Buying M6 Summer use only
Buying M6 Summer use only
Author
Discussion

ady702

Original Poster:

376 posts

173 months

Monday 8th October 2012
quotequote all
Hi guys,

thinking of buying a M6 soon, although had a look at Bentley GTs/Vantage V8s the V10 is calling me and ive been a BMW nut for yonks!
I will be keeping the car for a long time but want to know if keeping the car in the garage will screw up the electrics etc since the car has alot of them?

My garage is away from my house so a trickle charger is a no-go, but will just disconnecting the battery reset all the electronics in the car and work again once re-connected?
I did this in my E36 and ZM Coupe where I would just disconnect the battery then reconnect when I wanted to take it out, but the M6 seems like it wont like that lol

any help would be great.
Thanks.

rassi

2,515 posts

277 months

Monday 8th October 2012
quotequote all
The battery should not be disconnected, as the battery would need to be recoded once reconnected. On the other hand, it should be fine during the summer months, and if necessary, you could start it up after the winter hibernation with a booster battery, as well as starting it a few times during the winter and let it run for 10 min. It is a BMW after all, so the reliability is there (as is the complexity, granted)

Cheburator mk2

3,197 posts

225 months

Monday 8th October 2012
quotequote all
ady702 said:
Hi guys,

thinking of buying a M6 soon, although had a look at Bentley GTs/Vantage V8s the V10 is calling me and ive been a BMW nut for yonks!
I will be keeping the car for a long time but want to know if keeping the car in the garage will screw up the electrics etc since the car has alot of them?

My garage is away from my house so a trickle charger is a no-go, but will just disconnecting the battery reset all the electronics in the car and work again once re-connected?
I did this in my E36 and ZM Coupe where I would just disconnect the battery then reconnect when I wanted to take it out, but the M6 seems like it wont like that lol

any help would be great.
Thanks.
Sadly it will not work - if you disconnect the battery, then you would need to re-initialise the car when you connect it again. For this you need the dealer software and hardware. Available on eBay for not a lot, but still a pain in terms of having to learn how to use it etc...

ady702

Original Poster:

376 posts

173 months

Monday 8th October 2012
quotequote all
Ok thanks guys, knew something was different about the M. Can always give a run every so often to keep things ticking over. Thanks for the info smile

JonnoMcJoncliffe

55 posts

165 months

Monday 8th October 2012
quotequote all
Solar trickle charger

ady702

Original Poster:

376 posts

173 months

Monday 8th October 2012
quotequote all
JonnoMcJoncliffe said:
Solar trickle charger
How do these work in a enclosed garage? stick it on the roof?

Vixpy1

42,697 posts

290 months

Monday 8th October 2012
quotequote all
ady702 said:
JonnoMcJoncliffe said:
Solar trickle charger
How do these work in a enclosed garage? stick it on the roof?
Turn the light on hehe

JonnoMcJoncliffe

55 posts

165 months

Monday 8th October 2012
quotequote all
There's got to be an easy way. Have a look at Maplin or similar.

Alpinestars

13,954 posts

270 months

Tuesday 9th October 2012
quotequote all
Not a particularly elegant solution, but get a truck battery and connect your car battery to that. This will increase the number of hours before the battery dies.

Schermerhorn

4,352 posts

215 months

Tuesday 9th October 2012
quotequote all
In the winter, just start it every other day - it is garaged as you say, so the cold won't affect it - and let it run for a few minutes.

This will allow the alternator to charge the battery, and while you are there press as many buttons as you can to ensure everything is working as normal; windows, CD player, seats, Idrive, dash buttons etc etc etc.

I have a few friends with BMW's and they are garaged throughout winter and this is the m.o they go through fairly regularly.

playalistic

2,270 posts

190 months

Tuesday 9th October 2012
quotequote all
Schermerhorn said:
In the winter, just start it every other day - it is garaged as you say, so the cold won't affect it - and let it run for a few minutes.

This will allow the alternator to charge the battery, and while you are there press as many buttons as you can to ensure everything is working as normal; windows, CD player, seats, Idrive, dash buttons etc etc etc.

I have a few friends with BMW's and they are garaged throughout winter and this is the m.o they go through fairly regularly.
Really? Sorry but this sounds like pretty poor advice to me.

