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X3 E83 (2004 - 2010)
Talk about the E83 BMW X3 in this forum!

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  #1  
Old 01-31-2011, 02:05 PM
stewroyals stewroyals is offline
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Location: Baltimore, MD
 
Join Date: Jan 2011
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Mein Auto: 2005 BMW X3
2005 X3 2.5L Timing Chain

Is there a recommended mileage to replace the timing chain on my car? I am rolling up on 150,000 and want to be proactive if need be. Thanks.
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  #2  
Old 01-31-2011, 02:16 PM
PSUEng PSUEng is offline
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Mein Auto: 2007 X3
It's not really a maintenance item, like a belt is. If you are having other issues, the chain may be the culprit. Are you having any problems?
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  #3  
Old 01-31-2011, 03:19 PM
stewroyals stewroyals is offline
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Location: Baltimore, MD
 
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Mein Auto: 2005 BMW X3
Nope. No problems, other than rough idling from time to time. I have a new K&N air filter and new plugs but didn't seem to make the rough idling go away. It purrs like a kitten 75% of the time. The reason I asked about the timing chain is because most vehicles (with belts) need to be serviced after 100k. I just wanted to make sure nothing needed to be done. Thanks for your reply.
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  #4  
Old 02-01-2011, 11:11 AM
UncleJ UncleJ is offline
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Mein Auto: '06 X3
There were some early BMW 3 and 5 series with belts that had to be changed but they went to chains and that problem went away. As I recall they were the eta engines with the belt and they were supposed be changed at around 100K or so. My Alfa GTV6 had belts too but they had to be changed at 60K! The fan belt needed to be changed each oil change (7500K miles) too. I still loved that car though.
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Old 02-01-2011, 11:34 AM
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X3emist X3emist is offline
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Mein Auto: 06 X3 Sport
Rought Idle

Do you just notice the rough idle when the temps outside are below say 40 and the engine is cold?
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