Disco 4 Engine System Failure Warning - beware!

**drivesafe** · 25th July 2011, 11:12 AM

Hi again uttanutta and thanks for the feedback.

What I have been observing over the last 2 or 4 years is that a number of LR vehicles were having low battery warnings and the likes until my isolator was fitted.

But, with 1 exception, within a week or two of the isolator being fitted, the problem messages stopped and did not return.

I think half of the low message problems stems from the type of cranking battery being used and the charging patens that are used.

Both by adding a second battery and he fact that my isolator does not turn off when the ignition is turned off, the isolator allows the auxiliary battery to maintain a decent charge in the cranking battery.

Not, this is only a theory but it is very coincidental that the problem vanishes at about the same time a DBS is installed.

**uttanutta** · 25th July 2011, 12:27 PM

mmmmmmmmmmmmmm .... interesting !!!

**Graeme** · 25th July 2011, 02:34 PM

Originally Posted by drivesafe

Both by adding a second battery and he fact that my isolator does not turn off when the ignition is turned off, the isolator allows the auxiliary battery to maintain a decent charge in the cranking battery.

This reminds me of the time my D4 had the CD player on with the driver's door being opened and closed over a period of a couple of hours. The 'low battery - start engine' message appeared after a while. Instead, I direct-connected my aux battery using the installed battery switch. My DBC is not a Traxide unit so it drops out almost as soon as the engine stops. Anyway, the warning message dissapeared and didn't return that session.

**clubagreenie** · 25th July 2011, 03:33 PM

Sounds like Tims got some work building upgrade kits for a LR recall notice before he starts his new job designing electronic systems for them.

**drivesafe** · 25th July 2011, 06:00 PM

Originally Posted by Graeme

This reminds me of the time my D4 had the CD player on with the driver's door being opened and closed over a period of a couple of hours. The 'low battery - start engine' message appeared after a while. Instead, I direct-connected my aux battery using the installed battery switch. My DBC is not a Traxide unit so it drops out almost as soon as the engine stops. Anyway, the warning message dissapeared and didn't return that session.

Thanks Graeme, that's the sort of info I need.

**tonys tank** · 11th August 2011, 11:09 AM

Originally Posted by tonys tank

I unhappily joined the "Engine system Failure" club yesterday.

towing my 3.2t boat along a flat road, accelarating from 80 to 100. D4 had just returned from a service in Perth that day. now on a tilt tray to be shipped back to Perth, mates Toyota had to tow the boat home (will be hearing about this for along time.

hopefully LRA will have an answer and my D4 back soon.

it took a local carrier 12 days to transport the D4 back to Perth and Landrover 12mins to fix the fault (PCM upgrade), D4 will be back tomorrow.
Must say Landrover supplied good service;
organised tilt tray pickup from side of road
shipped car to Perth
organised hire car in Karratha
shipping car back
hopefully the D4 will tow the boat well on Saturday

Bloody computers

**drivesafe** · 11th August 2011, 12:53 PM

Originally Posted by tonys tank

Bloody computers

Just out of curiosity, has anyone actually suffered some form of mechanical faults or damage, or have all the failures been software oriented?

**tonys tank** · 11th August 2011, 02:25 PM

no mechanical damage (todate 18mths) and the D4 spends quite a bit of time off road in the Pilbara (only software)

**Disco4SE** · 11th August 2011, 08:38 PM

All good with me too after 65,000Klm's.

**Graeme** · 11th August 2011, 09:02 PM

Originally Posted by tonys tank

it took a local carrier 12 days to transport the D4 back to Perth and Landrover 12mins to fix the fault (PCM upgrade), D4 will be back tomorrow.

Tony,
Did you try restarting when this happened?

Thread: Disco 4 Engine System Failure Warning - beware!

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