E39 M5/540i Power Steering Line Replacement

[@crimeariver2519]

UK-based E39 M5 owner here. It's worth changing the 'O' ring in the power steering fluid reservoir cap + cleaning the vent hole in the cap. When the power steering fluid gets hot it expands and displaces air to the atmosphere. If the vent hole is blocked (common issue) the pressure builds and forces fluid leaks via the cap 'O' ring....and maybe encourages leaks elsewhere as well.

[@thefadshow]

Thanks for the information! I actually replaced the whole reservoir.

[@onevia9801]

montreal blue metallic on e39... simply perfect

[@AbcAbc-ox6pg]

Hi, I have to replace my M5 power steering lines as well because they are leaking. So the line which goes behind the engine to the steering rack can be reached through the engine bay as shown and lowering the subframe or something like that isn't necessary?

[@pyite100]

What type of torque wrench is that? I think Santa needs to bring me one! I love the color.

[@WindshieldTime]

nice work! i have a 2001 e38 and i am pretty sure i have a very leaky power steering system that needs some attention.

[@thefadshow]

Thank you and Goodluck.

[@onevia9801]

911 subscribers #based maybe 997 would be also appropriate but it don't feel like ruining it 😀 although 912 was pretty special