I did the diesel purge today on my 1998 E300Td. No problems encountered. When I asked on this fourum if I should pour the DP in the old filter or the new one, I did not get a consensus of opinion, so I changed out the pre-filter and I put half of the DP in the old filter, and ran it out. Then I changed filters and put the other half of the can in the new filter. I had to crank it a few times,to get it to start after the pre-filter change, but it fired right up with the new filter fill up.
This is the first filter change since I aquired the car with 30k miles on it. My mileage had dropped a little (27 around town)so we will see if the Diesel Purge helps.

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1998 E300Turbodiesel
1980 300d

Ready- Ronnie

I thought that the last diesel wagon MB brought into the US was in '87. Is that what you have? A diesel wagon made in '98? Where did you get that?

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current Benz
'87 300TD (white) 168K (on the odometer as of 15 April 2004)
past Benz owned & miles I put on them
'62 190D 20K (white)
'63 190D 20K (beige)
'65 190D 35K (white)
'73 220D 175K (metalic green)
'79 300D 135K (metalic blue)

driving a Benz diesel since'77

I get that because of Mercedes confusing designations. This E300TD stands for turbo diesel which they offered in 1998 and 1999.
If any one has any questions on the fuel filter/Diesel Purge DIY job, I would be glad to try and offer any help. The worry about doing the job right was much worse than the job itself.

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1998 E300Turbodiesel
1980 300d

Ready- Ronnie

TXBill is correct. To get the most benefit out of the DP, you need to run the car on 100% DP.

This may shed some light on the subject.

http://www.mindspring.com/~houlihan/merc/purge.htm

I believe you fellows are correct. The problem I had was that after posting twice on this forum an how to do the Diesel Purge on a 1998-99 E300TD, I did not get any procedural feed back. The 98-99 set up is a lot different and not being sure how to do the purge properly, I went ahead and did if just filling the filter twice.

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1998 E300Turbodiesel
1980 300d

Ready- Ronnie

ready-ronnie,

You did about as good as you can without taking the intake manifold off on an E300D TurboDiesel of the W210 flavor. I know the stuff is already diluted with Diesel the way it comes out of the can, and it likely would be more effective to use it straight out of the can rather than further dilute it the way you did, but there are limits. I don't think you got any replies from owners of these vehicles because none of them have tried, just because the procedure would be such a pain in the rear. Good luck, Jim

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Own:
1986 Euro 190E 2.3-16 (291,000 miles),
1998 E300D TurboDiesel, 231,000 miles -purchased with 45,000,
1988 300E 5-speed 252,000 miles,
1983 240D 4-speed, purchased w/136,000, now with 222,000 miles.
2009 ML320CDI Bluetec, 89,000 miles

Owned:
1971 220D (250,000 miles plus, sold to father-in-law),
1975 240D (245,000 miles - died of body rot),
1991 350SD (176,560 miles, weakest Benz I have owned),
1999 C230 Sport (45,400 miles),
1982 240D (321,000 miles, put to sleep)

BTW - I think the more accurate nomenclature for the 98/99 models is E300D-T. Note the "T" comes after the "D", not before. When listed before it indicates "Touring", which means station wagon. Also note the trunk emblem is "E300" and then separately "Turbodiesel", but not "TD" or "D-T".

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Dave
Boise, ID
Check out my website photos, documents, and movies!

But if you think about it, by 1998 MB stopped using the T to denote Touring as well. The E320 wagon's hatch simply says "E320." So the T is now meaningless.

ready-ronnie, I'm sorry we couldn't help you do the diesel purge, and that all you got here was flak over the cars' designation. So anyway, does it run any better since you did it? Was there a specific problem you were trying to address?

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Rick Miley
2014 Tesla Model S
2018 Tesla Model 3
2017 Nissan LEAF
Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro
Chain Elongation References

I stand corrected on the use of E300TD. Mercedes calls it a E300 turbodiesel in the owners manual and on service orders it is called a E300DT.
Concerning the purge:
1. Someone did suggest on the posts that using the DP in the fuel filter was probally the best way to go, considering the problems you would have, using the jar system, on the 98-99 fuel system set-up.
2. Maybe the engine ran a little smoother. You like to think so.
3. I will be checking the milage to see if there is any improvement. Like I stated, The filter had not been changed since I purchased the car with 32K on it and it now has 82k.

Thank for the input. Isn't this a great forum!!!!!!

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1998 E300Turbodiesel
1980 300d

Ready- Ronnie

TX Bill, welcome back! I hadn't realized that you had returned. Now, if Tcane was back and Larry Bible had a faster connection, it would be the "Grand Masters" once again.

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Dave

1982 300D
352,000 miles

I don't think that it could be said better.

Peace on earth, goodwill to men.

Merry Christmas!

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Dave

1982 300D
352,000 miles

Regardless of what is more accurate, ours is always refered to as a 1987 300TDT.

edit: suffered a turbo recall, and 2 years ago a bottom-end failure. As well as a transmission failure. We learned that the 1987 diesel engine is also the most expensive.