Notes For Battery Replacement And Battery Venting: Notes

On which side the battery is engaged is safety-related.
In use cases in which a gas breather hose is used, pay attention to the correct seating of the gas breather hose and the vent opening are secured on the other side.
When replacing the vehicle battery pay attention to that there is no open bleed hole in the area of the positive terminal. If in this area a bleed hole is opened, it must be closed with a plug and the bleed pipe must be opened in the area of the negative terminal.
On vehicles with AGM battery and the installation outside of the engine compartment, make sure that the battery is replaced with an AGM battery.
With the introduction of the Passat 3C (2006) the vent opening is always on the negative terminal side.
If a protective cap with a sprayed plug is located on the positive terminal of the original battery 000.915.105.DX with the exception 000.915.105.DN and all economy batteries with a simple index, it must be inserted after the use case accordingly on the negative or positive terminal side. The list of the batteries can be found here. Refer to NOTES FOR BATTERY REPLACEMENT AND BATTERY VENTING .
All AGM, EFB+, EFB batteries and the 36AH batteries with the original number 000.915.105.DN, replaced for example in up! and Polo have a protective cap without a sprayed protective cap on the positive terminal. Here the degassing of the positive terminal side is already closed.