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#1
01-18-2006, 05:39 PM
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emissions test results
just passed emissions test in Arizona. I wondered about my numbers and how they compare to other cars and other mercedes same year and model. Hydrocarbons (hc's) tested at 6 (tested in ppm) and allowable level is 220. Carbon Monoxide shows 0.00% and standard is 1.20%. The car is a 94 c280.
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1994 C280 2009 VW Tiguan 1993 Toyota X-tra Cab SE-5 1973 220D  ... Gone, but not forgotten1991 Alfa Romeo 164L  Gone, wife MADE me forget it2006 Hyundai Tucson... just straight out FORGOTTEN! 
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#2
01-19-2006, 08:07 AM
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Almost any car from 1986 with catalyst & O2 sensor should come up with almost all "ZERO'S" on an emission test!
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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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#3
01-19-2006, 12:22 PM
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Not true with most M103s (and most other CIS-E engines)even if everything is in perfect working order. HC is usually well above average for the year group. Single digit HC and zero CO is very good, and some cars achieve this, but it is well below average for a '94 vintage car.
Duke
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#4
01-19-2006, 12:44 PM
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Being a Georgia Certified Emission inspector since the 70's, (done 10,000 inspections) I can tell you that good running cars pass with ZERO's about 90%+ of the time!
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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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#5
01-19-2006, 01:31 PM
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You should see the emissions test database from Califonia.
Average PASSING emissions for the '87-'92 year group are about a third the limit for HC and NOx - but only about 15 percent for CO (remember, this is the average for cars that PASS the tailpipe limits) and about a quarter fail their initial biennial test. Data for newer year groups is better due to improved emissions control technology and less wear and tear. In particular, CIS-E engines tend to be high emitters. Duke Last edited by Duke2.6; 01-19-2006 at 01:43 PM.
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