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Home > Technical > Flat battery, but no parasitic draw?
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Past master



Member Since: 30 Jun 2010
Location: Isle of Ely
Posts: 2710

United Kingdom 

Surprising how often the radio is the problem. It's not one of those clever ones that picks up and stores traffic reports while it's shut down is it? They're notorious. Ex AA Series III LWB Safari - Gone
300TDi Disco (bought new - terrible car) sent back after 18 months
Freelander 1 Estate - leased, given back at end of lease
200TDi Disco (bought from a mate with 100,000 on the clock) - Gone
Disco 2 TD5 - sold and exported to France
FR2 TD4 GS - Gone
FR2 SD4 HSE - Now changed for a DS
New model ex-demo Evoque S 180 in white
Unable to order a new DS, so gave up. Now have a Volvo S90 Recharge.

Post #225769 28th May 2014 10:29 pm
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Stowey2009



Member Since: 27 May 2014
Location: South
Posts: 33

United Kingdom 2007 Freelander 2 TD4 XS Auto Baltic Blue
Update

Draw eventually found from two sources. Keith got land rovers in hampshire very helpful in diagnosis.

1. Electric seat power control module

2. Head unit

Electric seat controls for the passenger seat not shutting down correctly keep battery saver relay in glove box open. When a new power control module sells for £900 the solution was to pull the connection from the passenger seat. Still considering a work around for this. May look to out in manual switch, 12v relay in line so only active when ignition on or leave as is and manualy plug cables back in when seat required to move.

Head unit and its myriad of wires. Due to aftermarket head unit, original pdc's would not have worked (unless appropriate adapter for head unit was used, in this case it has not been) so aftermarket canm8 parktones installed by previous owner. Wiring for these was incorrect, 12v ign on wired directly to battery cable to head unit meaning pdc's permanently wired to battery.

Monitoring the situation. All I can say is a Land Rover electrical problem is certainly not helped when incorrect wiring is done with aftermarket bits of kit.

Post #249157 17th Jan 2015 10:53 am
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ad210358



Member Since: 12 Oct 2008
Location: Here and There
Posts: 7464

England 

Mmm, aftermarket wiring, my lad has a Mini, wanted to connect his iphone to it to listen to his music, bought one of the adapters that you plug in line to the radio, involves unplugging they plug to the radio inserting the new plug then reconnecting his original plug in to it, you know the sort, worked like it should when listening to his music, only problem was it would not let his Mini go to sleep when he locked it, his battery would be dead flat in eight hours.

Post #249159 17th Jan 2015 11:15 am
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Stowey2009



Member Since: 27 May 2014
Location: South
Posts: 33

United Kingdom 2007 Freelander 2 TD4 XS Auto Baltic Blue

Dear all,

Thought it best to post that at long last i found (stumbled across more like) the solution to the battery drain.

Seems that with the car in Global opening mode the battery was draining overnight but in the default opening (single press on the fob to open drivers door and a second to open all) i can report that the car has been problem free.

Classic LR random electrical gremlin.

I have noticed that rear passenger side door central locking has failed, not sure if the two issues are connected, but haven't got around to changing it over.

Will post back when its serviceable and see if its made a difference. For now, happy, electrical filled Freelandering continues.

Post #285157 23rd Dec 2015 10:19 am
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RogB



Member Since: 16 Dec 2014
Location: Mansfield
Posts: 3880

England 2013 Freelander 2 SD4 HSE Lux Auto Santorini Black

I have literally just read that someone else on here has had multiple electrical issues, and one problem turned out to be the global opening function draining the battery.

the suggestion was to disconnect the battery and hard reset, leaving it disconnected for a good while before reconnecting ??

your rear door not working is either going to be the latch (classic problem) or the relay. if it sounds like the door is trying to unlock but then wont open its the latch, if it doesn't sound like its unlocking its more than likely the relay.

im not a mechanic or electrical guy in any way shape or form but those would be my best guesses based on what ive read on here

Post #285160 23rd Dec 2015 10:35 am
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Stowey2009



Member Since: 27 May 2014
Location: South
Posts: 33

United Kingdom 2007 Freelander 2 TD4 XS Auto Baltic Blue

Hi RogB,

Yea it may have been my suggestion as i saw that post. Disconnecting for a period of time (i too am not an electrician) resets the car to factory settings - windows and global opening.

Just checked out the latch, classic problem with the servo being lazy. Need to pull it out and either replace or lubricate as per others suggestions on here. A job left for when there's more warmth and light! Thanks for the advice.

Post #285211 23rd Dec 2015 6:07 pm
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RogB



Member Since: 16 Dec 2014
Location: Mansfield
Posts: 3880

England 2013 Freelander 2 SD4 HSE Lux Auto Santorini Black

I just skip through posts to see if there is any useful information for me, inbetween doing actual work in the office so it may well have been your suggestion that I saw briefly Laughing

hope you get it sorted now the solstice has passed and we have more daylight Whistle

Post #285282 24th Dec 2015 8:12 am
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Greybeard



Member Since: 10 Aug 2010
Location: E Sussex
Posts: 157

United Kingdom 2008 Freelander 2 TD4 GS Auto Zermatt Silver

Well, incredible. After reading this thread and feeling very smug because my battery had never gone flat in four and a half years of ownership, it did. The car had been standing for three days double locked as normal, and when I went to start it, it wouldn't even turn over. It's a new battery as well, about 3 months old now. The car has stood for many periods of three day and much longer in the past without any problems. The only thing I can think of is that I opened the boot a couple of days ago on the fob without unlocking the car. Of course the boot locks itself afterwards but I am thinking that the system did not shut down completely afterwards ie in effect, not double locked.

It's the only thing I can think of that could have caused the problem, so I wont be doing that again! Unlocking and relocking everything in future! Have I stumbled on a solution for some?

Post #285291 24th Dec 2015 10:42 am
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Past master



Member Since: 30 Jun 2010
Location: Isle of Ely
Posts: 2710

United Kingdom 

Greybeard,
I think you have correctly identified the problem. I had a flat battery once only on my MY07 and worked out that using the boot unlock button was the most likely cause. I speculate that this is designed to let you put the shopping in the boot or whatever before driving away, and that it does not instigate a full shut-down procedure even though the car appears to relock. I never used that button again and the problem never recurred. Ex AA Series III LWB Safari - Gone
300TDi Disco (bought new - terrible car) sent back after 18 months
Freelander 1 Estate - leased, given back at end of lease
200TDi Disco (bought from a mate with 100,000 on the clock) - Gone
Disco 2 TD5 - sold and exported to France
FR2 TD4 GS - Gone
FR2 SD4 HSE - Now changed for a DS
New model ex-demo Evoque S 180 in white
Unable to order a new DS, so gave up. Now have a Volvo S90 Recharge.

Post #285326 24th Dec 2015 6:00 pm
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Greybeard



Member Since: 10 Aug 2010
Location: E Sussex
Posts: 157

United Kingdom 2008 Freelander 2 TD4 GS Auto Zermatt Silver

Thumbs Up
Thanks past master. With two of us thinking that there must be something in it!

Post #285384 25th Dec 2015 1:17 pm
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