| Specification | Value | |---------------|-------| | Displacement | 5.675 L | | Bore / stroke | 97.5 / 133 mm | | Compression ratio | 17:1 (naturally aspirated) / 16.5:1 (turbo) | | Firing order | 1‑5‑3‑6‑2‑4 | | Valve clearance (cold) | Intake 0.10 mm, Exhaust 0.30 mm | | Injector opening pressure | 150 + 8 bar (OM 352) | | Oil capacity (w/filter) | 12.5 L | | Torque, cyl head bolts | Stage 1: 80 Nm, Stage 2: 150 Nm, Stage 3: 180° turn |
The is an essential technical resource for mechanics and enthusiasts maintaining one of the most reliable diesel engines ever produced. Introduced in 1964, the OM 352 is a 5.7L inline-six direct injection engine found in legendary vehicles like the Unimog U1300 and various heavy-duty trucks. Core Technical Specifications
If the oil pressure drops below 1 bar at hot idle, the shop manual directs technicians to inspect the oil pump pressure relief valve spring, check the main bearing clearances, or look for a clogged oil pump pickup screen. Overheating Under Load mercedes benz om 352 engine service repair shop manual zip
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Worn main bearings, a failing oil pump, or a stuck pressure relief valve. Overheating Under Load : Do not run the
: Critical three-stage torquing procedures for cylinder head bolts to ensure a perfect seal.
: Instructions for the oil pump, coolant regulator, fuel injection nozzles, and air compressors. Visual Aids : Critical three-stage torquing procedures for cylinder head
The heart of the OM 352 is its mechanical Bosch inline injection pump. Repair manuals cover: