Cars & sedans · 1996–2002
BMW Z3 battery replacement.
We bring the right battery to your Z3 and swap it where it's parked — at home, at work or in a parking lot, anywhere in the OKC metro and across Oklahoma. Same-day or scheduled.
- 48battery group size, newest Z3s
- Regular or AGMbattery type
- 30–60 minsame-day arrival

Which battery your Z3 takes
| Model years | Battery size | Cold-cranking amps | Type |
|---|---|---|---|
| 1996–2002 | Group 48 | 730–800 CCA | Regular or AGM |
From O'Reilly Auto Parts' catalog — the store we buy your battery from (checked on a 2000 2.5L Z3). Some engines and trims differ, so we confirm the exact battery for your Z3 when you book and show you the price before we install it.
Where the battery is & what the swap involves
1996–2002 BMW Z3
Where it is: In the trunk, behind a side panel.
After the swap: BMWs need the new battery registered with the car's computer so it charges it correctly — we do that as part of the swap.
How it works
Book online and pay the service fee — your card is saved. We head to your Z3, test the old battery, take it to the closest O'Reilly for the core exchange and buy the right new one at the store's walk-in price. Back at your car we charge the battery plus sales tax to your saved card, install it, test the charging system and email your receipt. Installation labor is covered for 90 days.
BMW Z3
Straight answers.
By O'Reilly's catalog, the BMW Z3 takes — 1996–2002: Group 48 (730–800 CCA). Engines can differ, so we confirm the exact battery for your Z3 when you book, and you see the price before we install it.
The catalog lists regular batteries for every BMW Z3 we cover; an AGM is an upgrade some owners choose for short trips and Oklahoma heat. For 1996–2002, regular and AGM both fit — we'll match what your Z3 came with unless you ask for the upgrade.
In the trunk, behind a side panel. Wherever it is, we swap it where the car is parked.
More BMW models
Other cars
Every vehicle → — don't see yours? We do almost every gas and diesel car, truck and SUV. Book it here.