only option at the end. And it was the cluster.  2008 Range Rover Sport 2.7 SE Zermatt Silver.

As an electronics engineer I would certainly reflow the connectors, as vibration often causes problems there, but I'd be surprised if the two IC's needed reflowing.
(I'm not saying they don't particularly need it, if someone has done some in-depth anaylsis, just that I'm surprised.)