Parts Catalog Accessories Catalog Tech Info Tech Forums
  Search our site:    
 Cart  | Project List | Order Status | Help    

Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

Closed Thread
LinkBack Thread Tools Display Modes
Old 09-04-1999, 08:55 PM
Posts: n/a
I just purchased a 1980 240d 4sp and I have a couple of questions.
1) Immediately after start, oil pressure gage goes to upper peg and stays there until engine shut down, even at hot, low idle. Is this normal for this car?
2) The headliner is sagging. How does one remove it?
3) The left (driver's) rear C/V shaft is wasted. What is the easiest way to R&R it?

Thanks in advance,


1980 240d 4sp
ASE Master Auto Technician
ASE Advanced Engine Performance
Old 09-04-1999, 10:15 PM
Posts: n/a
In my 240D oil pressure reads 2 at idle after engine has warmed up completely. Verify your idle speed. The 240D has a manual idle speed adjustment in the dashboard. It might be on(increasing idle speed)and giving you the increased oil pressure reading. The oil pressure gauge in my 240D goes to 3 right past idle speed.
Old 09-06-1999, 01:06 PM
Posts: n/a
from one ase master to another, I just replaced my LR axle shaft on my 1984 300DT.
Easy, drain rear axle, remove rear diff. cover, remove 'c' clip from axle shaft (in diff), raise up diff with a tree stand as high as it will go, remove bolt from other end of axle, 13mm head. punch the axle thru using a brass punch. when removing the axlewatch for the spacer shim against the diff side bearing. Assembly is the opposite of removal(always wanted to say that)

Old 09-06-1999, 08:38 PM
Posts: n/a
Thanks for the responses.

The headliner and C/V shaft are out. I checked the actual oil pressure against the gage in the car and it is indicating correctly.

I am bothered by the design of the oil pressure indicator however. After running oil pressure readings, and further research into design operating oil pressures for this engine, it would seem that a gage calibrated from 0 - 7 or 8 bar would be much more usefull. Oh well, better that the needle stays on the upper peg instead of the bottom one!

1980 240d 4sp
ASE Master Auto Technician
ASE Advanced Engine Performance
Old 09-07-1999, 01:50 AM
Robert W. Roe's Avatar
Registered User
Join Date: May 1999
Location: Lehigh Valley PA
Posts: 1,321
I never thought about MB oil pressure gauges' calibration, until now, that is. All I can think of is perhaps that by dropping from 2 bar (at idle) to 0 would be a near-full-scale deflection of the needle, and be easier to spot than a drop of a quarter of the useful range of a 8 or 10 bar scale.

I know this is a stretch, and also wonder if my car has a low oil pressure idiot light, to back up the gauge. I know, MB would say it's redundant, etc., but I'd be quicker to spot a red light coming on rather than a drop in a gauge (especially at night).

Robert W. Roe
1984 300SD 165,445 miles

Closed Thread


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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Multiple problems with newly acquired 1991 300SL. Steve190E 2.3 Tech Help 1 11-22-2004 05:48 PM
Newly acquired 300D - trap oxidizer jksoft Diesel Discussion 28 10-21-2004 10:15 PM
Beautiful 2 owner 240D for sale - DC area tenknots Mercedes Cars For Sale 5 09-09-2004 11:02 AM
Pics of my newly acquired E500 Daesun Performance Paddock 21 02-03-2002 02:44 PM
Will Alum 240D Air Cleaner Fit on 300D tcane Diesel Discussion 0 01-10-2002 07:33 PM

All times are GMT -4. The time now is 02:11 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page