Go Back   The 75 and ZT Owners Club Forums > The 75 and ZT Owners Club Forums > Technical Help Forum
Register FAQ Image Gallery Members List Calendar Mark Forums Read
Notices

Reply
 
Thread Tools Display Modes
Old 17th January 2021, 15:55   #1
YorkshirePotter
Regular poster
 
Rover 75 2.0 CDTi, Rover 75 2.5 V6

Join Date: Jun 2012
Location: Keighley
Posts: 43
Thanks: 10
Thanked 1 Time in 1 Post
Default Flat Battery

Hope the wise owls can offer an opinion on this. After a recent cold snap 2 weeks ago, to my amazement both of my Rover 75's batteries were flat.
The 2.0 diesel has had issues previously and has had 2 new batteries in 6 months, the 2.5 V6 had a new Varta one no more than a year ago and up to now has had no issues.
Anyway after jump starting the pair of them a couple of times, I got Halfords to fit a brand new battery to the 2.5 on Monday night, drove home and it hadn't moved since, due to snow and ice in the last few days.
Went to start it up last night, and it's completely flat! In only 4 days!
Anyone got any idea if this is an issue with their cars, and what could have caused it?
Thanks in advance.
YorkshirePotter is offline   Reply With Quote
Old 17th January 2021, 16:03   #2
suzublu
This is my second home
 
suzublu's Avatar
 
rover 75 1.8 vvc club se wedgwood blue

Join Date: Aug 2009
Location: Seaton Carew
Posts: 26,880
Thanks: 65
Thanked 7,142 Times in 4,642 Posts
Default

Have you got sat nav in the boot?
suzublu is offline   Reply With Quote
Old 17th January 2021, 16:06   #3
bluemalbert
Avid contributor
 
bluemalbert's Avatar
 
MG ZT 190

Join Date: Apr 2016
Location: Heathrow
Posts: 166
Thanks: 109
Thanked 24 Times in 14 Posts
Default

Im guessing theres a draw on the battery when all is shut down, glove box light on? Boot light on? Interior light these are the obvious ones. Sat nav as quoted above still in semi shut off mode?
need to test id say, if the obvious drain isnt showing.
bluemalbert is offline   Reply With Quote
Old 17th January 2021, 16:11   #4
roverbarmy
This is my second home
 
roverbarmy's Avatar
 
Roverless + 1.7D Sportage

Join Date: Aug 2014
Location: East Norfolk
Posts: 7,022
Thanks: 729
Thanked 2,021 Times in 1,449 Posts
Default

Check that the plenum drains are clear (under the car, see by looking down the inspection holes under the wipers) See the how to's on the How to Page if you are not sure. Drowned electronics will allow tracking. Also check that doors, bonnet and boot switches are closing properly and not leaving interior lights running.
__________________
Oil in my veins!
roverbarmy is offline   Reply With Quote
Old 17th January 2021, 16:12   #5
YorkshirePotter
Regular poster
 
Rover 75 2.0 CDTi, Rover 75 2.5 V6

Join Date: Jun 2012
Location: Keighley
Posts: 43
Thanks: 10
Thanked 1 Time in 1 Post
Default

Well there were no internal lights on that I know of, as to the boot light I would have thought it is automatic, and I haven't tampered with anything. Yes i have a sat nav unit in the boot, I am having problems with the sat nav which I was suppose to meet with BigRuss about this last week before the snow put paid to my visit.
YorkshirePotter is offline   Reply With Quote
Old 17th January 2021, 16:16   #6
YorkshirePotter
Regular poster
 
Rover 75 2.0 CDTi, Rover 75 2.5 V6

Join Date: Jun 2012
Location: Keighley
Posts: 43
Thanks: 10
Thanked 1 Time in 1 Post
Default

I had the plenum drains cleaned out by my mechanic a month ago as I actually had water coming out from under the dash when going up hills at one point, it obviously hadn't been done for years (i've had it about 18 months).
YorkshirePotter is offline   Reply With Quote
Old 17th January 2021, 16:18   #7
suzublu
This is my second home
 
suzublu's Avatar
 
rover 75 1.8 vvc club se wedgwood blue

Join Date: Aug 2009
Location: Seaton Carew
Posts: 26,880
Thanks: 65
Thanked 7,142 Times in 4,642 Posts
Default

Chances are your sat-nav isn't turning off completely thereby draining your battery.
suzublu is offline   Reply With Quote
Old 17th January 2021, 16:30   #8
YorkshirePotter
Regular poster
 
Rover 75 2.0 CDTi, Rover 75 2.5 V6

Join Date: Jun 2012
Location: Keighley
Posts: 43
Thanks: 10
Thanked 1 Time in 1 Post
Default

Thanks for the help guys, maybe if I can get it to BigRuss this week as planned for the original reason, which was the sat nav not working properly, we can suss it out.
Ironic isn't it, the sat nav not working properly and that particular 'extra' could be what has killed everything!
YorkshirePotter is offline   Reply With Quote
Old 17th January 2021, 20:51   #9
SD1too
Doesn't do things by halves
 
SD1too's Avatar
 
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model.

Join Date: Mar 2007
Location: Former Middlesex
Posts: 20,265
Thanks: 1,587
Thanked 3,749 Times in 3,181 Posts
Default

Hi Paul,

What's the problem exactly with your sat. nav? With the ignition key in your hand and all doors and bonnet closed, open the boot and watch the little red LED on the disc drive. It should extinguish after a minute or so. If it doesn't, that could be the reason for the drain on your battery.

Having said that, batteries have to work hard in the winter and most of the time they're not fully charged. I checked mine this weekend and .... ahem ... quickly put it on charge overnight.

Simon
__________________
"Whatever is rightly done, however humble, is noble."
Sir Henry Royce.
SD1too is offline   Reply With Quote
Old 18th January 2021, 21:26   #10
COLVERT
This is my second home
 
R75 Saloon.

Join Date: Feb 2009
Location: France/or Devon.
Posts: 14,003
Thanks: 3,851
Thanked 2,167 Times in 1,816 Posts
Default

Quote:
Originally Posted by YorkshirePotter View Post
Hope the wise owls can offer an opinion on this. After a recent cold snap 2 weeks ago, to my amazement both of my Rover 75's batteries were flat.
The 2.0 diesel has had issues previously and has had 2 new batteries in 6 months, the 2.5 V6 had a new Varta one no more than a year ago and up to now has had no issues.
Anyway after jump starting the pair of them a couple of times, I got Halfords to fit a brand new battery to the 2.5 on Monday night, drove home and it hadn't moved since, due to snow and ice in the last few days.
Went to start it up last night, and it's completely flat! In only 4 days!
Anyone got any idea if this is an issue with their cars, and what could have caused it?
Thanks in advance.
Did you actually pay for all those replacement batteries. ( Just curious. )---Because it's now obvious that none of them were at fault.---
COLVERT is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 17:17.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © 2006-2023, The Rover 75 & MG ZT Owners Club Ltd