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Message: <blockquote data-quote="Bukit Mertajam" data-source="post: 21012" data-attributes="member: 20518"><p>Hi,I am new here and hope someone can help me with my E39 problem.Tried searching for a similar thread but could not find one. If anyone knows of similar thread, please let me know.I am not a car techie and I will try my best to explain my car problem.I have an E39, May 2000, 523i (M52 engine) which I have been driving for almost 4 years. Lately my car experienced overheating problem and I have sent to a workshop in Bukit Mertajam a couple of times. The last time they told me it was caused by a leakage of the gasket and therefore water slips through it. They eventually open up the engine and have grinding works and gasket replacement  etc. However, when they tried to close back the engine, they discovered that they could not tighten the screw as the hole, which was previously tapped has loosened. Re-tapping the hole is not possible as it may lead to other problems. It was then suggested that I changed the engine. If so, I would like to change to a newer M54 engine which my forman says would cost around RM9K (used unit). As I google in internet, I discover that there are some differences in the M52 and M54 such as the air manifold etc etc.My concern is, can I change to a M54 engine? Besides the air manifold, I was also told that the E39 with M54 engines (525i) uses sensor for fuel control compare to M52 model which uses cable. Would this be a problem too?I really hope someone can help me as I need to make a decision so that I can have my forman proceed with the repair or changes.Thanks all.</p></blockquote><p></p>

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