Car at dealers for two weeks

[Meccles]

My TDV8 Sport has been at dealers now for over two weeks "investigating" why battery goes flat at random intervals. To date, they advised that the new battery fitted about 5 months ago is faulty. They have replaced the main tailgate switch, plus at my insistence the upper tailgate switch. But, they think that the left rear door catch is faulty. This catch was replaced 3 months ago as it did not lock when car central locked. So is a new part. But, no parts available in Australia. And a delay getting them from UK. So for want of a door latch car is still at dealers:(:mad: Not impressed. And, to date in less than 1 year, car will have had 3 batteries, two left rear door latches, new bonnet latches. Plus rear tailgate latches. I mean I love the car to drive etc but this is painful

[Graeme]

two left rear door latchesI wonder if there's a switch wiring / connector fault.

[Meccles]

How to check/find out? I mean if the dealer with all their tools/software can't find it, me with a DSE multimeter would I imagine have little chance

[CaverD3]

You may have a better chance. Dealer is using diagnostics physical test may well find it. They should go back to the old fashioned method?

[trobbo]

hope they have given you a loan car...

[Meccles]

Funny how when I rang to let them know I was a) due back in 3 days and b) not happy and if either a loan car or my car wasn't on the drive my first visit was to the solicitors, voila! Part arrives, is fitted, and all is well, you can have your car back sir and it never once faulted while with us. Mmm.
What to say I have also been getting updated from LandRover customer relations also emailed advising part had arrived and car would be ready soon. So it is back running has new battery (3rd) new left rear door latch (second) tailgate lower main latch (dealer fitted) and upper tailgate switch (my choice). Lets see what happens.

[MR LR]

The car isn't parked near one of those 'smart' (though some would argue rather stupid) power metres is it, there was talk of these draining batteries.

Cheers
Will

[Meccles]

No it is parked in quiet isolated spot, If trees can drain it? Once also in Brisbane normal suburban address nothing unusual.

[Stuart02]

The car isn't parked near one of those 'smart' (though some would argue rather stupid) power metres is it, there was talk of these draining batteries.

Cheers
Will

/seriously/???

[Scouse]

If there's too much electrical interference around, then sometimes this won't let the car go into 'sleep' mode.
In sleep mode, everything shuts down. Before this mode, the car is expecting to be driven at any second & keeps a few things awake.

[Stuart02]

If there's too much electrical interference around, then sometimes this won't let the car go into 'sleep' mode.
In sleep mode, everything shuts down. Before this mode, the car is expecting to be driven at any second & keeps a few things awake.

Crikey - are there documented examples of this? Surely you'd have to park in a substation to get that kind of interference, and if so I'd be more worried about cancer than a flat battery! :D

[Scouse]

It's more telecommunication interference.
Even the humble D2 & P38s could be stopped by simply parking outside an Amcal chemist back in the 1990s. The barcode scanner was the same frequency as the alarm.

LR had to change the alarm frequency to get into a bit of 'clean' air.

[Stuart02]

There ya go...

[Meccles]

I hear you re the car going to sleep however where the fault has occurred has been at home, at random times, or once at another location, a nothing out of normal suburban address, where car has been many times before. So no real consistency with location, nor when it happens. I still think faulty switch/connection is more likely that shorts out, and again, car doesn't go to sleep. Battery drains right down I mean to less than 5 V, once it drops below about 10.5 the car goes crazy with lights flashing on/off etc. One thing we have noticed is that all stored phone numbers are lost, whereas all stored nav points are not. Go figure.

[Blknight.aus]

yep...

anything that transmists on the frequency of

the key fob
the alarm remote
the bluetooth
in some vehicles the reversing sensors

can cause it to do keep awake.

Once the battery voltage drops down to a certain level you'll get this wierdo thing happening where a bunch of stuff will power down and take load off of the battery, when the battery has a breather the voltage comes up, the items turn on and the battery voltage drops then they turn off again and that sucks the battery to death.