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 01-01-2002, 01:22 PM
lakelover
Guest
 
Posts: n/a
Transmission Virus

I apologize for this long note but I'll really appreciate your adise.
My '88, 420 SEL, 77K miles, has the dreaded reverse-gear-itis. Reverse has been slow to engage. I changed the ATF and filter and it worked much better, then a couple of days ago I thought I had lost it altogether. I rev the engine and nothing happens for several seconds then it engages and the car shutters as it backs. Previously, before the fluid change, the shift was delayed and if I was parked down hill, it would kick hard into reverse. (All forward gears shift smoothly.) I've searched this form and others. I hope for a miracle fix but the bottom line seems to be a trip to a dealer or transmission shop, and big bucks which I don't have. I read somewhere that the clutch pack can be replaced without removing the transmission. Is this true? I've also read that most dealers and many transmission shops will advise a replacement transmission. But I've also read that some shops will work on the transmssion without tearing it out. Can any one recommend a shop in Dallas, or preferably in northeast Texas (Longview, Tyler, Mt. Pleasant, Sulphuir Springs) that is trustworthy and "reasonable?"
Reply With Quote
  #2  
Old 01-01-2002, 02:17 PM
Mike Murrell's Avatar
Registered User
 
Join Date: Feb 2000
Posts: 2,351
Lakelover:

On another MB WEB site, I've heard more than one person say good things about the MB dealer in Tyler, Texas. I believe he is also an Oldsmobile dealer.

Using the SEARCH facility here, key in "reverse" in the search field and click on title only. Some posts indicated that repairs could be done with tranny in car. You won't know 'til a pro checks it out.
__________________
Mike Murrell
1991 300-SEL - Model 126
M103 - SOHC
"Fräulein"
Reply With Quote
  #3  
Old 01-01-2002, 02:23 PM
Registered User
 
Join Date: Jul 2000
Posts: 638
no reverse sel 420 fix it

The clutch pack that engages for reverse is the 'front' one in the transmission. In all probability, the lip seal around the input shaft has cracked, allowing the apply pressure to leak out.


Since this is the first one behind the pump, the tranny does not have to be completely disassembled.

I has this done to mine from a 89 560 SEL. The tranny work, including parts was only $150, and done by a shop that does all the MBZ and BMW trannys here in Houston (and authorized to put the factory Remanufactured stamp on them!


Replacement clutch disks and seals are inexpensive ($25).

The tranny removal/reinstallation labor will likely cost $300-$400

No need to rebuild the entire tranny.
Reply With Quote
  #4  
Old 01-01-2002, 04:02 PM
lakelover
Guest
 
Posts: n/a
Thanks for your encouraging replies and referral. Maybe my tranny problem won't cost me an arm and a leg after all. I'm crossing my fingers.
Reply With Quote
  #5  
Old 01-02-2002, 09:26 PM
lakelover
Guest
 
Posts: n/a
Transmission repair quotes

I've made a few tranny service contacts and they're not encouraging. Classic Olds/Mercedes in Tyler, Tx. quoted up to $3,000 for a replacement and $2,400 for pulling the tranny and analysis. I also checked with a couple of transmission specialists. One said it could run over $2,000. The best quote was $1,200 for replacing the clutch bands and/or replacing the modulator and $150 to $200, if a simple adjustments would fix the problem (whatever they do is warrented for 12 months or 12K). I am concerned about about turning the car over to a shop that is not a mercedes specialist but I may have to risk it to get a job that I can afford.
Reply With Quote
  #6  
Old 01-03-2002, 07:05 PM
dpetryk's Avatar
Electrons can do anything
 
Join Date: Sep 2001
Location: Houston, Texas
Posts: 1,071
Hey Jerry, I just overhauled 2 identical transmissions just like yours. It costs about $200 for the parts and a lot of work to get it in and out of the car. Your description of the delay and shuddering in reverse is exactly how mine failed. The tranny shops want you to believe it is difficult and expensive. But in fact it is really very simple if you know the tricks. I would be very happy to help you if I can assist some how.

One of the options I investigated before I decided to rebuild my own was a MB rebuilt unit from the dealer. They can be had from MB for about $1700. Then whatever it takes to put it in. Two year warrenty.
__________________
I got too many cars!! Insurance eats me alive. Dave

78 Corvette Stingray - 3k
82 242 Turbo Volvo - Manual - 270k
86 300e 5 speed manual - 210k
87 420sel - 240k
89 560sl - 78k
91 420sel - 205k
91 560sel - 85k
94 GMC Suburban - 90k
97 Harley Davidson Heritage Softail - 25k
00 GMC Silverado 1 ton 30k
Reply With Quote
  #7  
Old 01-03-2002, 07:18 PM
dpetryk's Avatar
Electrons can do anything
 
Join Date: Sep 2001
Location: Houston, Texas
Posts: 1,071
Where are you located? I cannot find Lake Cypress Springs.
__________________
I got too many cars!! Insurance eats me alive. Dave

78 Corvette Stingray - 3k
82 242 Turbo Volvo - Manual - 270k
86 300e 5 speed manual - 210k
87 420sel - 240k
89 560sl - 78k
91 420sel - 205k
91 560sel - 85k
94 GMC Suburban - 90k
97 Harley Davidson Heritage Softail - 25k
00 GMC Silverado 1 ton 30k
Reply With Quote
  #8  
Old 01-03-2002, 07:59 PM
Capt Kirk's Avatar
w00t
 
Join Date: Oct 2001
Location: Dallas, TX
Posts: 601
Good Mechanic in DFW area

The place I goto to get advice on my 300D is German European Imports here in Plano. All the mechanics there are certified MB mechanics and have been working on them for a really long time (on the wall they have one plaque from 1974). They're very honest and will explain what needs to be done, and if there are options they'll give you em.


