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Old 11-12-2001, 10:29 AM
c43amg c43amg is offline
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Join Date: Apr 2001
Location: Washington, DC
Posts: 223
I repaced the smog pump on my daughter's '88 420SEL; I understand that not only is it possible to cause failure of an emissions test, but also that not repairing it may lead to a premature (and expensive) catalytic convertor replacement. See:

1988 560 SEL Air Pump Seized

http://www.peachparts.com/shopfor...?threadid=16303

http://www.mbca.org/discussion/thre...rch=smog%20pump
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