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[Help] Car battery problem



Flounce

Well-known member
NSC Patron
Nov 15, 2006
5,062
If you have roadside cover and you're outside your house - then the AA (at least) will just come round, do a proper check and replace it there and then. They normally carry spare batteries in their vans - although their prices are higher than Halfords and local garages. They don't worry that your at your house.

My lad left the lights on all day a few months ago. We got it started again - after an AA start and then drove it home and kept the engine on for a while. It started just about ok after that but had problems with it ever since - ie: "sounded funny" ha ha. So just replaced it with a new one - at local garage up the way - not a problem since.
Do the AA still give 5 year guarantees? I have had a couple replaced by them at home over the years. Yes the prices are higher but the two were Bosch batteries and both are still working fine over 4 years later. The convenience of someone coming to your house and doing the work makes the higher price acceptable to me.

I was even mug enough to give them a cup of coffee and a tip :smile:
 




MJsGhost

Oooh Matron, I'm an
NSC Patron
Jun 26, 2009
5,103
East
Thanks for all the input...

Update:
The consensus seemed to agree that it was a faulty battery, so I bought one. For convenience and speed, I got one at Halfords, but in future (with more time to play with) I'll get a Bosch battery from Tayna (thanks @GOM)

I popped out to install the new battery in my lunch break today (I WFH) and it was the classic 5 minute job.

All seems well as it starts perfectly. However, I am now getting a load of faults flashing up - Tyre pressure system fault; Automatic Start/Stop system fault - system unavailable; Stabilisation control (ESC) fault; Hill hold assist unavailable...

I have reset the MMI system, but to no avail.

I guess this is why people use a garage even for simple maintenance - the follow-up glitches are a pain even for a minute job.

A scan online turns up info about tools that help register a start/stop battery (which mine is), so does anyone know if I'm stuck without that sort of thing, or will these gremlins go away after a good run out in the car?

THANKS!
 


GloryDays

Well-known member
Jul 5, 2011
1,758
Leyton, E10.
My battery died today. The AA man said of the 5 callouts before mine 3 of them were dead batteries. Mine was 10 years old tho, so didn't feel too bad. Just annoying that you only tend to find out when you need to do something with the car.
 


Elbow750

Well-known member
Jun 21, 2020
525
My battery died 18 months ago. Green Flag garage sent a great guy who diagnosed a broken internal connection. He got me home and returned 2 hours later with a new battery, £115 fitted. He also checked all my tyres, pointing out 2 were 5 years old and starting to craze on the sidewalls : potential MOT issues...

What was most impressive is he reset all tyre pressure monitors clocks and a bunch of other stuff. He even recalibrate the electric windows by running them up and down so they worked on one touch, something that often gets forgotten on changing a battery..

I gave him coffee and a tip.. no charge for the Green Flag call out.
 


Me Atome

Active member
Mar 10, 2024
135
Thanks for all the input...

Update:
The consensus seemed to agree that it was a faulty battery, so I bought one. For convenience and speed, I got one at Halfords, but in future (with more time to play with) I'll get a Bosch battery from Tayna (thanks @GOM)

I popped out to install the new battery in my lunch break today (I WFH) and it was the classic 5 minute job.

All seems well as it starts perfectly. However, I am now getting a load of faults flashing up - Tyre pressure system fault; Automatic Start/Stop system fault - system unavailable; Stabilisation control (ESC) fault; Hill hold assist unavailable...

I have reset the MMI system, but to no avail.

I guess this is why people use a garage even for simple maintenance - the follow-up glitches are a pain even for a minute job.

A scan online turns up info about tools that help register a start/stop battery (which mine is), so does anyone know if I'm stuck without that sort of thing, or will these gremlins go away after a good run out in the car?

THANKS!
Halfords would have fitted it for you.
 




matt

Well-known member
Mar 19, 2007
1,566
Halfords would have fitted it for you.
Depends which Halfords you go to. Halfords retail (no Autocentre) would sell me a stop/start but not fit it. They said I would need to book a slot at an Autocenter for fitting. I ended up using their mobile service which was pretty straightforward.
 


Whoislloydy

Well-known member
May 2, 2016
2,557
Vancouver, British Columbia
It could be a grounding issue, I had that problem on my camper conversion before Christmas. Battery was new, alternator was running at 14 volts but if i didn't drive the car for 7 days, it would be completely dead.
 


Flounce

Well-known member
NSC Patron
Nov 15, 2006
5,062
Thanks for all the input...

Update:
The consensus seemed to agree that it was a faulty battery, so I bought one. For convenience and speed, I got one at Halfords, but in future (with more time to play with) I'll get a Bosch battery from Tayna (thanks @GOM)

I popped out to install the new battery in my lunch break today (I WFH) and it was the classic 5 minute job.

All seems well as it starts perfectly. However, I am now getting a load of faults flashing up - Tyre pressure system fault; Automatic Start/Stop system fault - system unavailable; Stabilisation control (ESC) fault; Hill hold assist unavailable...

I have reset the MMI system, but to no avail.