You can reach them at (972) 422-7780. The head mechanic's name is Sam, if you want to talk with him. They are located at Ave K and Plano Parkway (1100 Summit #106 is the address on their Business card)


As far as replacing the Transmission, for my car. The Tranny costs $1800 for a rebuilt unit from the MB dealer (Ewing ********)
__________________
2005 Audi A4 1.8T CVT -Silver/Black "Siegfried"

1982 300D - Silver/Blue "Ralph" -For Sale:
http://www.peachparts.com/shopforum/mercedes-cars-sale/119226-1982-300d-sale.html#post852260

1989 VW Diesel Jetta Blue/Blue "Bodo" RIP
Reply With Quote
  #9  
Old 01-03-2002, 08:40 PM
lakelover
Guest
 
Posts: n/a
Dave . . . Lake Cypress Springs is between Mt Vernon and Winnsboro and two hours east of Dallas, off I30. It would be quite rewarding to do my own tranny rebuild, but I'd only feel confident if somebody who knew the "tricks" was close by. Too bad I'm a good day's drive away from Houston. I've been to a web site that gives a lot of overhaul detail and overhaul kits: www.transonline.com. It appears that the toughest part of an overhaul is pulling the transmission and replacing it. BTW, what all did you replace, fix, adjust in your tranny rebuild?

Capt. Kirk. . . I'll give the Plano outfit a call. Thanks for the referral. That's give me another qualified perspective to my problem and probable cost.

Jerry
Reply With Quote
  #10  
Old 01-03-2002, 08:58 PM
dpetryk's Avatar
Electrons can do anything
 
Join Date: Sep 2001
Location: Houston, Texas
Posts: 1,071
I replaced all the friction parts except for B2, and the vacuum modulator, all seals , O rings etc. The B2 band almost never needs to be replaced. It is tuff as nails (so the experts say). I purchased a manual from ATSG and a I also used the info from transonline.com and a little advice from a rebuilder near houston. Only needed a 30mm deepwell socket to get the driveshaft nut off. No other special tools were needed. I did use an arbor press a couple of times. After I was done, I took it to Jaggi Import Export www.jie.com to have it dyno tested ($80). I wanted to be sure that I did it right before putting it back in the car. He said that is worked great, so I was a happy man. He adjusted the modulator pressure and did whatever other adjustments were necessary. He is a real nice guy.

Cost = parts $200, dyno $80, = total of about $300.

I have to say that the feeling of accomplishment is very rewarding and makes it all worth while to me. I had plenty of time and wanted to learn how the automatics work.
__________________
I got too many cars!! Insurance eats me alive. Dave

78 Corvette Stingray - 3k
82 242 Turbo Volvo - Manual - 270k
86 300e 5 speed manual - 210k
87 420sel - 240k
89 560sl - 78k
91 420sel - 205k
91 560sel - 85k
94 GMC Suburban - 90k
97 Harley Davidson Heritage Softail - 25k
00 GMC Silverado 1 ton 30k

Last edited by dpetryk; 01-03-2002 at 09:08 PM.
Reply With Quote
  #11  
Old 01-03-2002, 09:00 PM
dpetryk's Avatar
Electrons can do anything
 
Join Date: Sep 2001
Location: Houston, Texas
Posts: 1,071
I have a freshly rebuilt one sitting here ready to go, wana make a deal?
__________________
I got too many cars!! Insurance eats me alive. Dave

78 Corvette Stingray - 3k
82 242 Turbo Volvo - Manual - 270k
86 300e 5 speed manual - 210k
87 420sel - 240k
89 560sl - 78k
91 420sel - 205k
91 560sel - 85k
94 GMC Suburban - 90k
97 Harley Davidson Heritage Softail - 25k
00 GMC Silverado 1 ton 30k
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Auto -> Manual Transmission Conversion Has Begun. R Leo Diesel Discussion 341 08-15-2016 08:21 AM
1999 S500 with 722.6 Automatic Transmission Filled for life? MBD Tech Help 29 07-30-2011 12:51 PM
transmission slip reverse 722.4 bgarvey Tech Help 2 02-23-2005 01:39 AM
99 S320 Transmission noise BENZ TEK Tech Help 0 06-10-2003 11:32 PM
M116 removal from 82 380SL rstarkie Tech Help 3 11-14-2002 08:03 AM



All times are GMT -4. The time now is 11:36 AM.


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