Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E34 (1989 - 1995)

E34 (1989 - 1995)

Reply
 
Thread Tools Display Modes
  #1  
Old 10-21-2012, 04:33 AM
Ssuss34 Ssuss34 is offline
http://i1341.photobucket.
Location: Sydney
 
Join Date: Oct 2012
Posts: 66
Mein Auto: '89 E34 535i
Can anybody pin point this fluid leak?

So thisafternoon I noticed there was an oil / fluid leak coming from somewhere. The oil ends up accumulating on the undercarriage just behind the front right wheel arch. The oil is a brownish redish colour. Does anyone know where this leak may be coming from? Please see pics to help explain the location.

__________________
Reply With Quote
Ads by Google
  #2  
Old 10-21-2012, 05:41 AM
robertobaggio20 robertobaggio20 is offline
Banned
Location: earth
 
Join Date: Oct 2009
Posts: 3,403
Mein Auto: car
Open your engine bay. Open the power steering tank. Open your brake fluid reservoir. Pull out your dipstick. Look at all the fluids. See if the leak matches any of these.

You can dab some of the fluid from your engine bay on a white tissue to make it easier to study

If your brake fluid reservoir is running low, top up with brake fluid immediately, and then take your car to a workshop to have it checked out. Do not delay.

The only other fluid at the back of the car would be differential fluid. But that should be leaking (if there's a leak) from the rear differential and not the doors.
Reply With Quote
  #3  
Old 10-21-2012, 07:33 AM
snowsled7 snowsled7 is offline
The Ornery Old Man
Location: SW Mountains
 
Join Date: Mar 2012
Posts: 980
Mein Auto: GTI
There is a bolt that commonly comes loose on the 535's M30 engine. You need to remove the air filter housing to access it. It is a front timing cover bolt that backs out causing an oil leak. It doesn't take a lot of oil to make a big mess, just follow the oil forward to the source. If it is the t/c bolt, the oil will drip onto the a/c compressor then to the lower engine pan, then either the ground or blown back while driving.

The red color could indicate auto trans fluid. Check the lines and connections between the radiator and the transmission.

Power steering is a pretty common leak as well, though on my lhd drive car, the pump, box and lines are all on the left side of the engine bay. Pressure washing this area first is very helpful as there are several potential leak points. Start by making sure the clamps on the low pressure side and under the resevoir are tight.

Another possibility is the oil filter housing gasket on the left side of the engine.

Clean it up, drive it a little and check all of the above.
__________________
Current ride... '13 GTI Wolfsburg
BMW's from my past...
'92 535i/5 '89 325ix/5
'98 750iL '86 325(e)/5
'95 740iL '84 318i/5
Reply With Quote
  #4  
Old 10-21-2012, 02:52 PM
Josh429er Josh429er is offline
Officially Welcomed to the 'Fest
Location: Saukville, Wi
 
Join Date: Aug 2012
Posts: 233
Mein Auto: 1989 BMW 535i
It shouldn't be brake fluid, snow is right of its red It's trans, or powersteering. It looks like it could be engine oil too. I would guess valve cover. I've had a leak that did that to another car as well as get on the windshield too. My valve cover now leaks onto the subfram pretty close to that. But can't tell until you POP the hood

Under no circumstances should you add brake fluid to your car, unless it is leaking(you will know by the feeling of the brake pedal) or changing fluid.

Clean it all off, check fluids, and drive it for a little bit. Should be able to see the leak.
__________________
2003 GMC Sierra SLT 2500HD CC/SB

Last edited by Josh429er; 10-21-2012 at 03:08 PM.
Reply With Quote
  #5  
Old 10-21-2012, 03:15 PM
Ssuss34 Ssuss34 is offline
http://i1341.photobucket.
Location: Sydney
 
Join Date: Oct 2012
Posts: 66
Mein Auto: '89 E34 535i
Thanks for the advice guys. I will get to work on my lunch break and try to diagnose. Will post back once I have found the source.
__________________
Reply With Quote
  #6  
Old 10-21-2012, 05:11 PM
snowsled7 snowsled7 is offline
The Ornery Old Man
Location: SW Mountains
 
Join Date: Mar 2012
Posts: 980
Mein Auto: GTI
On second glance, are your sure it was your leak? Looks more like you drove through something and it sprayed off of the tire.

I bet some of the spots mentioned, may need attention anyway.

If for some reason it is brake fluid, you will feel it immediately and profoundly in the pedal. Do not drive, find leak.
__________________
Current ride... '13 GTI Wolfsburg
BMW's from my past...
'92 535i/5 '89 325ix/5
'98 750iL '86 325(e)/5
'95 740iL '84 318i/5

Last edited by snowsled7; 10-21-2012 at 05:18 PM.
Reply With Quote
  #7  
Old 10-22-2012, 05:17 AM
Ssuss34 Ssuss34 is offline
http://i1341.photobucket.
Location: Sydney
 
Join Date: Oct 2012
Posts: 66
Mein Auto: '89 E34 535i
Well I had a good look and couldn't find a leak anywhere. So I took it to my local garage who couldn't find a leak either. Snowsled I think you were right, I may have just drivin over someone else's leaking "stuff". So I celebrated by removing my front spring pads getting it to its ideal height.
__________________
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E34 (1989 - 1995)
Today's Posts Search
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 On



Forum Jump


All times are GMT -7. The time now is 09:39 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms