Eberspächer BN4 bench tested

[ForViewingOnly]

How noisy are these things inside the vehicle? Are they high maintenance, or do they run reliably with just a simple annual service?

[xavi242]

It is noisy but nothing bad. Just a constant low and loud sound.

You have to check fuel lines like an engine, you don't want cracks.

[barnsplit64]

looks verry good , i need to look at mine again . the fuelpump doesn't get enough power so gonna try with some bigger cables