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 ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 02-01-2003, 01:04 PM
Registered User
 
Join Date: Dec 2002
Location: Suburban NYC
Posts: 57
300TD rear wiper

The rear wipers on both my 300TDs (84 & 85) don't work. Fuses are good, connections in the box are solid. Should I start checking the motors in the hatch or could I be missing something? The license plate lights and defroster in the hatch work fine.
Reply With Quote
  #2  
Old 02-01-2003, 04:31 PM
Registered User
 
Join Date: Oct 2002
Location: Portsmouth UK
Posts: 170
Hi

Not sure what you mean by 'connections in the box'...........

When I discovered mine not working I went through same fault finding process replacing fuses, putting in new switch - but ended up (some 2 years later!!) sourcing unit from breakers yard.

When I got the old motor out the operating spindle (bit wiper connects to) was seized solid. I gave it to a chum who enjoys challenges a few months ago - and said see if you can sort this one out and it doesnt matter if you break it. Must chase him up - thanks for reminding me!!

It is my view water leaks down the spindle and if you have not used your wiper for a while the corrosion produces enough 'stiction' to prevent motor operating. If you do without for a while (in my case 2 years) it is then well and truly seized together.

If they worked on you cars recently take them out and get them on the bench you may be able to save them.

Good Luck
__________________
NormanB
230 TE (W124) 1989 with 153,000 miles on the clock - hoping for at least another 100K
Reply With Quote
  #3  
Old 02-03-2003, 02:10 PM
Swedish Diesler
 
Join Date: Jan 2002
Location: Sweden
Posts: 106
I'd check the terminal at the motor so you have power there.
The wiring could be broken near the hinge area.
__________________
/Per

MB E300TDT -98
Reply With Quote
  #4  
Old 03-19-2003, 06:29 PM
Registered User
 
Join Date: Dec 2002
Location: Suburban NYC
Posts: 57
Checked wiring in the gate. Get 12 volt positive on two pins on the connector and a good ground. Old motor turned a bit, then gave up. Replacement motor from the salvage yard doesn't work at all. Is there a relay I'm missing?
__________________
Stage Wizards Lighting and sound designer
1981 SD 328,000
1985 300TD, 266,000
1984 300 TD, 267,000
Reply With Quote
  #5  
Old 03-19-2003, 06:52 PM
Registered User
 
Join Date: Oct 2002
Location: Portsmouth UK
Posts: 170
Does your 'new' motor turn freely by hand?
__________________
NormanB
230 TE (W124) 1989 with 153,000 miles on the clock - hoping for at least another 100K
Reply With Quote
  #6  
Old 03-20-2003, 08:10 AM
Registered User
 
Join Date: Dec 2002
Location: Suburban NYC
Posts: 57
No, the “new” motor doesn't turn at all because of the worm gear assembly. The motor in the gate had been disconnected from the worm gear by the previous owner. It turned when I cleaned the plug contacts but wouldn't turn when I reassembled the gears. The new one doesn't hum and doesn't turn. You're not supposed to be able to turn the wiper by hand when the gears are engaged.
__________________
Stage Wizards Lighting and sound designer
1981 SD 328,000
1985 300TD, 266,000
1984 300 TD, 267,000
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 04:39 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, 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