Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help

Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

LinkBack Thread Tools Display Modes
Old 04-24-2003, 05:13 PM
Registered User
Join Date: Jan 2003
Location: Reno/Sparks, NV
Posts: 3,063
Coolant change on 300D turbo

I'm planning to do a coolant change soon and I've heard the engine block drain bolt is difficult to get to. Has anyone successfully removed this bolt and what did it require? Also, what's the easiest way to find it? I'd also like to know if my model (82 300D) has a coolant filter that needs to be changed.

2004 VW Jetta TDI (manual)

Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL
Reply With Quote
Old 04-24-2003, 05:23 PM
Posts: n/a
The bolt is 17mm, and I used a 3/8" ratchet with a small cheater bar. Just make sure the coolant is cool, and your arm doesn't get stuck or you will get nice shower like I did. Also wear some googles when you do this
Reply With Quote
Old 04-24-2003, 05:30 PM
Join Date: Jul 2001
Location: Woolwich, Maine
Posts: 3,598

The drain plug on a 240D (W123) is on the block next to the starter. I believe the 300D is the same. It is not hard to get to or see, but I would disconnect the battery when you do the job. I can be kind of clumsy and when operating in confined spaces this characteristic can become accentuated. I have managed to nearly weld the wrench to the starter on its way to the drain bolt in the past, which is spectacular enough to make the pain of skinning your knuckles just before the sparks started seem like it happened a year ago.

The bolt has a Copper or Aluminum washer under it and when the bolt comes out, sometimes the washer stays on the bolt, and sometimes it doesn't. When it doesn't it follows the stream of coolant coming out, and can be hard to retrieve. Just be aware there is one there (unless the last guy lost it) and you should have no real difficulty.

I know of no filter in the sytem, and have never noted any discussion of one in any manuals. Good Luck, Jim

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

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)
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 03:45 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page