Battery coding !

C

coskermike

Member
 Swansea
Hi Guys, first post on the forum so be gentle :D I am in the process of buying a 35i but during the inspection it was found that the battery was in need of replacing. I have sourced a battery but reading around and there seems to be some battery coding involved. Could you guys shed some light on this for me please, does it need to be done ? Whats involved? Whats the cost ? Will the car run ok without it being coded ? Anyone do it remotely ? Thanks in advance chaps
Regards
Mike
 
Hi and welcome.

Battery needs to be coded, it's more of a reset really.

If you haven't bought the car get the seller to sort first.
 
If u need to do it yourself, the Carly app can do it. You'll need to buy app and dongle tho.

Btw, intro, car specs and photo - it's the rools...
welcome!
 
Thank you for getting back to me :) I am collecting the car towards the end of the week and I've haggled a better deal based on me sorting the battery ! I have a few contacts in the trade so the battery is working out cheaper ! So as a reset I'm guessing the car will run ok until it's coded ?
 
Oops sorry :rofl: I'm new to the world of the Z, this being my first! It's an 09 plate 35i with the 7sp double clutch gearbox :D all the blurb off the advert !
7-Speed DCT gearbox with Sport Mode
Canberra Beige/Cream Kansas Leather Interior
Adaptive M Sport Suspension
Xenon headlights
Heated and Electric Memory Seats
Front and Rear Parking Sensors
Electric Folding Roof
Remote Central Locking and Remote Roof Opening
Keyless Go and Entry
Electric Folding Mirrors
Comfort Package
Soft Close Boot
Automatic Lights and Wipers
18" V-Spoke Light Weight Alloy Wheels
M Sport Multi-Function Steering Wheel with Paddles
Auto Dimming Rear View and Side Mirrors
Wind Deflector
Ski Hatch
Extended Storage Package
Electric Windows
Trip Computer
Service Indicator
AUX Input
BMW Professional Radio/CD Player
Adjustable Steering Column
Dual Climate Control
Alarm and Immobiliser
Driver/Passenger/Side Airbags
Front Centre Armrest
Cup Holders
Vanity Mirrors
Hopefully I bought a good one !
 
I envy you one or two items on your specification and the colour's excellent, too.
Now all you have to do - if they're run-flats - is buy some new tyres. Just don't buy cheap.

(I have no interest in wheel styles, but no doubt there'll be someone along soon who has and who'll comment on the ones on the car at the moment.)
 
yep, amazon for the dongle or cable. (ios/android)
You'll need to buy the pro app to gain the battery recode option i think, plus the other in-depth options the paid app gives. it's def worth it imo as some of the coding options are very handy.
 
Thank you busterboo, i think ive been lucky to find this spec. You are completely right about the run flats, there is about 4mm left on them so will use them up and then change them for something nice instead !
I will have a look on Amazon now to order the dongle and buy the app too :) cheers guys
I'm liking the forum already :D
 
Chris_D said:
yep, amazon for the dongle or cable. (ios/android)
You'll need to buy the pro app to gain the battery recode option i think, plus the other in-depth options the paid app gives. it's def worth it imo as some of the coding options are very handy.
Click to expand...
I was just going to ask the question of whether it was worth buying the Pro version and what the differences are, so you have more or less answered for me. :D
 
Das882 said:
Chris_D said:
yep, amazon for the dongle or cable. (ios/android)
You'll need to buy the pro app to gain the battery recode option i think, plus the other in-depth options the paid app gives. it's def worth it imo as some of the coding options are very handy.
Click to expand...
I was just going to ask the question of whether it was worth buying the Pro version and what the differences are, so you have more or less answered for me. :D
Click to expand...
I'm finding the 'live parameters' function quiet interesting as you can monitor various temps on the E85 as well as logging everything for later analysis. You can call that a bit anal but I bought a car with a few small issues that I fixed myself and as I'm not a trained mechanic by any margin it's just nice to keep an eye on things in order to validate/verify my own handiwork :thumbsup:
otherwise the other functionality like code reading and coding are worthwhile....
keep us posted re how u get on.
lovely zed btw :wink:
 
I'm guessing carly works pretty much like a code reader, fault diagnosis and service light reset tool ? Other than live mapping what other tricks does it have ? The carly website seems quite vague !!
 
coskermike said:
I'm guessing carly works pretty much like a code reader, fault diagnosis and service light reset tool ? Other than live mapping what other tricks does it have ? The carly website seems quite vague !!
Click to expand...

I think you can code different functions on the car with Carly, locking permutations, winker flashes etc etc :thumbsup:
Rob
 
I replaced my battery a month or so ago and didn't recode anything. What does recoding do when replacing the battery? Everything seems fine!
 
Your new battery won't last as long, the charging rates are reset after coding-the new & old battery would require different charging rates.
Rob
 
Hmmmm OK, kinda makes sense, thanks. Can't help but think that BMW have over engineered that slightly! Charging rates should be set by:

1) The battery voltage.
2) Internal resistance (which will vary with age but can be calculated by the charging electronics if BMW want to be clever).

The charger we designed for the McLaren P1 didn't even need recoding if you replace the battery! Thanks BMW!

Oh well, so is the recode just a reset of charging memory? Or do I need to code in the battery chemistry and/or Ah capacity ?

Thanks in advance chaps
 
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