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 06-09-2018, 09:07 PM
Registered User
 
Join Date: Oct 2008
Location: Northeastern Massachusetts
Posts: 179
Door check strap repair?

There is a VERY!? authoritative "SOURCE of MERCEDES" repairs on the internet who is posting videos on Mercedes repairs and selling parts. This very knowledgeable? person stood there in a clean shop smock talking about lack of lubrication and water damage for a door check strap, with an authoritative tone said, "These old door check straps are not repairable."
Reply With Quote
  #2  
Old 06-09-2018, 09:40 PM
Registered User
 
Join Date: Sep 2006
Location: Middle TN
Posts: 3,497
That's my understanding. Have you successfully repaired one - that lasted? They are a pita when they lock up. I grab spares when at the yard.
__________________
85SD 240K & stopped counting. 84SD 180,000. Thinking of painting both.
Reply With Quote
  #3  
Old 06-09-2018, 09:41 PM
Registered User
 
Join Date: Jul 2003
Location: Bellevue WA
Posts: 174
Door check strap.

I think that he may mean that the door check strap itself is not repairable. I have always had to get a new one and install it in place of the failed one.
__________________
87 300D 265Kmi
Factory rebuilt crate 603.96x engine at 200K
Reply With Quote
  #4  
Old 06-09-2018, 09:49 PM
cmac2012's Avatar
Renaissance Dude
 
Join Date: Dec 2004
Location: Berkeley, CA
Posts: 11,107
I replaced three in my car when I got it. Would have been a PITA to try fixing the old ones, there was some rust, the springs were shot, one had one of the big steel balls out. The car came from a rainy zone. I found some at Bay Area boneyards off of more recent gasser 126s, lubed them a bit and they work splendid.
__________________
cmac

1986 300SDL, 315K
1987 BMW 325i, 440K
Reply With Quote
  #5  
Old 06-09-2018, 09:51 PM
JHZR2's Avatar
Registered User
 
Join Date: Jan 2002
Location: New Jersey
Posts: 3,654
Unscrew the old one, put the new one in.

Paint the exposed portion for correctness if desired.

Ive seen some re-lube them, but the ones Ive bought have lube gooped in there already.

Ive never had one break and snag, they just seem to lose their ability to hold the door in place.

Not sure if that itself is repairable, and Ive never really looked into why it happens...
__________________
Own:
1981 240D (73K)
1982 300CD (162k)
1991 350SD (113k)
1998 Chevrolet S-10 ZR2 (62K)
2011 BMW 135i cv (14k)
2014 Honda Odyssey (6k)
2015 Honda Accord Hybrid (5k)
Had:
2008 VW Rabbit (70k)
2004 SAAB 9-3 (83k)
1991 BMW 318i (183K)
1983 300D (228K) (wrecked by at-fault uninsured driver)
1985 300D (233K) (now in FL)
1994 Acura Integra (188k) (Rusted out)
1992 Toyota 4Runner (72k) (Rusted out)
1990 Daihatsu Rocky (??) (No parts)
Reply With Quote
  #6  
Old 06-09-2018, 10:01 PM
Registered User
 
Join Date: Oct 2008
Location: Northeastern Massachusetts
Posts: 179
Yeah the door was stuck! in the opened position on the left side of the car while parked on the street.
Reply With Quote
  #7  
Old 06-09-2018, 10:13 PM
eatont9999's Avatar
Registered User
 
Join Date: Jan 2012
Location: Dallas, TX
Posts: 1,948
I replace them, not rebuild them. You should be able to find new ones online.
__________________
1991 F250 super-cab 7.3 IDI. (rebuilt by me) Banks Sidewinder turbo, hydroboost brakes, new IP and injectors.
2003 S430 - 107K
1983 300SD - Tanoshii - mostly restored ~400K+.
1983 300SD - Good interior. Engine finally tamed ~250K.
Monark Nozzle Install Video - http://tinyurl.com/ptd2tge
Reply With Quote
  #8  
Old 06-09-2018, 10:17 PM
Registered User
 
Join Date: Oct 2008
Location: Northeastern Massachusetts
Posts: 179
I think that if a door check strap is not repairable due to lack of lubrication we, "here on the forum" are all in big trouble with these old cars.
Reply With Quote
  #9  
Old 06-09-2018, 10:25 PM
Diseasel300's Avatar
Registered User
 
Join Date: May 2016
Location: Texas Hill Country
Posts: 4,000
It has nothing to do with lack of lubrication. If the strap is still functioning, add grease. It'll prolong its life.

