Have Mercedes Questions? Ask a Mechanic for Answers ASAP
Hi, welcome to Just Answer. My name is***** engine number for the used engine is incomplete but if the engine number begins with 116 it came from a 3.8 liter Mercedes. Your original engine was a 4.5 liter. Yes it is possible to make the switch but they should have told you what they were doing before replacing the motor with a smaller displacement motor. Usually the only difference between the 2 motors aside from the displacement is the oil filter housings. The housings can be transferred between motors.
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