I guess this is why people use a garage even for simple maintenance - the follow-up glitches are a pain even for a minute job.

A scan online turns up info about tools that help register a start/stop battery (which mine is), so does anyone know if I'm stuck without that sort of thing, or will these gremlins go away after a good run out in the car?

THANKS!
No idea what make of car you have but Xmas tree lights after a battery change are not unusual on some makes and sort themselves out on a decent length drive. 15 to 20 mins. Good luck
 




beorhthelm

A. Virgo, Football Genius
Jul 21, 2003
36,128
Thanks for all the input...

Update:
The consensus seemed to agree that it was a faulty battery, so I bought one. For convenience and speed, I got one at Halfords, but in future (with more time to play with) I'll get a Bosch battery from Tayna (thanks @GOM)

I popped out to install the new battery in my lunch break today (I WFH) and it was the classic 5 minute job.

All seems well as it starts perfectly. However, I am now getting a load of faults flashing up - Tyre pressure system fault; Automatic Start/Stop system fault - system unavailable; Stabilisation control (ESC) fault; Hill hold assist unavailable...

I have reset the MMI system, but to no avail.

I guess this is why people use a garage even for simple maintenance - the follow-up glitches are a pain even for a minute job.

A scan online turns up info about tools that help register a start/stop battery (which mine is), so does anyone know if I'm stuck without that sort of thing, or will these gremlins go away after a good run out in the car?

THANKS!
yeah, everything had no power and now needs "resetting". either short drive (100 m) or some magic steering wheel/stalk combo (see, those street fighter skills were transferable!). look up model on tinterweb, youtube for method.
 


MJsGhost

Oooh Matron, I'm an
NSC Patron
Jun 26, 2009
5,103
East
yeah, everything had no power and now needs "resetting". either short drive (100 m) or some magic steering wheel/stalk combo (see, those street fighter skills were transferable!). look up model on tinterweb, youtube for method.
No idea what make of car you have but Xmas tree lights after a battery change are not unusual on some makes and sort themselves out on a decent length drive. 15 to 20 mins. Good luck
It's an Audi A3. I'll give it a run out tomorrow and see what happens.

What could go wrong if it's icy again and the stabilisation control really isn't working :lolol:
 


Official Old Man

Uckfield Seagull
Aug 27, 2011
9,294
Brighton
A problem I once had was on my wifes car. As it wasn't driven often the battery would go flat after a few days. Battery was fine, charging was fine but we changed the battery anyway.
Week later flat battery again.
It took many visits to our garage before we found the fault.
It had had a bluetooth device fitted and this was hard wired directly onto the battery (or at least a cable from it) meaning it was always on and thus draining the battery.
 




MJsGhost

Oooh Matron, I'm an
NSC Patron
Jun 26, 2009
5,103
East
Sadly, the drive around didn't clear the fault codes...

Happily, my local garage sorted it for me, free of charge. :clap:

He'd have got my business for the battery if the lazy bugger was open at weekends :)
 




alanfp

Active member
Feb 23, 2024
157
All sounds good in the end.... and you've learnt a little about batteries.

Thanks for letting us know the outcome.

PS I'm impressed that you did a 5 minute job in 5 minutes - all my 5 minute jobs take me at least two hours.
 




MJsGhost

Oooh Matron, I'm an
NSC Patron
Jun 26, 2009
5,103
East
All sounds good in the end.... and you've learnt a little about batteries.

Thanks for letting us know the outcome.

PS I'm impressed that you did a 5 minute job in 5 minutes - all my 5 minute jobs take me at least two hours.
Well, I'm happy to take the compliment, but as my wife has pointed out, the 5 minute job ended up taking several days and the input of a professional mechanic to be finished!
 


Audax

Boing boing boing...
Aug 3, 2015
3,342
Uckfield
Thanks for all the input...

Update:
The consensus seemed to agree that it was a faulty battery, so I bought one. For convenience and speed, I got one at Halfords, but in future (with more time to play with) I'll get a Bosch battery from Tayna (thanks @GOM)

I popped out to install the new battery in my lunch break today (I WFH) and it was the classic 5 minute job.

All seems well as it starts perfectly. However, I am now getting a load of faults flashing up - Tyre pressure system fault; Automatic Start/Stop system fault - system unavailable; Stabilisation control (ESC) fault; Hill hold assist unavailable...

I have reset the MMI system, but to no avail.

I guess this is why people use a garage even for simple maintenance - the follow-up glitches are a pain even for a minute job.

A scan online turns up info about tools that help register a start/stop battery (which mine is), so does anyone know if I'm stuck without that sort of thing, or will these gremlins go away after a good run out in the car?

THANKS!

I see you took it to a garage and got it sorted. It may have sorted itself given a few more trips. I have a Prius that does the Christmas tree lights if the battery has gone completely flat or been replaced. They sort themselves out (eventually) but can sometimes take a week or so of regular driving before that happens.

Halfords would have fitted it for you.

Depends on the vehicle. They point blank refuse to do battery replacements on hybrids in my experience.
 


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