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Mercedes 300D Suggestions

2231 messages,  Last post on Nov 11, 2009 at 9:21 AM

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What is this discussion about? Mercedes-Benz 300-Class, Engine, Fuel System, Diesel, Coupe, Sedan

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#50 of 2231 ...in my opinion... by autojunkyjosh May 24, 2002 (12:41 am)
Being German I am biased to a MBZ, but I am currently driving an 88 245DL Wagon and have been pretty satisfied. I don't rate it against my Benz because its not in the same class. 1) 1981 MBZ 300D $27,000.<>1988 Volvo 245DL Wagon $17,999. SURVEY SAYS! But both very good cars.
#51 of 2231 by Mr_Shiftright HOST May 24, 2002 (6:02 am)
Yes, that's a fair statement. Not in the same class. Both are good in their respective classes.   I just did an appraisal on a 300SD that rear end a Toyota Solara. Mercedes is running still, Toyota is a total loss. Nobody hurt, that's good!
#52 of 2231 Response by anibalb May 24, 2002 (8:20 am)
Hello,   Mr. Shiftright, thanks for the response. I bought the car. I have the service records that include a major tune up incl. valve adj. 3 months ago. Last year all the shocks and struts were replaced and it got new brakes. I have all the receipts. I have the records that go back to 1994. So the car is indeed in "great" shape. I will replace tires. I am really impressed with the car. Also after all the bad things I hear of the A/C systems I just presumed that it would not work. To my surprise the climate control works just fine and the interior is still a B+.   So, now I just have to learn about this car a little more since I intend to do the maintenace, most of it at least. What do you recommend? Are there service manuals for these things. I think I read somewhere that they exist and are pretty complete.   Any tips for maintenace are appreciated. Where is best place to get parts??? Thanks so much. Glad to join the club!   Oh. There is a lever in the left side of driver's seat. What is it for? I think it would adjust the height of the seat but nothing happens when I pull it. Ideas?
#53 of 2231 by Mr_Shiftright HOST May 24, 2002 (10:50 am)
Yes, that lever adjusts the "rake" of the bottom seat cushion. I never use it.   Diesels needs more frequent maintenance than gas cars. Some things I do religiously area:   Oil and filter every 3,000 miles Flush coolant once a year Flush brake fluid once a year Always use additives in the fuel, both cleaner and cetane booster Change fuel filters (there are two) often (see manual). Adjust valves as per factory recommendations (I think it's every 15K)   It would be a good idea to get the factory manuals. There are 3 I believe. One for engine, one for maintenance and one for chassis. I have the whole set.
#54 of 2231 anibald by paul29 May 24, 2002 (2:21 pm)
Just for interest sake does the tac work? I was on the third tac sender before I found a good rebuilder. Tac sender is the black screw on device in the front left corner of engine bay.
#55 of 2231 Tac by anibalb May 24, 2002 (10:29 pm)
Paul,   That is an interesting question. I just realized that it only works sometimes. That will annoy me. So what is the secret to making it work?   Also the speedometer vibrates when starting to about 20mph I guess. Is that the tires or is it just normal?   Thanks
#56 of 2231 300D Maintenance by anibalb May 24, 2002 (10:36 pm)
Mr. Shiftright,   I was always under the impression that Diesels required less maintenance. I guess I was wrong. How often should I change the ATF and Differential oil? On my old Honda I used to do a major tune-up once a year and was pretty religious about the 3K oil changes.   Only one thing. Please help. How easy is it to adjust the valves? I can do everything on the list. I have seen the valves adjusted once on a BMW. And it seemed so darn easy as long as you could tell difference between intakes and exhaust.   Do the Manuals show how to do this?? I would love a picture or any info on this. I think that I should be able to do it.   I had a 90 Accord and even though it said you should adjust the valves, I never did. At 170K it was still running perfectly.
#57 of 2231 Diesel Engine by autojunkyjosh May 25, 2002 (1:30 am)
I have found a replacement L5 for my MBZ what do I need to check for. I believe it came out of a 300CD, he put a Chevy 350 in it, (A common swap I do not understand) but I will take it off of his hands for 400 dollars. And does anybody have an idea how much it will cost to have this engine installed. And does anybody know of any good online or paper catologues for MBZ and Volvo. i.e. IPDUSA, JCWhitney, etc...
#58 of 2231 anibald by paul29 May 25, 2002 (6:25 am)
Went to a Starfest a few years ago and attended a seminar hosted by Bob Beckman, of Beckman Technologies, Inc. Very knowlegable on MB control modules. They rebuild the tac senders on an exchange basis , the one I got from them was still working 7 yrs later when I sold my 300DT. The last # I had was !-800-742-1021, they were located in Durham,NC 27704, Knob Hill Road. The speedo problem could be the cable, Call Palo-Alto Speedometer 415-323-0234, if you think it is the speedo head, they have been in business a long time. Replies to this message: booie1 (Nov 03, 2007 7:24 pm)
#59 of 2231 by Mr_Shiftright HOST May 25, 2002 (8:49 am)
anibalb---I think the speedo cable needs greasing is all.   The valves are easy to adjust but you need a special "crow foot" wrench to loosen the adjuster nut on the valve. A normal wrench can't get it. Mercedes will sell you this tool or maybe you can borrow it. The manual should give the tool #.   Most people are confused about diesel maintenance. The general rule is:   Diesel maintenance is less costly per service, but you need to service them more often. So it's really a wash in terms of expense.   Also a diesel engine will generally cost more to rebuild than an equivalent gas engine, as it is built to a higher standard.

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