How safe is it to change a BMW 320D battery change from 90ah to 100ah?

40

Asked by Germancanin Jan 19, 2021 at 07:01 PM about the 2010 BMW 3 Series 335d Sedan RWD

Question type: Maintenance & Repair

Dear experts,
I have a BMW 320D 2010 model whose battery is
dead. If i go to BMW Service center, they say yours
is a 10 yr old car and the 90ah battery you have is
discontinued and hence a newer version of 92ah
will need to be installed for 700USD. If i ask a local
repair shop, they say they can install an exide or
amaron 100ah battery for 200USD. I dont think a
slightly bigger size battery can damage anything
as the current drawn will decided by the load
connected. Still, any such experience ? Can I save
some money by doing a local repair with higher
sized battery?

4 Answers

I see no issue. You do need to set the charging system to accept the new battery.

2 people found this helpful.
7,725

The battery will be fine. You will most likely need to program the different capacity battery though.

1 people found this helpful.

If you have the correct scanner you can program your battery yourself but most shops probably don't have the scanner needed. A BMW specialist would have it though.

1 people found this helpful.
40

Thank you guys..will go ahead with 100ah now. Appreciate your responses.

1 people found this helpful.

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