replacement battery

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Norrie
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replacement battery

Post by Norrie » Mon Feb 18, 2019 12:20 pm

Can anyone assist please - potential replacement battery needed for E65 B7, I have been suggested two different versions both with BMW part numbers

AGM 92 - part 61 21 6 806 755
AM 90 - part 61 21 6 924 023

does anyone have the definite answer please? Also if I just buy the battery how easy is it to code it to the vehicle. I do not have any technical equipment or ability
E65 B7 4.4 V8 supercharged No 106 (1 of 7 in UK) - purely for pleasure
E 39 523i for winter and track day - leave it anywhere
E92 325i - written off by X5 I was not driving!
E92 335D Twin Turbo - sold to Sytner Alpina
E 60 - 525D new - sold to Cooper BMW
E 60 - 530D new - sold at auction
E 39 - 520i new - sold at auction
E 30 - 316i new Touring - sold at auction

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v8 ego
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Post by v8 ego » Mon Feb 18, 2019 1:14 pm

I don't know what AM is but AGM is something like absorbed glass mat and does not have the same charging map as a normal lead acid battery so the car needs to be reprogrammed for this type of battery.

If you just replace the existing lead acid battery with a new one, the map needs resetting for a new battery of the same type but if you replace with an AGM it's an entirely new battery type so will require more coding time.

I think AGM batteries are designed to deal with stop-start functionality better which, as you know, the E65 does not have.
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James

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Charles
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Post by Charles » Mon Feb 18, 2019 5:57 pm

v8 ego wrote:I think AGM batteries are designed to deal with stop-start functionality better which, as you know, the E65 does not have.
Probably why it also appears to have a higher load rating of 92Ah

As for coding, pain and expense as it may be, I would recommend getting your dealer to do it if you don't have the equipment or know-how
Charles
Teacher of Chemistry and driver of ALPINAs - not necessarily in that order ;)
B3S Touring (49/116) - been to the moon and now on the way back!
Renault Grand Espace - not mine but the wife's!

PerryGunn
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Post by PerryGunn » Mon Feb 18, 2019 6:07 pm

Charles wrote:
v8 ego wrote:I think AGM batteries are designed to deal with stop-start functionality better which, as you know, the E65 does not have.
Probably why it also appears to have a higher load rating of 92Ah

As for coding, pain and expense as it may be, I would recommend getting your dealer to do it if you don't have the equipment or know-how
Replacing and registering an AGM battery is very straightforward, any decent indy that has INPA etc. should be able to do it in their sleep (at a lot less than BMW prices) - even Halfords can do it!

If you have INPA it's just a case of...

Left-hand pop-up menu - select 'BODY'
Right-hand list - select 'POWER MODULE'
Next menu - select 'ACTIVATE'
Next menu - select 'ACTIVATE2'
F7 - Register battery replacement.

Should then get a message saying something like 'Register battery replacement: Activated properly'
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Norrie
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battery

Post by Norrie » Mon Feb 18, 2019 7:21 pm

Thank you to all who have responded thus far. I apologise it was a typographic error AM should have read AGM.

I previously had the car on trickle charge using the Cetek MXS 7.0 charger, this has a diagnostic light system and can tell at which stage the battery is charging and claims to remove sulphates? It it will not charge it will tell me.

However, the problem maybe I was using a BMW charger which ironically BMW Warranty had delivered to me free of cost. I think perhaps this charger was not exactly compatible?

The battery never ran completely flat, but I was told sign of low voltage is a number of warning lights or messages. I have one now says effectively the air bags and belt tension has failed and to get it checked by BMW.

I cannot cancel the warning as have no ability to do so, however I have plugged the original charger in so will see what the outcome is.

The battery was fitted by Sytner on 19 Dec 2013, so am I expecting too much in terms of life span for it to be OK?
E65 B7 4.4 V8 supercharged No 106 (1 of 7 in UK) - purely for pleasure
E 39 523i for winter and track day - leave it anywhere
E92 325i - written off by X5 I was not driving!
E92 335D Twin Turbo - sold to Sytner Alpina
E 60 - 525D new - sold to Cooper BMW
E 60 - 530D new - sold at auction
E 39 - 520i new - sold at auction
E 30 - 316i new Touring - sold at auction

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Charles
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Post by Charles » Tue Feb 19, 2019 1:24 am

PerryGunn wrote:
Charles wrote:
v8 ego wrote:I think AGM batteries are designed to deal with stop-start functionality better which, as you know, the E65 does not have.
Probably why it also appears to have a higher load rating of 92Ah

As for coding, pain and expense as it may be, I would recommend getting your dealer to do it if you don't have the equipment or know-how
Replacing and registering an AGM battery is very straightforward, any decent indy that has INPA etc. should be able to do it in their sleep (at a lot less than BMW prices) - even Halfords can do it!

If you have INPA it's just a case of...

Left-hand pop-up menu - select 'BODY'
Right-hand list - select 'POWER MODULE'
Next menu - select 'ACTIVATE'
Next menu - select 'ACTIVATE2'
F7 - Register battery replacement.

Should then get a message saying something like 'Register battery replacement: Activated properly'
I stand corrected - thank you :D
Charles
Teacher of Chemistry and driver of ALPINAs - not necessarily in that order ;)
B3S Touring (49/116) - been to the moon and now on the way back!
Renault Grand Espace - not mine but the wife's!

Norrie
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battery

Post by Norrie » Tue Feb 19, 2019 10:52 am

I received this information from ALPINA Buchloe "you can use BMW battery (90AH) BMW part number 61 21 692 4023"
E65 B7 4.4 V8 supercharged No 106 (1 of 7 in UK) - purely for pleasure
E 39 523i for winter and track day - leave it anywhere
E92 325i - written off by X5 I was not driving!
E92 335D Twin Turbo - sold to Sytner Alpina
E 60 - 525D new - sold to Cooper BMW
E 60 - 530D new - sold at auction
E 39 - 520i new - sold at auction
E 30 - 316i new Touring - sold at auction

Norrie
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Joined: Wed Oct 31, 2012 10:35 pm
Location: Horsham West Sussex
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Re: replacement battery

Post by Norrie » Tue May 14, 2019 9:14 am

Resolution to this issue - Got a new battery fitted as per Buchloe information and battery cable. Battery was 6 years old. Car had a number of other problems detected (under warranty) at same time. They we all fine as far as I know before the battery issue, so new sensors as follows Lambda, left and right Oxygen, PDC, Oil and a new auxiliary water pump. All seems fine now.
E65 B7 4.4 V8 supercharged No 106 (1 of 7 in UK) - purely for pleasure
E 39 523i for winter and track day - leave it anywhere
E92 325i - written off by X5 I was not driving!
E92 335D Twin Turbo - sold to Sytner Alpina
E 60 - 525D new - sold to Cooper BMW
E 60 - 530D new - sold at auction
E 39 - 520i new - sold at auction
E 30 - 316i new Touring - sold at auction

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