Quote:
Originally Posted by Ian White
Count yourself lucky you've found an 05 CDI, this model doesn't use SCR (selective catalytic reduction which uses liquid urea) which is an excess cost.
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No W211 (CDI
or Bluetec) in the USA was produced with urea injection. The W212 will be the first E-Class that will; maybe.
Bluetec R's and GL's did/do have it.