Discovery 3 suspension or possibly battery problem

**Bens** · 15th March 2015, 06:53 PM

Hi folks

I just joined ALRO after spending a few weeks reading the informative posts whilst trying to resolve an issue I have with my 2006 Discovery TDV6 SE. It has 200k kms and has a full service history.

I love these cars. I surf a lot, it is the perfect surf vehicle having given it a good run off road in northern NSW and its beaches.

However I am having quite a few problems trying to get my mechanic to fix a few issues. A new suspension kit (compressor?) has been installed when the car dropped to the ground on me but a day later the same HDC fault which indicates the suspension is faulty came on and the car lowers. I took the car back to the mechanic for the final time I will ask him to fix it and he said there was a voltage issue with the battery causing the problem. I collected the car Friday after he charged the battery and paid him again and the car failed Saturday.

My questions are as follows: any assistance is greatly appreciated as I have read a number of forums trying to find a solution to the problem

1. When the suspension was fixed should the relay have also been replaced?
2. Could a dying battery be causing this problem?
3. I have seen on a South African forum mention that rear bulbs blown can cause this problem, I have a dim rear right bulb. Could that be it?

I thought replacing the turbo 2 months ago was an annoyance, this problem is driving me spare :-).

Cheers Ben

**LandyAndy** · 15th March 2015, 07:05 PM

Welcome Ben.
Search Brake Switch to see if that is the issue.
Im sure plenty of help is on its way.
Goodluck
Andrew

**Graeme** · 15th March 2015, 07:21 PM

A HDC fault does not indicate that the suspension is faulty, indeed exactly the opposite. The suspension will lower for any fault reported by the brake system, including a blown stop light globe which is a very minor "fault". A failing wheel speed sensor will cause various braking system faults including HDC, ABS and TC. A failing compressor or other suspension system component will not trigger a HDC fault.

**Bens** · 16th March 2015, 06:31 PM

Thanks Graheme and landyandy

I have ordered a brake switch and bulbs. Will let you know how that goes.

Much appreciated

Ben

**sniegy** · 16th March 2015, 08:04 PM

Get your battery Load Tested. That will advise if your battery is good/bad.

Cheers

**Bens** · 23rd March 2015, 07:02 PM

Hey guys, the problem seems to be sorted! I had an issue with the car dropping right down and the dash telling me I had a hdc fault. LandyAndy and graham instructed me to investigate the brake system. I ordered and installed two rear brake light bulbs and a brake light switch from British off-road on the sunny coast. I installed the brake light switch using these instructions

DISCO3.CO.UK Photo Gallery - Brake Light Switch Replacement

Hope it's ok to reference another forum.

Problem has gone and I have done around 500kms.

Note I pulled a repco bulb out of one of my rear lights of the same voltage and wattage. Not sure if the resistance differs.

Anyway thanks a bunch guys for the help, so good to have my car back on the road.

**TerryO** · 24th March 2015, 04:56 AM

Out of interest did you go back to the mechanic that had wrongly diagnosed the problem twice and spent a lot of your money to no avail and ask him for recompense or at least a free oil change or similar?

**Redback** · 24th March 2015, 09:41 AM

Originally Posted by Bens

Hey guys, the problem seems to be sorted! I had an issue with the car dropping right down and the dash telling me I had a hdc fault. LandyAndy and graham instructed me to investigate the brake system. I ordered and installed two rear brake light bulbs and a brake light switch from British off-road on the sunny coast. I installed the brake light switch using these instructions

DISCO3.CO.UK Photo Gallery - Brake Light Switch Replacement

Hope it's ok to reference another forum.

Problem has gone and I have done around 500kms.

Note I pulled a repco bulb out of one of my rear lights of the same voltage and wattage. Not sure if the resistance differs.

Anyway thanks a bunch guys for the help, so good to have my car back on the road.

That's a great outcome Ben, my advice would be to take your car elsewhere in future, do a search on here for recommended mechanics in your area, you need to take these cars to Land Rover specialist only

Baz.

**Bens** · 24th March 2015, 07:42 PM

To be honest Terry I don't want to see him again. Have found another mechanic that knows the cars.

**NavyDiver** · 27th March 2015, 08:54 PM

Hi Bens

I would recommend removing the filament brake lights and replacing with LED as they never fail and never have in the five years since I replaced mine. In the prior few year suspension issues due to blown globes drove me nuts!

http://www.aulro.com/afvb/d3-d4-rrs/...l-blinker.html

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Discovery 3 suspension or possibly battery problem

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