W123 engines - Mercedes-Benz Forum

 
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post #1 of 3 (permalink) Old 08-19-2013, 06:57 PM Thread Starter
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W123 engines

I have a 1979 240d with auto trans, my engine is shot and I was thinking of putting a 300D engine in the car. Is this possible or will I have too many issues trying to retrofit the larger engine in the car??
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post #2 of 3 (permalink) Old 08-19-2013, 09:21 PM
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What year 300D?
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post #3 of 3 (permalink) Old 08-20-2013, 02:16 AM
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It is possible to put a 300D engine into a 240D, but preferably you also need to change the transmission, as automatic transmissions are designed for a specific engine. A change of differential is also advisable, to keep the rpms down to an acceptable level.

There is a specific subforum for the W123:

W123 E,CE,D,CD,TD,TE Class - Benzworld.org - Mercedes-Benz Discussion Forum
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