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

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 12-16-2004, 09:02 PM
Registered User
 
Join Date: Sep 2004
Location: Kittrell, NC
Posts: 681
changing oil cooler lines

two mechanics have told me that to change the oil cooler lines on my 1982 300sd that I have to unbolt the motor from the left mount and jack up the engine to get them out and changed. Some of you have said this is not so. Ever done this job on a 300sd yourself? Did you have to do this? I am short a floor jack to do as they say. While I have it unbolted, assuming I have to or if I let the mechanic do the job, should I go ahead and have him replace the left motor mount since I have never changed them?

__________________
1982 300SD Light Blue
2002 Honda Accord SE
1974 Toro Wheel Horse Tractor
2000 Toyota Tundra Pickup
Reply With Quote
  #2  
Old 12-16-2004, 09:58 PM
1985 300SD Sady's Avatar
Star Crazy
 
Join Date: Sep 2004
Location: Cincinnati, Ohio
Posts: 1,038
NO

You do NOT have to jack up the engine and unbolt the left motor mount! I have personally done this myself, 4 times.

Although, It would be a bit easier to do it this way, by no means does it HAVE to be done this way.

After you have the oil cooler lines unattached at both ends, you just simply snake them out, try to remember which way they came out, and when you put them back in, go the same way they came out. I had no problems doing this in under an hour. But, Ive gotten good at it.
Reply With Quote
  #3  
Old 12-16-2004, 10:17 PM
Registered User
 
Join Date: Apr 2000
Posts: 460
Read up:

You CAN replace oil cooler line without removing the motor mount.

Greg
Reply With Quote
  #4  
Old 12-16-2004, 10:25 PM
Registered User
 
Join Date: Jun 2004
Location: West of Ft. Worth. TX
Posts: 4,186
Quote:
Originally Posted by 1985 300SD Sady
......done this myself, 4 times..... Ive gotten good at it.
Your way ahead of me there. I have only done it once with a small bottle jack. Certainly, appears to be possible and just have not done it without raising the engine.

If you don't have a jack give it a shot.

( We're not talking about raising the engine more than an inch or so.)
__________________
Sam

84 300SD 350K+ miles ( Blue Belle )
Reply With Quote
  #5  
Old 12-17-2004, 08:12 AM
Registered User
 
Join Date: Sep 2004
Location: Kittrell, NC
Posts: 681
How long do new oil cooler lines last?

How many miles do these lines last? How often will they need to be replaced on average?
__________________
1982 300SD Light Blue
2002 Honda Accord SE
1974 Toro Wheel Horse Tractor
2000 Toyota Tundra Pickup
Reply With Quote
  #6  
Old 12-17-2004, 11:00 AM
Palangi's Avatar
L' Résistance
 
Join Date: Dec 2000
Location: Republique de Banana
Posts: 3,496
This would be just a SWAG, but it seems to me the life of the hoses is about 20 years, regardless of mileage. If they're weeping, it's time to change them, if not, just keep an eye on them.
__________________
Palangi

2004 C240 Wagon 203.261 Baby Benz
2008 ML320 CDI Highway Cruiser
2006 Toyota Prius, Saving the Planet @ 48 mpg
2000 F-150, Destroying the Planet @ 20 mpg



TRUMP .......... WHITEHOUSE
HILLARY .........JAILHOUSE
BERNIE .......... NUTHOUSE
0BAMA .......... OUTHOUSE
Reply With Quote
  #7  
Old 12-17-2004, 11:34 AM
Registered User
 
Join Date: Jun 2004
Location: West of Ft. Worth. TX
Posts: 4,186
My car has over 320K on the original lines. I agree, it might have something to do with aging. Of course, heat, vibration, corrosion, etc..., all factor in.
__________________
Sam

84 300SD 350K+ miles ( Blue Belle )
Reply With Quote
  #8  
Old 12-17-2004, 11:57 AM
Registered User
 
Join Date: Apr 2000
Posts: 460
When you buy your replacement hoses PLEASE go right to the dealer and get the OEM hoses. The first time I did this job I got aftermarket hoses from a reputable online Mercedes parts house. These weren't no-name hoses, mind you, but stamped with Continental's emblem. Unfortunately, the second day after I installed it the hose burst on me! Thank God I was only making a short trip and noticed the oil all over the place when I parked. I stopped the engine before all the oil pumped out and took the engine out. I then went to the Mercedes dealer and bought the hoses. This was actually stamped with the Mercedes star and had a factor part number on it. No problems with this hose. I think there is a good chance that the factory hose uses rubber from Continental as well, since Continental is a huge German company, but perhaps the factory hose uses a better grade of rubber line than the aftermarket company? Whatever the case, in my experience this is one part I would not trust to the aftermarket. The consequences from a failure are too great.

