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#1
04-25-2002, 11:48 AM
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fuel injectors replace every 90K?
I would like to know if fuel injectors need replacing as a maintenance item at 90-100K miles? I will not have them cleaned due to the labor cost involved (might as well put in a $22 injector that is new).
Do the fuel injector holders, seals, and O-rings need to be replaced, even if the injectors do not? 1983 380 SEL Thanks 
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#2
04-25-2002, 12:38 PM
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Not a bad idea but would be a waste of $$$ unless they had dirt/rust in the complete fuel system. HAVE tested many original injectors with 150K + more miles that were still good!!
The PLASTIC heat shields start cracking at 6 or 7 years & then idle problems can happen. Also all of the rubber connecting tubes can cause this. Also have tested NEW injectors from MB that didn't spray that well.
__________________
MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator
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