Engine Mercedes OM502LA

The German company created the engines of the Mercedes OM 502 family to fit their Mercedes Actros trucks. Later on, though, they were widely used in a variety of automobile models, including those made by different manufacturers. These engines are distinguished by their low fuel consumption and high power. They are adept at handling both urban and intercity transportation situations.

The OM502LA engines meet Euro-4 and Euro-5 standards, are tested and dependable, and stand out for their high fuel efficiency. Three 15.9-liter V8 engines with 375 kW (510 horsepower) to 440 kW (598 horsepower) are part of the lineup.

Specifications

Manufacturer	Mercedes-Benz
Also called	OM 502
Start of production	1996
Fuel system	direct injection
Configuration	V
Number of cylinders	8
Piston stroke, mm	150
Cylinder bore, mm	130
Displacement, cc	15928
Power output, hp	510-598
Torque output, Nm / rpm	2150/1200
Fuel type	diesel
Euro standards	Euro 4, Euro 5
Weight, kg	1125 (dry)
Dimensions, mm — length — width — height	1235 990 1022
Engine lifespan, km — official information	1 000

The OM 502 LA engines come standard with a charge air cooling system and an outlet gas turbocharger. A motor brake (throttle valve and throttle valves) and a flare device are optional additions to the engine. The engines are characterized by exceptionally low outlet gas emissions and have a fully electronic system that controls the amount of fuel injected and the timing of the injection via solenoid valves.

The designers of the new generation of OM502LA engines concentrated their efforts on three additional areas: efficiency, safety, and minimizing negative environmental effects. The tried-and-true BlueTec system guarantees the OM 502 LA engines’ environmental compatibility.

General view of OM 502 LA

1. Fan;
2. Coolant pump;
3. Charge air pressure line (with flare device) from the cooler
   charge air;
4. Charge air pressure line to charge air cooler;
5. Oil filler pipe;
6. outlet turbocharger;
7. Oil separator for bleeding pipe from the crankcase;
8. outlet pipe (with engine brake throttle);
9. Oil filter;
10. Fuel filter;
11. Starter;
12. Oil dipstick.

1. Oil pan;
2. Engine control (MR) control unit;
3. Flywheel housing;
4. outlet manifold;
5. Fuel pump (with flanged power steering pump);
6. Air compressor;
7. Resonator (only in conjunction with air compressor);
8. START-STOP buttons;
9. Generator.

1. Engine oil level sensor;
2. Crankshaft angle position sensor (on flywheel);
3. Sensor in. m. of cylinder 1 (on the camshaft drive gear);
4. Fuel temperature sensor;
5. Combined boost pressure / charge air temperature sensor;
6. Coolant temperature sensor;
7. Engine oil pressure sensor;
8. Engine oil temperature sensor.

Explanation of marking OM502LA

OM	Heavy Fuel Oil (Diesel) ICE
502	Engine type: V-8
L	Charge air cooling.
A	outlet turbocharger.