Power Steering Fluid Leak on a 2003 X5 4.6is

[Maruzo]

Did a quick search on this forum but didn't see any dedicated threads for it.

Has anyone experienced the fluid leak on their E53?

Mine is starting to leak faster and faster. I'm thinking about tracking down the leak with a uv liquid inspection kit, bought it a while ago and never got to use it.

Right now i'm suspecting the leak might come from the 2 hoses that leads out of the power steering pump. But i won't know for sure until examination next week. Just filled it up with Mobil 1 synthetic ATF and hope it'll last this weekend's driving.

Does anyone have a link to a full power steering hose replacement kit on fcpeuro?

I looked for it but only found a kit for an E46.

[absolutezero273c]

I just bought parts for my daughter's 3.0 e53. In all the years I've owned and maintained BMWs the usual place is where the hoses connect to the reservoir.

On my daughter's 3.0 I bought the following:
3.0
32411095526 Intake manifold
32416767136 radiator return line
32416851217 reservoir

4.6
32416758958 Suction pipe
32416767138 radiator return line
32416851217 reservoir

Getting ready to replace these same parts on my 4.8
4.8
32416758958 Suction hose
32416767138 radiator return line
32416851217 reservoir

Of course you'll have to source the proper hose clamps.

I've always used Pentosin CHF11S on all my vehicles.

Funny enough I had to replace these on my other daughter's e83 and my e38.


Heck, while I'm here:

4.4 M62
32416758958 Suction hose
32416767138 radiator return line
32416851217 reservoir

4.4 N62
32416763977 Suction pipe
32416763978 radiator return line
32416851217 reservoir

[roadriderg]

Just repaired mine I replaced the reservoir,return hose and suction hose. I bought all the parts at fcpeuro.com.

[Maruzo]

Originally Posted by absolutezero273c

I just bought parts for my daughter's 3.0 e53. In all the years I've owned and maintained BMWs the usual place is where the hoses connect to the reservoir.

On my daughter's 3.0 I bought the following:
3.0
32411095526 Intake manifold
32416767136 radiator return line
32416851217 reservoir

4.6
32416763977 Suction pipe
16121180242 radiator return line
32416851217 reservoir

Getting ready to replace these same parts on my 4.8
4.8
32416758958 Suction hose
32416767138 radiator return line
32416851217 reservoir

Of course you'll have to source the proper hose clamps.

I've always used Pentosin CHF11S on all my vehicles.

Funny enough I had to replace these on my other daughter's e83 and my e38.


Heck, while I'm here:

4.4 M62
32416758958 Suction hose
32416767138 radiator return line
32416851217 reservoir

4.4 N62
32416763977 Suction pipe
32416763978 radiator return line
32416851217 reservoir

That’s awesome! Thanks absolutezero!

Isn’t there a high pressure hose that is prune to leaking as well? I read one forum member had a loose nut on the power steering pump and tightening it took care of the leak for him.

[upallnight]

I did the PS hose on my E53 3.0. Let me tell you it's a Bitch to do. The area you are working in is tight.

[upallnight]

Originally Posted by absolutezero273c

I just bought parts for my daughter's 3.0 e53. In all the years I've owned and maintained BMWs the usual place is where the hoses connect to the reservoir.

On my daughter's 3.0 I bought the following:
3.0
32411095526 Intake manifold
32416767136 radiator return line
32416851217 reservoir

4.6
32416763977 Suction pipe
16121180242 radiator return line
32416851217 reservoir

Getting ready to replace these same parts on my 4.8
4.8
32416758958 Suction hose
32416767138 radiator return line
32416851217 reservoir

Of course you'll have to source the proper hose clamps.

I've always used Pentosin CHF11S on all my vehicles.

Funny enough I had to replace these on my other daughter's e83 and my e38.


Heck, while I'm here:

4.4 M62
32416758958 Suction hose
32416767138 radiator return line
32416851217 reservoir

4.4 N62
32416763977 Suction pipe
32416763978 radiator return line
32416851217 reservoir

Pentosin warns not to mix their fluid with ATF from other manufacturers. BMW stamp the cap on the reservoir with the type of fluid that is to be used in the PS system.

http://pentosin.net/pressreleases/cr...luid_guide.pdf

[absolutezero273c]

Yes. There can be other hoses that leak but on all the BMWs I've had to maintain in my family these are the only ones I've had to replace.

[absolutezero273c]

Originally Posted by upallnight

Pentosin warns not to mix their fluid with ATF from other manufacturers. BMW stamp the cap on the reservoir with the type of fluid that is to be used in the PS system.

http://pentosin.net/pressreleases/cr...luid_guide.pdf

Unfortunately a number of my vehicles don't have the stamp/label. And I thought I had read somewhere, will have to go back and search, that this was the fluid that was able to supersede the other BMW ps fluid and retain compatibility without flushing the system.

Granted also this required draining all the previous fluid.

[aureliusmax]

I replaced all my rubber lines in the engine

[upallnight]

On my 2001 build date was 10/2000 the cap for the PS Reservior had ATF stamped on it.

Only 4 more posts until I hit 7000 posts.

Cap with a Pentosin CHF label