Mazda MZR–CD diesel engine

This manual explains the disassembly, inspection, repair, and reassembly procedures for the above-indicated engine. In order to do these procedures safely, quickly, and correctly, you must first read this manual and any other relevant service materials carefully.

MZR is the brand name of a generation of Straight-4 engines engineered and built by the Mazda Motor Corporation between 2001 and 2011. The MZR generation includes gasoline and diesel powered engines ranging in displacements from 1.3L to 2.5L. All gasoline-powered MZRs feature an all-aluminum block construction with iron cylinder liners. The diesel MZR-CD engines use a cast-iron block (virtually identical to the Mazda F engine) and an aluminum cylinder head. There are three specific engine families within the MZR generation which include the small 1.3L to 1.6L Mazda Z-engine, the mid-sized 1.8L to 2.5L Mazda L-engine, and the 2.0L and 2.2L common-rail diesel Mazda R-engine. Each engine has its own proper engine code and for accuracy should be identified with such.
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