How do I preform a citrus flush on a 1985 617.

By hitting search above and typing in "Citrus"........

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Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John

Agreed - that's how I did mine!

Lots of info out there behind the search button

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83 300d - 390k

A little TOO much info. Too much to sort through. The search option is too much of a PITA.

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DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012

I try to use it to avoid starting "you should have searched" arguments... but it is annoying sometimes. If you aren't specific enough, you get at least 300 of the 600 or 700 threads available... too much to sift through... if you're too specific, or you're just right but the words weren't in the right order or you weren't standing on your head right... then you don't get the very thread you wanted. Often times i've wanted to search for one of my own threads and entered a direct quote... nothing.

It's still a good first resort but I'll be the... not the first, but one of the first to admit I have to ask anyway usually.

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~Michael S.~
Past cars:

1986 300SDL
1987 300SDL
1982 240D
1982 300SD


Current:

1987 300SDL

Use Google as your search engine.........not the forum. Put in "Mercedesshop.com" as the domain name.

You get all the benefits of phrases such as "radiator cap" or "heater core". The forum software cannot handle a phrase.

Don't use the forum software to perform searches!

This can certainly be accepted as Gospel from a moderator.

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DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012

You'd be amazed at the success I've had with Google when compared to the forum. There are threads that I know exist and I cannot find them with the forum search. With a few more terms, Google picks them out nearly every time.

True about limited stickies but I kinda think a good search method could be make better use of this site. Someone like me who has been around this forum a few years still needs to be reminded that you can use google more effectively.
BTW, I accidentally found out what a citrus flush was but reading another thread without really looking for it.

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DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012

Is there a citrus flush or should the original quesiton have been about a citric acid flush?

The archives are in sore need of an index. Until someone volunteers, search is the best you can do if you don't like to hear people to tell you to search :/

Sixto
87 300D

We do have an index:

http://www.peachparts.com/shopforum/diy-links-parts-category/

Where the heck have I been? That's wonderful!

Point remains - if that's not sufficient, take the initiative and build an index that works for you because it will definitely benefit others.

Sixto
87 300D

Thank Roy for that. It's all his work.

If you find a valuable thread that belongs in the index, please let Roy or myself know about it.

The index is the secret of the forum. I don't know how to publicize it more...........

so all of you guys are going to clown him for asking how to perform a citric acid flush, and then you are going to hijack his thread. Whats the point?

Citric Acid flush, is useful for dislodging particles, but do you really want to run that through your water pump. If yes, then go from there.

Dump coolant, recycle it. Put in water and citric acid, run it for a little while, then dump it out, recycle it.

Flush, and then put in MB coolant with distilled water.

contact rusty cullens at buymbparts his thread has a good write up on it over there. It seemed like there was a big debate about 3-5 years ago here on mercedes shop as well.

I hope that this has ACTUALLY helped you

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Current Stable:
1994 S500 v140, 210k miles, white with grey.

Former Mercedes in the Stable:
1983 300CD Turbo diesel 515k mi sold (rumor has it, that it has 750k miles on it now)
1984 300CD Turbo Diesel 150 k mi sold
1982 300D Turbo Diesel 225 sold
1987 300D Turbo Diesel 255k mi sold
1988 300 CE AMG Hammer 15k mi sold
1986 "300E" Amg Hammer 88k mi sold (it was really a 200, not even an E (124.020)
1992 500E 156k mi sold
etc.

A citric acid flush is used for dissolving scale, not dislodging particles.

I recently descaled my euro 84 300TD turbo. It had enormous quantities of built up scale, really staggering.

A few weeks later, I removed the waterpump to inspect the impeller for wear (it was still running hot). Believe me, nothing was going to hurt that iron impeller.

The basic procedure is:

1) drain coolant (radiator and block drains)
2) remove thermostat
3) degrease cooling system with a detergent, flush with clean water
4) descale with 10% citric acid, flush with clean water until no acid residue remains
5) flush with distilled water
6) install new, tested, thermostat
7) refill with appropriate quantity of approved coolant (undiluted), fill with distilled water to correct final volume

There is alot more information behind the scenes of what I've just described, e.g. "flush" means filling the system and driving it to get it up to operating temperature. The correct procedure is described in the factory service manual. If you want to do it without the FSM, you really will need to search the archives.