The BMW 525 water tank can be replaced by the auxiliary manufacturer.
The 4S store's accessories are all genuine products with after-sales guarantee. It is recommended that the 4S store replace the water tank first. Although the price of parts at the 4S store is very high, there will be no fakes, and after-sales service will also be provided if problems occur during the warranty period.
The parts in the repair shop are generally auxiliary parts, and the quality is not as good as that of the 4S store. It is easy to ignore problems when they occur. In general, it's more reliable to go to the 4S store to replace the water tank.