I'd take it out on dry days at least once/twice per month and make sure it all gets up to temperature and has a good run.

Schermerhorn

4,352 posts

215 months

Tuesday 9th October 2012
quotequote all
playalistic said:
Schermerhorn said:
In the winter, just start it every other day - it is garaged as you say, so the cold won't affect it - and let it run for a few minutes.

This will allow the alternator to charge the battery, and while you are there press as many buttons as you can to ensure everything is working as normal; windows, CD player, seats, Idrive, dash buttons etc etc etc.

I have a few friends with BMW's and they are garaged throughout winter and this is the m.o they go through fairly regularly.
Really? Sorry but this sounds like pretty poor advice to me.

I'd take it out on dry days at least once/twice per month and make sure it all gets up to temperature and has a good run.
If you have a flat battery and no back up, you wont be taking it anywhere.



ecain63

10,646 posts

201 months

Tuesday 9th October 2012
quotequote all
Schermerhorn said:
playalistic said:
Schermerhorn said:
In the winter, just start it every other day - it is garaged as you say, so the cold won't affect it - and let it run for a few minutes.

This will allow the alternator to charge the battery, and while you are there press as many buttons as you can to ensure everything is working as normal; windows, CD player, seats, Idrive, dash buttons etc etc etc.

I have a few friends with BMW's and they are garaged throughout winter and this is the m.o they go through fairly regularly.
Really? Sorry but this sounds like pretty poor advice to me.

I'd take it out on dry days at least once/twice per month and make sure it all gets up to temperature and has a good run.
If you have a flat battery and no back up, you wont be taking it anywhere.
Battery wont charge just by letting it idle. If my memory serves me correctly the car needs to be above a set rpm to charge the battery else its just maintenance current keeping the car running that you'll be getting at idle. 1600rpm rings a bell.

Edited by ecain63 on Tuesday 9th October 20:03

playalistic

2,270 posts

190 months

Tuesday 9th October 2012
quotequote all
Schermerhorn said:
playalistic said:
Schermerhorn said:
In the winter, just start it every other day - it is garaged as you say, so the cold won't affect it - and let it run for a few minutes.

This will allow the alternator to charge the battery, and while you are there press as many buttons as you can to ensure everything is working as normal; windows, CD player, seats, Idrive, dash buttons etc etc etc.

I have a few friends with BMW's and they are garaged throughout winter and this is the m.o they go through fairly regularly.
Really? Sorry but this sounds like pretty poor advice to me.

I'd take it out on dry days at least once/twice per month and make sure it all gets up to temperature and has a good run.
If you have a flat battery and no back up, you wont be taking it anywhere.
If the battery is in good condition and the car doesn't have some form of phantom drain going on then it should easily last two weeks to a month between uses. How much juice do you think it uses to crank the car over from cold? Now, how much juice does it charge when idling for two minutes? See where I'm going wink

ady702

Original Poster:

376 posts

173 months

Tuesday 9th October 2012
quotequote all
IIRC I thought you had to drive 50/60mph+ for the alternator to recharge the battery properly? and I think anything less than 13.5volts on the battery and it wont crank

Davidonly

1,080 posts

219 months

Wednesday 10th October 2012
quotequote all
Starting and stopping without driving (ie getting the car up to temp) will also ruin the engine and corrode the exhaust.

Lots of condensation at start-up, rich mixture washing oil from cyclinder walls and corrosive combustion deposits etc etc. BAD idea.

My M3 lives under a cover all winter (since 2007) I drive it once a week in the dry if I can (weather permiting) which has kept engine and brakes in good nick. A good run to dry out the engine bay, heat up the cabin etc etc. I do about 20 miles each run trying to run at higher rpm once warmed up fully to blow out the exhausts.

The cover is OK but a garage would make this winter project even easier smile

ady702

Original Poster:

376 posts

173 months

Wednesday 10th October 2012
quotequote all
Thanks, good info there.

Would you still follow the service schedule on the car or just do a yearly service even if the car hasnt done the full cycle?

I didnt do this on my previous cars, apart from my M Coupe since I only did around 3k per year but would a newer M need to be done? Like to keep to the history in correct order