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 Posted: Sun Jan 21st, 2007 02:30 pm
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Dave
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Mana: 
Thanks for clarification.

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 Posted: Sat Jan 20th, 2007 03:53 pm
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motmac
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Dave wrote: Thanks for the replies. The car is 1995 but I believe the information about the BET is correct having found information on the DOT website. From Jan 2004 the BET levels were reduced from 0.3/0.5 to 0.2/0.3 so these were used in my recent test. The test in 2006 used the old limits. I did not own the car then and suspect it failed on the tighter BET and was then tested on the manufacturer's limits which were the same as the old BET. In fact on this re-test it was better than the tighter new figures. I wonder do all testers go back to the manufacturer's data if it fails the new tighter BET.
yes,if it fails "bet", then test goes into a full cat procedure and vehicle specific limits are found.this has to be followed in order to fail it (if its going to fail) we need engine code to find it on the system.

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 Posted: Sat Jan 20th, 2007 10:56 am
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Dave
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Mana: 
Thanks for the replies. The car is 1995 but I believe the information about the BET is correct having found information on the DOT website. From Jan 2004 the BET levels were reduced from 0.3/0.5 to 0.2/0.3 so these were used in my recent test. The test in 2006 used the old limits. I did not own the car then and suspect it failed on the tighter BET and was then tested on the manufacturer's limits which were the same as the old BET. In fact on this re-test it was better than the tighter new figures. I wonder do all testers go back to the manufacturer's data if it fails the new tighter BET.

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 Posted: Fri Jan 19th, 2007 08:36 pm
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Weetabix
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Mana: 
One set of limits was the BET test - the other the vehicle specific limits.

If the vehicle passes the stricter BET test, then it doesn't need the longer vehicle specific test to be done.

It looks like one year it passed the BET test, the other year it didn't.

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 Posted: Fri Jan 19th, 2007 07:47 pm
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mottyk
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Dave  ,

Your Merc must be Sept 1 2002 or after when first registered registered the 02 & 03 co's apply to all passenger cars from this date needing cat test

Aug 95 to Aug 2002 have 03 - 05 limits

 

 OK

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 Posted: Fri Jan 19th, 2007 02:47 pm
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Dave
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Can anybody explain why my emissions printout for my recent test has limits of 0.20 CO (fast) and 0.30 (idle) whereas last year they were 0.30 and 0.50. Car is Mercedes C180.

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