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Go Back   E46Fanatics > Tuning & Tech > DIY: Do It Yourself

DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 10-17-2006, 10:44 PM   #21
FalconGuy
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my hyd failed twice in 2 years, mech was good for 3. I would like a reverse DIY. I have a new mech sitting waiting for the time to do it...


Some improvement, 250 versus 29 bucks with a drop in reliabilty. do yourself a favor just like waterpumps never buy OEM
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Old 09-19-2007, 11:58 AM   #22
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I know this post is a few years later but GREAT DIY Alex!
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Old 10-02-2008, 10:10 AM   #23
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Hydraulic Tensioner 330CI 2001 M54 5spd

Great Pics and DYI, but I am a little slow...
How do you release the pressure on the hydraulic tensioner to remove belt?
Thank you.
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Old 10-05-2008, 05:18 PM   #24
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I've got a mechanical tensioner for my AC system and a hydraulic tensioner for my drive belt system. Is this unusual? It also appears both the alternator and tensioner pulley bearings have gone bad. I need to replace both before they start to fail.
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Old 01-11-2009, 02:22 AM   #25
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Could i use the Same bolts from the Old mechanical tenstioner to mount the new one? or do i need different bolts??
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Old 02-28-2009, 03:07 AM   #26
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Could i use the Same bolts from the Old mechanical tenstioner to mount the new one? or do i need different bolts??
Yes, they are different bolts. An internet reseller now sells the hydraulic unit as a kit but you may need to get the bolts from the dealer.
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Old 03-05-2009, 09:37 PM   #27
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Old 07-29-2009, 03:49 PM   #28
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Do you know where they sell this "kit" or whole unit?
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Old 07-29-2009, 09:27 PM   #29
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Do you know where they sell this "kit" or whole unit?
http://www.rmeuropean.com
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Old 08-24-2009, 09:27 AM   #30
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Does the hydralic pull the belt the same way ?

I noticed that you have an extra belt-guider next to the waterpump.

Mine does not have this.
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Old 09-10-2009, 10:06 AM   #31
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Do you know where they sell this "kit" or whole unit?
http://www.autohausaz.com/search/pro...ner%20Assembly

whole conversion for ~$100
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Old 11-28-2009, 04:32 PM   #32
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How do you release the pressure on the hydraulic tensioner to remove belt?
I have the same question, help? I dont see enough room to fit a screwdriver or something to push it down with.

Thanks.
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Old 11-28-2009, 06:29 PM   #33
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is it better to go oem or go with autohausaz.com?
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Old 12-13-2009, 02:51 PM   #34
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Does anyone know the torque specs for these items? I cannot seem to find it in the Bentley
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Old 12-13-2009, 07:40 PM   #35
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Originally Posted by GUNIT View Post
Do you know where they sell this "kit" or whole unit?
Quote:
Originally Posted by xjunmoonx View Post
is it better to go oem or go with autohausaz.com?
Why buy incomplete kits when you can get it with nearly everything you need with genuine parts, plus a 2 year/unlimited mileage warranty valid at any US BMW dealership!

http://www.trademotion.com/partlocat...catalogid=4462

Anyone know the torque specs? Bueller?
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Old 12-25-2009, 09:50 PM   #36
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Why buy incomplete kits when you can get it with nearly everything you need with genuine parts, plus a 2 year/unlimited mileage warranty valid at any US BMW dealership!

http://www.trademotion.com/partlocat...catalogid=4462

Anyone know the torque specs? Bueller?
when i swapped out my mechanical out for the hydraulic I didn't torque it to any specs, just gauged with my arm. I don't think you have to worry too much about the correct torque. I've had no issues with the hydraulic tensioner for over 2 years. good luck.
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Old 03-21-2010, 05:22 PM   #37
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hydraulic tensioner torque specs?

It would be much appreciated if someone out there could post torque specs for the hydraulic tensioner bolts. Thanks.
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Old 04-30-2010, 06:19 PM   #38
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Does anyone know the torque specs for these items? I cannot seem to find it in the Bentley
I'll answer it myself for those looking in the future...

Quote:
Originally Posted by golforcars325i View Post
Tensioner is 18 ft. lbs. (24 nm)

Idler Pully is 33 ft. lbs (45 nm)
It was found here:
http://forum.e46fanatics.com/showthread.php?t=464996

Thanks golforcars325i
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Old 10-07-2010, 11:58 AM   #39
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Thanks for the DIY - just wanted to mention one potential inaccuracy. In regards to the placement of the wave washer at the top of the cylinder the picture - this contradicts RealOEM and the assembly of the tensioner I just received.

The wave washer (#14 on the realOEM digram) is apparently supposed to go on the shorter mounting bolt that connects the tensioner bracket to the engine.

The bolt at the top of the cylinder is supposed to be paired with a flat washer #12. I would assume the flat washer provides the rubber bushing in the cylinder mount more support, the wave washer will probably allow the bushing to creep over it and I would guess possibly shorten the life of the assembly.

Pic of the one I received from AutohauzAZ attached.

I also found a link to a BMW bulletin on the retrofit.

http://www.bmwtis.com/tsb/bulletins/...p/B110403g.htm
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Last edited by Fry-man22; 10-07-2010 at 12:30 PM.
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Old 10-07-2010, 12:05 PM   #40
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^ I did it the way you did after seeing the diagram on realoem.

It already came assembled and I dissembled it when seeing the write up on this , but after realizing that the part arrived correct in the first place, now it left me to guess on what torque spec to use when putting it back together
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