Originally Posted By: Vikas
I am thinking about something which will cost me between 5-10K.
So, an E39 then?
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In this price range, I would be normally picking up a used Honda/Toyota but I am thinking I should take the plunge and try a BMW. They all would have close to or just over 100K. Would a 5-series give significantly more trouble over Honda/Toyota between its 100-200K run?
Statistically, yes. They'll also require more preventative maintenance in general.
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Are they structurally better built (i.e. do not rust)?
All cars rust. Some of the BMWs may fare somewhat better in this respect than a Toyota/Honda, but it all really depends on how well a particular specimen was maintained and how quickly the salt was removed from it.
I think the main advantage of a BMW would be somewhat more satisfying driving experience, but to many people it's not a big enough difference to offset the higher upkeep costs.
Speaking of fun to drive, I'd skip the 525i. Look for a 530i or at least 528i. None of them are speed demons, but at least the higher displacement versions are able to get out of their own way. MPG is about the same on all 3.
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Any specific parts which tend to go at this mileage on a 5-series (e.g. cooling system issues, fuel pump issue, electrical gremlins?)
This page has some basic info:
http://edgemotorworks.com/index.php?option=com_content&task=view&id=27&Itemid=55
Also, check out this FAQ thread from BFC that has links to various common problems and fixes:
http://forums.bimmerforums.com/forum/showthread.php?t=895713
Cooling, VANOS, electrical issues are some of the more common problems.