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E46 Convertible
The E46 vert forum. Talk about dropping your E46 top here.

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Old 10-02-2012, 04:52 PM   #1
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Join Date: Jul 2010
Location: florida
Posts: 158
My Ride: bmw 325 ci
E46 vert hydraulic fluid

Does anyone know for sure what is the OEM hydraulic fluid used for the hydraulic pump that raises the top? There are many imitations IN THE MARKET and some postings that provide a name for the fluid that they say the dealers sell called "Aral Vitamol ZH-M ".

I have checked various dealers and they do not have such a thing. What they have is a fluid sold by BMW that all it says in the bottle is BMW group hydraulic fluid and sells for $52 for 250ml bottle and is beer yellow.
I need to top off my fluid and hesitate to use a different fluid than the one that came with the car that may have a different coeficient of expansion or temperature rating and create a major problem rather than resolve my issue of a slow moving top.

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Old 10-02-2012, 05:19 PM   #2
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Join Date: Aug 2010
Location: Goose Creek, SC
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My Ride: 2000 323 Cic
I bought a bottle from the stealership to top mine up. part number: 54 34 0 394 395 "Hydraulic fluid for convertible tops". A few weeks later i had to replace one of the cover cylinders (found out where the fluid was going). New cylinder came with a bottle of "Aral-Vitamol-ZHM" Number: HB92952-215. The cylinder was also purchased from the stealership.

ESCtuning has it for about $30.
Done:H&R Sport Springs Koni STR Shocks & Struts, Lower Control arms, FCABs, OFHG, CCV, Cooling Sytem refresh, Coolantsnitch. Yet to do:Transmission fluid & filter, VCG
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Old 10-02-2012, 06:13 PM   #3
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I swear every time I hear someone say Aral Vitamol I think of an Eighties fragrance.
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Old 10-02-2012, 08:19 PM   #4
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Location: Kingston, Ontario
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My Ride: '05 M3 vert, '13 X5D
Refer to http://forum.e46fanatics.com/showthr...857&highlight=

I bought the 3rd party product and all is fine.

Last edited by gbakerkingston; 10-02-2012 at 08:20 PM.
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325ci vert top

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