BMW E90 Replace and Code Battery

In this video, we replace the starter battery of an E90 and subsequently code it using Carly. A battery needs to be replaced if it has been exhausted and there is an error code 009CCE.
The required battery size depends on the engine and the car's features. Many battery vendors offer help in finding the right battery (e.g. online).
Required tools:
➥ SW-10, SW-13
➥ Philipps screwdriver
➠ Slot screwdriver
For coding:
➥ Carly for BMW (45 EUR) (Discount Code: R4E3H6 -5 Euro)
➥ Battery Coding for Carly (10 EUR)
➥ OBDII-Cable (30 EUR)
After you have purchased these things, you are also able to read error codes and do other stuff with your car, so it might be worth the investment.
Cost of repair (320i): ~100 EUR
Difficulty: Medium
Caution: Working with electricity requires concentration and focus. Never hot-wire the battery!
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