Once it starts creaking and groaning, it's not long for this world. After it locks up, it's history. It has nothing to do with whether or not you can lubricate it, it has everything to do with corrosion and wear making it infeasible to repair. You can throw all the grease you want in there and it'll still jam up because the sliding surfaces are galled and rust is present internally.

For the amount of time and effort required just to pull the thing out, you're time and money ahead to just replace it. Especially if you're in a parking lot one day and the thing jams open. Super convenient to have to tear a door down to remove a jammed check strap.
__________________
'11 Honda Accord EX - "The Daily" 64K
'83 500SL Euro - "The Money Pit" 116K
'86 300SDL - "The Diseasel" 186K
The Diseasel Thread - Everything You Didn't Know You Wanted To Know
Reply With Quote
  #10  
Old 06-10-2018, 06:39 AM
optimusprime's Avatar
Trevor Hadlington
 
Join Date: May 2014
Location: Worcestershire in England
Posts: 1,161
I repaired all four check straps on my car but i dont know if yours are the same . You need a good vice to hold them in .Once the balls are out a good clean and polish plus grease up and then fit them back in to the bracket do a google on it you should find the repair the DIY i did.
Reply With Quote
  #11  
Old 06-10-2018, 10:05 AM
Shadetree
 
Join Date: Jan 2010
Location: Back in SC upstate
Posts: 1,292
Ken is a salesman.

126 Check strap repair - Mercedes-Benz Forum
__________________
84 300SD
85 380SE
83 528e
95 318ic
Reply With Quote
  #12  
Old 06-10-2018, 12:13 PM
Registered User
 
Join Date: Mar 2009
Location: San Diego
Posts: 2,847
Personally I would just replace them. Everything is repairable. It is a matter of time and money( if you can buy the parts). The shell can be reused for sure. The innards may not be available or costs more than the whole unit. One needs to know when to repair, when to let go.
__________________
Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.

W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html

2 x 87 300SDL
1 x 87 300D
1 x 87 300TDT wagon
1 x 83 300D
1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry.
Reply With Quote
  #13  
Old 06-10-2018, 12:34 PM
Registered User
 
Join Date: Apr 2003
Location: Phoenix Arizona. Ex Durban R.S.A.
Posts: 3,223
Quote:
Originally Posted by ah-kay View Post
Personally I would just replace them. Everything is repairable. It is a matter of time and money( if you can buy the parts). The shell can be reused for sure. The innards may not be available or costs more than the whole unit. One needs to know when to repair, when to let go.
This. Pretty much everything might be repairable if you have the extra vehicle/vehicles to drive while the one in question is out of commission. You can actually find needed parts, you have the money to buy what is needed, you have the skills to do the job.

It's a question of balance between having a life and spending your life repairing...

- Peter.
__________________
81 240D stick. 316000 miles at purchase. 340000 now
2000 GMC Sonoma
Formerly...
2002 Kia Rio. Worst crap on four wheels
1981 240D 4spd stick. 389000 miles. Deceased Jan 08
1984 123 200
1979 116 280S
1972 Cadillac Sedan DeVille
1971 108 280S
Reply With Quote
  #14  
Old 06-10-2018, 12:41 PM
Shadetree
 
Join Date: Jan 2010
Location: Back in SC upstate
Posts: 1,292
Quote:
Originally Posted by ah-kay View Post
Personally I would just replace them. Everything is repairable. It is a matter of time and money( if you can buy the parts). The shell can be reused for sure. The innards may not be available or costs more than the whole unit. One needs to know when to repair, when to let go.
I agree and am more apt to replace any component if the OEM is available at a reasonable cost. I have a couple of the door straps which have been taken off my car due to them failing to hold the door stead. I may take a look at them someday if I get bored.

I completely agree that one should not expect to rebuild a check strap on a car that is used as a daily driver without having a proper replacement on hand in case it can't be repaired.
__________________
84 300SD
85 380SE
83 528e
95 318ic
Reply With Quote
  #15  
Old 06-10-2018, 01:28 PM
Registered User
 
Join Date: Feb 2016
Location: North New Jersey
Posts: 390
I replaced one. I took a goodnight look at the broken one - it wasnít jammed, just didnít hold at the positions. There would be no good way to repair it without considerable work and who knows how long repair would last. These are replaceable/disposable wear parts. Thatís how the door system was designed.
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 10:13 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page