My Wife got about a week and 1/2 use out of the car and she said is would not go fast.

I checked the timing again and searched for disconnected vacuum hoses and found nothing.

I drove it around and it drove normal till you got above 30 mph then bogged down. I could not tell if it was a transmission slipping issue or a plugged fuel filter.

The fuel filter change was the easiest to do. However, locally they wanted $16 for a fuel filter. Ordered on on eBay for total cost of $8 but my Wife had to wait and walk to work till it came.

During that time I advised here that the new fuel filter my not fixe the issue.

The fuel filter arrived 2 days early but I did not get to replace it till today.

I could not remember were the filter was located on the car. When I found it I realized I likely had not changed that filter for a really long time.

During the filter change the old filter fell to the ground and what came out was not clear like gasoline. After I got the new filter on I dumped out the old one and sure enough there was a lot of oddly black stuff in it.

The new filter seems to have cured the issue. Since the black stuff could have been rust or some other issue I am thinking in a few months the filter may need to be replaced again. But, will wait and see.

Hopefully before that time the Mercedes will be fixed.

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84 300D, 82 Volvo 244Gl Diesel