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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 12-11-2011, 12:24 PM   #1
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Lightbulb M54 330ci

my engine has about 159k on it just curious how long have you heard these engines lasting?

of course with proper maintenance!
starting to get a little nervous the higher the number climbs...lol

starting to think about buying an engine to replace it......
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Old 12-11-2011, 12:40 PM   #2
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I dont know about the 330i exactly but I've seen plenty and heard of plenty E46's running great over 200+ with proper maintenance. Is your engine acting weird at all currently? If its running fine right now and your just afraid of the number 159k then I wouldn't worry until something doesn't feel right with your car. Maintenance, maintenance, MAINTENANCE!
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Old 12-11-2011, 12:44 PM   #3
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So, let's get this straight?

You're jumping the gun on replacing a perfectly good engine that's working well with a used engine?
Some on this board report cars in the 250K miles range.
What are you expecting to be the specific area or part that will wear out to doom your engine?
Bottom line is that you should take care of this engine until the engine lets you know that it will work no more. At that time the message will be clear.

Last edited by Stinger9; 12-11-2011 at 01:01 PM.
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Old 12-11-2011, 12:57 PM   #4
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^This... just keep up with the maintenance
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Old 12-11-2011, 01:07 PM   #5
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The odometer stops working at about 450,000 km or miles, so noone really knows.
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Old 12-11-2011, 01:17 PM   #6
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Originally Posted by Andy2108 View Post
The odometer stops working at about 450,000 km or miles, so noone really knows.

No but really the only thing that wears out on M54's are the piston rings and oilpump nut.

Do a leakdown test to see how well your rings work and just be happy with it
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330ci, engine, maintenance

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