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 1st September 2020, 16:30   #1
geo.k23
Loves to post
 
geo.k23's Avatar
 
Rover 75 Tourer CDT

Join Date: Apr 2014
Location: Alexandria
Posts: 462
Thanks: 451
Thanked 30 Times in 30 Posts
Default BMW question need help

Hi all not a rover question so hope it's alright to post i have been using my Rover tourer every day now for the past couple of months my BMW x3 2.0d has been sat in the driveway all that time decided to take it out today battery was flat so gave it a jump start only drove a couple of miles when the abs light the handbrake light and the 4x4 light and the tire pressure light all came on but gave it a good run all the same seemed to run fine until i got to the house when the clunking started from the back end it seemed worse in reverse can anyone shed any light on the problem thanks in advance
geo.k23 is offline   Reply With Quote
Old 2nd September 2020, 08:54   #2
Sonic ZS
Posted a thing or two
 
Sonic ZS's Avatar
 
75 Conn CDT Tourer, 75 Conn SE V6, 75 Conn V6, 75 Conn CDTi Tourer, ZS 180

Join Date: Jan 2014
Location: Devon
Posts: 1,982
Thanks: 1,287
Thanked 963 Times in 534 Posts
Default

Based on that information, my guess would be the problems are linked to low battery voltage. Modern cars and their electronic systems are very susceptable. Try a spare battery or take yours out & slow charge it for a few days 'til it's showing around 12.6V, hopefully that might solve it
__________________
Sonic ZS is offline   Reply With Quote
Old 2nd September 2020, 11:58   #3
geo.k23
Loves to post
 
geo.k23's Avatar
 
Rover 75 Tourer CDT

Join Date: Apr 2014
Location: Alexandria
Posts: 462
Thanks: 451
Thanked 30 Times in 30 Posts
Default

thanks sonic zs that sounds very credible cheers
geo.k23 is offline   Reply With Quote
Old 2nd September 2020, 18:15   #4
Mickyboy
SERVICING AND DEALER DIAGNOSTICS
 
Mickyboy's Avatar
 
MG ZT CDTI 135 + & MGZT CDTI AUTO 160 & ROVER 75 TOURER CDTI 160 TROPHY YELLOW

Join Date: Aug 2013
Location: Hernebay
Posts: 4,331
Thanks: 818
Thanked 2,414 Times in 1,141 Posts
Default

When BMW’s start to Chuck warning lights after having a flat battery it’s normally a sign the battery is goosed, when replacing a bmw battery make sure you get it registered on a diagnostic machine
Mick
__________________
[SIGPIC][/SIGPIC]
T4 Owner
Jobs done : new UBP, Spy hole mod, Rear hub(wheel bearing),plenum cleaned and emptied, Inline thermostat fitted,Full service, In car Digital tv/DVD Bluetooth Satnav etc, Replaced UBP, Restored headlights,Fixed airbag connection.replaced HP pump,replaced rear light seals,changed intercooler O rings.

Jobs to do: ,replace drivers lock,.
[/SIZE]
Mickyboy is offline   Reply With Quote
Old 2nd September 2020, 18:39   #5
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 Mickyboy View Post
When BMW’s start to Chuck warning lights after having a flat battery it’s normally a sign the battery is goosed, when replacing a bmw battery make sure you get it registered on a diagnostic machine
Mick
Could you please explain a bit more about that Diagnostic Machine ??---
COLVERT is offline   Reply With Quote
Old 2nd September 2020, 19:07   #6
Jamiewelch
Posted a thing or two
 
Jamiewelch's Avatar
 
Alpina D3

Join Date: Sep 2014
Location: Cheslyn hay
Posts: 1,002
Thanks: 58
Thanked 294 Times in 227 Posts
Default

Quote:
Originally Posted by COLVERT View Post
Could you please explain a bit more about that Diagnostic Machine ??---
INPA or ISTA. Depends on the year and what you want to do. INPA was replaced by ISTA. The BMWs bump the voltage up when charging an older battery to extend the useful life. The IBS is known to cause some weird and wonderful issues.
Jamiewelch is offline   Reply With Quote
Old 2nd September 2020, 19:13   #7
ADO282
Banned
 
ADO282's Avatar
 
ROVER 75 Connoisseur

Join Date: Jul 2020
Location: BRACKNELL
Posts: 270
Thanks: 125
Thanked 130 Times in 92 Posts
Default

Quote:
Originally Posted by Jamiewelch View Post
INPA or ISTA. Depends on the year and what you want to do. INPA was replaced by ISTA. The BMWs bump the voltage up when charging an older battery to extend the useful life. The IBS is known to cause some weird and wonderful issues.
Ah yes, irritable bowel syndrome, weird and wonderful indeed !!


Do any of these things relate to our cars Jamie?, curious with the BMW links and underpinnings of the 75.






Chris
ADO282 is offline   Reply With Quote
Old 2nd September 2020, 19:14   #8
Jamiewelch
Posted a thing or two
 
Jamiewelch's Avatar
 
Alpina D3

Join Date: Sep 2014
Location: Cheslyn hay
Posts: 1,002
Thanks: 58
Thanked 294 Times in 227 Posts
Default

Quote:
Originally Posted by ADO282 View Post
Ah yes, irritable bowel syndrome, weird and wonderful indeed !!


Do any of these things relate to our cars Jamie?, curious with the BMW links and underpinnings of the 75.






Chris
Haha, nope they don't the BMW systems are far more intricate, the electrical systems in the 75 are actually very basic, they are a basically a very simplified E46 electrical system.
Jamiewelch is offline   Reply With Quote
Old 2nd September 2020, 21:28   #9
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 Jamiewelch View Post
INPA or ISTA. Depends on the year and what you want to do. INPA was replaced by ISTA. The BMWs bump the voltage up when charging an older battery to extend the useful life. The IBS is known to cause some weird and wonderful issues.
All these code letters are marvellous things but totally useless to most folks like myself.-- Now go stand in the corner and say to yourself--I MUST MAKE MYSELF CLEAR IN MY POSTS---



Bumping up the charging voltage will NOT EXTEND a batteries life. ( As BMW found out when they learnt a bit more about batteries. )

Last edited by COLVERT; 2nd September 2020 at 21:31..
COLVERT is offline   Reply With Quote
Old 2nd September 2020, 21:49   #10
Jamiewelch
Posted a thing or two
 
Jamiewelch's Avatar
 
Alpina D3

Join Date: Sep 2014
Location: Cheslyn hay
Posts: 1,002
Thanks: 58
Thanked 294 Times in 227 Posts
Default

Quote:
Originally Posted by COLVERT View Post
All these code letters are marvellous things but totally useless to most folks like myself.-- Now go stand in the corner and say to yourself--I MUST MAKE MYSELF CLEAR IN MY POSTS---



Bumping up the charging voltage will NOT EXTEND a batteries life. ( As BMW found out when they learnt a bit more about batteries. )
Haha, put simply its the BMW dealer diagnostic system, like the T4 was the Rover dealer diagnostic system.

Bumping the voltage up can potentially get some charge in an iffy battery, but it’s by no means something that should really be done. There’s more to the intelligent charging system than that though
Jamiewelch 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 15:49.


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