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
Notices

Reply
 
Thread Tools Display Modes
Old 8th February 2021, 14:43   #31
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: 20,344
Thanks: 1,587
Thanked 3,749 Times in 3,181 Posts
Default

Martin,

Has your ZTT got a key barrel in the tailgate?

Simon
__________________
"Whatever is rightly done, however humble, is noble."
Sir Henry Royce.
SD1too is offline   Reply With Quote
Old 8th February 2021, 15:24   #32
sewerman
Gets stuck in
 
MG ZT+ CDTi

Join Date: Feb 2014
Location: Wolverhampton
Posts: 632
Thanks: 166
Thanked 264 Times in 154 Posts
Default

Quote:
Originally Posted by SD1too View Post
Martin,



Has your ZTT got a key barrel in the tailgate?



Simon
Simon
Sadly tourers were never fitted with this option ( im assuming its a tourer from the ZTT reference )


Sent from my SM-G977B using Tapatalk
sewerman is offline   Reply With Quote
Old 8th February 2021, 17:04   #33
edwardmk
Gets stuck in
 
edwardmk's Avatar
 
MG ZT 260, Rover 75 Connie SE auto

Join Date: Feb 2013
Location: Redruth
Posts: 984
Thanks: 1,324
Thanked 399 Times in 271 Posts
Default

Quote:
Originally Posted by SD1too View Post
Martin,

Has your ZTT got a key barrel in the tailgate?

Simon
I was hoping I might have a key option on the tailgate, but can confirm that Scott seems to be right. Not present on mine unfortunately.
edwardmk is offline   Reply With Quote
Old 8th February 2021, 18:34   #34
edwardmk
Gets stuck in
 
edwardmk's Avatar
 
MG ZT 260, Rover 75 Connie SE auto

Join Date: Feb 2013
Location: Redruth
Posts: 984
Thanks: 1,324
Thanked 399 Times in 271 Posts
Default

So the summary so far is I've confirmed the battery is pretty flat. Pin 9 on the tow socket is definitely connected to the battery. As the charge builds up via the tow socket above 2v, then the alarm goes off, but pressing the key fob doesn't reset the alarm at that low voltage. If I disconnect the charger the alarm stops , but the battery goes flat again. No manual key option except the driver's door which doesn't work, most likely a broken or disconnected cable.
Main take away for me.
Check your manual key is working normally, because you really really need it if you lock the car and the battery goes flat
edwardmk is offline   Reply With Quote
Old 8th February 2021, 18:47   #35
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

It really doesn't matter about the condition of the battery. As long as you have the feed from another battery to the positive lead on your existing battery. ( the one under the bonnet. ) and an earth to the car the doors should open immediately.
Could easily be the tow-bar socket has a poor connection somewhere.


( Oooops. My blue printing has disappeared.----)
COLVERT is offline   Reply With Quote
Old 8th February 2021, 18:48   #36
Rick-sta
This is my second home
 
Rick-sta's Avatar
 
MG ZT 2.0 CDTI+ in Typhoon, MG TF 135 in Typhoon & Rover 75 Connoisseur CDTI SE in Pearl Black

Join Date: Oct 2012
Location: Norfolk
Posts: 7,534
Thanks: 2,718
Thanked 2,827 Times in 1,462 Posts
Default

sounds like the only option is to pop the driver's wheel and wheel arch off and get to the bonnet cables to open the bonnet.

or... can the starter motor on a v6 be accessed from under the car with the undertray off? possibly use that to get power to it?
__________________
How to retrofit Cruise Control on a diesel with no OEM wiring in place: Link
How to retrofit heated electric memory seats with no OEM wiring in place: Link
How to operate FBH and ATC via text Link
How to restore cloudy projector headlights Link
Rick-sta is offline   Reply With Quote
Old 8th February 2021, 18:55   #37
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 edwardmk View Post
So the summary so far is I've confirmed the battery is pretty flat. Pin 9 on the tow socket is definitely connected to the battery. As the charge builds up via the tow socket above 2v, then the alarm goes off, but pressing the key fob doesn't reset the alarm at that low voltage. If I disconnect the charger the alarm stops , but the battery goes flat again. No manual key option except the driver's door which doesn't work, most likely a broken or disconnected cable.
Main take away for me.
Check your manual key is working normally, because you really really need it if you lock the car and the battery goes flat
The charge doesn't have to build up. The moment you connect the auxiliary battery you will have 12 plus volts in the system. ( assuming the pin you have chosen is the permanent live pin. )

Maybe standing close to the car and operation the key a number of times might make it work. This sometimes makes the car and key talk to one another. ( Do this with power to the trailer socket. )
COLVERT is offline   Reply With Quote
Old 8th February 2021, 19:01   #38
edwardmk
Gets stuck in
 
edwardmk's Avatar
 
MG ZT 260, Rover 75 Connie SE auto

Join Date: Feb 2013
Location: Redruth
Posts: 984
Thanks: 1,324
Thanked 399 Times in 271 Posts
Default

Hi Rick,
I'm thinking that even if I get the undertray off and can get a lead on the starter motor, I'm going to just set off the alarm again so before I get enough charge into the battery I could be listening to the alarm for a while. If it was parked in the garage I could have shut the door on it and left it charging up until it hopefully responded to the key fob. Being outside it will attract too much attention to risk this

I favour wheel off and I see an access panel in the wheel arch. However, the cable isn't broken and is properly secured, so I'm not sure that getting access will allow me to do anything useful. If anyone has a secret trick that would be awesome

I'm starting to think I may have to break the window to get in
edwardmk is offline   Reply With Quote
Old 8th February 2021, 19:05   #39
FLYING BANANA
Moderator/Club Shop
 
FLYING BANANA's Avatar
 
MG ZT 1.8t+. No.3 of 4 in Sunspot Yellow & Ford Fiesta in Black.

Join Date: Aug 2010
Location: Rattler Farm
Posts: 22,555
Thanks: 9,270
Thanked 15,645 Times in 6,806 Posts
Cool

Are you in the AA or RAC or any other breakdown service? If so could they not help.
__________________


233,320. New rear tyres on order for BBB.

onen hag oll
FLYING BANANA is offline   Reply With Quote
Old 8th February 2021, 19:11   #40
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: 20,344
Thanks: 1,587
Thanked 3,749 Times in 3,181 Posts
Default

Quote:
Originally Posted by Rick-sta View Post
sounds like the only option is to pop the driver's wheel and wheel arch off and get to the bonnet cables to open the bonnet.

Quote:
Originally Posted by edwardmk View Post
I'm thinking that even if I get the undertray off and can get a lead on the starter motor ...
You won't be able to Martin. The starter motor on the KV6 is on top of the gearbox and you'd need to remove the air cleaner and battery to get to it.

As Rick says, your only option is to get access to the bonnet release cable.

Simon
__________________
"Whatever is rightly done, however humble, is noble."
Sir Henry Royce.
SD1too is offline   Reply With Quote
Reply


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 12:55.


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