Age old question:M103 or the M104 engine?

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Age old question:M103 or the M104 engine?

01-03-2017, 08:41 AM

rayhennig

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Join Date: May 2009

Posts: 343

Quote:

Originally Posted by 97 SL320

I'd be less concerned about head gasket issues and more concerned about the CIS / K jet injection system on any variant of the 103. Parts are very old / worn out at this point and $$ .

But they are fundamentally reliable if the system's looked after. New injectors/seals, good lambda sensor and leak-free vacuum leads to predictable tune-up.

And if the HT is 100% (probably using MB original parts), the M104.98x can be truly rewarding. Some say the most exciting of all.

RayH

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