Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E70) Forum
Fluid Motor Union
User Name
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management

LinkBack Thread Tools Display Modes
Old 08-12-2019, 10:27 PM
Join Date: Feb 2017
Location: ct
Posts: 69
AlpineD is on a distinguished road
35d oil leak from filter housing

Ive noticed a steady leak coming from my oil filter housing. I use mahle filters but it dosent seem right to be leaking. It appears to be coming from the point of sealing when tightened close, i know this is common with n54 motors but have yet to see any info on the diesels
Reply With Quote

Sponsored Links

Old 08-12-2019, 11:15 PM
Join Date: May 2009
Location: USA
Posts: 822
FunfDreisig is on a distinguished road
The large O ring is supposed to be in a grove in the cap that keeps it inside the housing. Bit it's pretty easy for the O ring to slip out of its grove and end up at the top of the threads between the housing and the cap.
Reply With Quote
Old 08-13-2019, 09:25 AM
Join Date: Dec 2014
Location: New England
Posts: 667
josiahg52 is on a distinguished road
The o-ring can be replaced every time the filter is changed as the filter comes with a new one. I use a tiny amount of fresh oil on the o-ring also.

Overtightening can crack the plastic lid. I think they have a torque spec but in both my M5 and the X5d, they just stop turning.
8/2011 X5 xDrive35d Sport, Black Sapphire Metallic, Black Nevada Leather, Fine Burr Walnut Trim
2/2001 M5, Jet Black, Exclusive Complete Black Walk Nappa Point Heritage Leather, Black Cubic Trim
Reply With Quote
Old 08-13-2019, 11:25 AM
Join Date: Feb 2017
Location: ct
Posts: 69
AlpineD is on a distinguished road
I always use the new ring provided with a dab of oil of the finger to lubricate the new ring, opened the filter early today and the ring was seated properly. Was tightened fairly tight nothing appears cracked on the cap. Still guessing, im going to wash the area and look for leaks closely
Reply With Quote
Old 08-18-2019, 11:19 PM
Join Date: Feb 2019
Location: West Michigan
Posts: 18
SPL15 is on a distinguished road
Tightened "fairly tight" is probably too tight...

This is the biggest issue I see when folks change the oil on these types of filter housings. They crank it down, then crack the housing, or deform it slightly...

If it was tight enough to be "fairly tight", I'd 1st try tightening it to just snug (like it's supposed to be). The seal is what is supposed to provide the seal. Tightening down the filter housing tight does not make the seal, seal better... There's absolutely zero reason to tighten the filter housing down to more than just snug.
Reply With Quote
Old 08-19-2019, 05:52 AM
Join Date: Jan 2018
Location: Charleston, SC
Posts: 171
Baby Unicorn Taco is on a distinguished road
I believe the oil filter housing calls for torquing to 25nm. That is what I follow and it makes it snug but not tight.

Sent from my iPhone using Xoutpost.com
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 04:41 PM.
vBulletin, Copyright 2020, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.