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 > X Series > X5 E53 (1999 - 2006)

X5 E53 (1999 - 2006)
The X5 SAV Forum

Reply
 
Thread Tools Display Modes
  #1  
Old 12-14-2012, 01:44 AM
Fox5 Fox5 is offline
Registered User
Location: Katy, TX
 
Join Date: Dec 2012
Posts: 3
Mein Auto: 01 e53 4.4 sport
Deadlined

I've been looking around and have found some similar symptoms to what I'm experiencing but nobody has them all in one so I'm curious if this would also have the same solutions or something entirely different.

Here's the motor: 2001 M62 TU 4.4 with 130k

Here's the story:

I bought it with 120k and it drove great. Before a road trip I added a pint of Lucas Fuel Injector cleaner to the gas tank. After about 8 hours of driving, it gradually lost power beginning at about 80% then finally going into limp mode with only 20% power and any more throttle wouldn't produce any result past 5% throttle, and the motor was knocking and vibrating horribly. Simply pulling over, turning off, cooling off for a few minutes, then starting up would clear limp mode but it would come back about an hour later. I ran the codes and found 'see dealer', misfire, etc. The motor also developed a noticeable noise from either the valvetrain or a slapping timing chain. using a metal rod as a stethoscope I could hear the same rattle from both banks of the engine. This would be recurring about twice a month until finally:

After replacing the coils with Bavarian Autosport race coils, and NGK plugs, aFe throttle body spacer, and adding a K&N cold air intake, the motor died and would not restart - on an on ramp of all places. After towing it home and pulling the intake I found oil inside the manifold. After removing more parts I found oil filling my front, passenger side intake port. The car has been shelved while I look for a solution.

My best guess is the old motor never had any O2 sensors or coils replaced, the timing chain has never been adjusted, and the lucas detergent knocked some carbon off the valves which were actually sealing the buggers and now oil has seeped through the worn seals. I still have the motor torn apart and would like to replace busted parts if possible but I need to know where to start.

Last edited by Fox5; 12-14-2012 at 02:15 AM.
Reply With Quote
Advertisement
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > X Series > X5 E53 (1999 - 2006)
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 08:29 PM.


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