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Old 03-26-2001, 10:41 PM
be459 be459 is offline
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Join Date: Jun 1999
Location: Los Angeles, Calif, USA
Posts: 521
My research indicated that the 90's 5 cyl 2.5L diesel (602) engines do not have unusual head problem. The chance of getting a cracked head is no more than other engines with aluminum head. However, the early 603 (6 cyl) engine (no info on early 602 engine), as in 87 300D, has a problem with cracked head due to design. Sometimes, it just cracks, overheated or not. The replacement head should be better.

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