The only W210 E class diesel imported to the USA was the 96-99 E300. Your question is therefore causing confusion as most folks here think in terms of the ol 240D from the 70's & 80's.

Your question will get a better response on European forums where folks know the features of the models you are refering to.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)