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Old 03-23-2008, 10:45 PM
radunegru's Avatar
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Join Date: Jul 2004
Location: New York
Posts: 333
E300 Diesel 1996 poor mileage

I got this car about a year ago and lately it developed some issues. It has been driven by my wife so I can tell when those thinks occurred.
1 car is sluggish when warm
2transmission shift kind of slow sometimes is slipping 2-3 and 3-4.( on hard acceleration it shifts nice)
3The fuel consumption dropped to 20-24 mpg

What I did:
New filters and all fuel lines and o rings.(it was loosing diesel like 10oz a day)
New air filter
New K40 relay
Change trany oil with MB fluid
Change the engine oil with MB Mobil 1 ESP formula M

No improvement after all those thinks. Except that there are no more leaks.
I forgot to tell you that there are no codes or engine light on.
What else should I try?
New Addition to the family
2013 Passat TDI 5Miles
2004 E500 4MATIC Wagon 95k
1996 E300 Diesel 173k Sold
1993 300E 2.8 230k Sold
1994 E320 White Wagon 373K Sold
Still dreaming about ....500E

Radu Negru
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Old 03-24-2008, 02:22 AM
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Join Date: May 2007
Posts: 46
Clean the intake manifold, including the flaps. The later turbos don't have them, but the 96-97 have flaps in the intake that are quite important.
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Old 03-24-2008, 10:33 AM
Parrot of Doom's Avatar
1997 W210 E300TD 243,000
Join Date: Mar 2006
Location: Manchester, UK
Posts: 983
Checked your tyre pressures lately?
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