Greg
Reply With Quote
  #9  
Old 12-17-2004, 12:40 PM
dieseldiehard's Avatar
Dieseldiehard
 
Join Date: Oct 2002
Location: Bay Area No Calif.
Posts: 4,368
GregS is right on this subject. I know a shop that installed new aftermarket hoses on a customers car that blew one the next day, fortunately he stopped the engine before any damage occurred but it had to be towed back. If you examine the type of hose material in the OE cooler hoses you will see its a layered hose and very tough. Aftermarket hoses use smooth rubber hose that feels softer and the crimps are not as good as OE hoses. I think the crimps are what fail with all the snaking that is necessary to lay in the lower hose especially, they get stressed and can then blow out when cold oil hits them under pressure (doesn't cold oil have higher pressure than hot?)

Thanks GregS, for a word to the wise!
Don't risk your engine on a few bucks savings.
Oh, this reminds me I need to order oil cooler hoses for the '83 300D (make that my new years resolution #1) I believe they are original and 220K+ on them!
__________________
'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!
Reply With Quote
  #10  
Old 12-17-2004, 12:48 PM
Registered User
 
Join Date: Apr 2001
Location: So. California
Posts: 744
I wholeheartedly agress with Greg, get the factory hoses. With my 20% discount off factory parts, the cooler lines are about the same price as the Conti aftermarket lines from any of the on-line sources. The factory hose material appears to be of better quality. Its a wrapped style hose, the Conti hose I used was a smooth hose. I used Conti lines on my previous 300D and they started leaking after 35K miles.
__________________
84 300DT Puke Yellow. Totalled after 438,000
84 300DT Orient Red. 169,000 (actual mileage may vary)
2002 Explorer EB (wife's)
Reply With Quote
  #11  
Old 12-17-2004, 06:35 PM
wolf_walker's Avatar
Zen And The Art Of Diesel
 
Join Date: Dec 2003
Location: Oklahoma City
Posts: 2,050
Wonder if the local hyd supply joint we use for the semi's stuff at work can make up some in braided stainless?

Tidbitt, Volvo turbo's have factory braided stainless oil cooler lines.. I thought it was pretty swanky of them..
__________________
One more Radar Lover gone...
1982 VW Caddy diesel 406K 1.9L AAZ
1994 E320 195K
Reply With Quote
  #12  
Old 12-17-2004, 06:40 PM
Registered User
 
Join Date: Sep 2004
Posts: 8,971
Quote:
Originally Posted by GregS
When you buy your replacement hoses PLEASE go right to the dealer and get the OEM hoses.
Greg
You do not necessarily have to go to a dealer to obtain OE parts.
Reply With Quote
  #13  
Old 12-17-2004, 08:36 PM
Registered User
 
Join Date: Oct 2004
Posts: 20
key notes to be taken from previous posts, make sure you know the path they were installed. Also use mercedes parts, I used a hydrolic shop under 60 to repair both hoses and the rubber hose looked great even over coated with Kevlar brading wow, any way it didn't bend correct and my lack of inspection after installation and lowering the motor down (note did not remove L moter mount)(note removed oil filter housing instead) the fan belt cut through the kevlar and rubber hose part and now I am replacing a severally knocking engine($1100. used motor plus 175shipping and 300-400 labor on install so far!) Also the guy who did it in 1 hour, is speedo/ speedy Gonzalis!!!! I am not a mechanic but I play one on the weekends 8 hours later the hoses were out and in. Good luck my advice go with the expensive mercedes parts that will possibly last another 20 years its cheaper!
Ferg
Reply With Quote
  #14  
Old 12-17-2004, 09:03 PM
mb123mercedes
Guest
 
Posts: n/a
Quote:
Originally Posted by tangofox007
You do not necessarily have to go to a dealer to obtain OE parts.

We all are waiting to find out how?

Louis.
Reply With Quote
  #15  
Old 12-18-2004, 12:04 AM
Registered User
 
Join Date: Sep 2004
Location: Kittrell, NC
Posts: 681
Mercedes OE parts at discount

Let me tell you - you need to know that you absolutely can get Mercedes OE parts at discount. I ordered a part from Rusty or Tom at 800-741-5252. My part was an interrior trim part. It came all the way from Germany, was shipped to me in a Dailmer-Benz box from Beck Mercedes in Charlotte, NC to my Nashville, NC home. It was absolutely original and heavily discounted cause I checked the price at the dealer first. www.***************

__________________
1982 300SD Light Blue
2002 Honda Accord SE
1974 Toro Wheel Horse Tractor
2000 Toyota Tundra Pickup
Reply With Quote
Reply

Bookmarks

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 06:10 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