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 > Car Audio and Multimedia

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 02-19-2003, 01:08 AM
Registered User
 
Join Date: Feb 2003
Location: SF Bay Area, CA
Posts: 9
Question Help! Can't remove rear passenger seats to check factory amps!

Could somebody pls tell me how to remove the rear passenger seat (power seats) on my a 1990 560 sel? I'm trying to get to the factory amps (w/c I was told is behind the rear back seats) All my left speakers have no sounds at all...I want to check possible loose connections back there. I wanted to check behind the Becker radio unit first but I don't have the MB tool for pulling the face out. I removed the 2 10mm bolts at the bottom of the rear seat but couldn't remove the seat w/o forcing it or breaking something inside. Am I even headed in the right direction?


Thanks in advance.
Andy
__________________
Andy
1990 MBenz 560 SEL 122K
1994 Alfa Romeo 164LS 82K
1991 Alfa Romeo 164L 110K
previously owned German cars:
1985 500 SEL Lorinser
1978 MBenz 450SLC Red/beige
1980 Mbenz 300SD
1978 Porsche 928
1976 BMW 530
1973 300 SEL 4.5
1971 BMW 2002
Reply With Quote
  #2  
Old 02-19-2003, 12:44 PM
goldstone's Avatar
W126 Lover
 
Join Date: Oct 2002
Location: Dutchess County, New York
Posts: 156
I don't have power seats in the rear of my 126, so I'm not sure if the configuration is the same. But, on the assumption that it is, I offer the following:

1) The seatback is held by THREE fasteners, the two you've found plus another in the center. (If you slightly lower the armrest and look through the seatbelt assembly, you'll see the third.)

2) The seatback needs to be lifted up and then brought toward you to release it. (If you have someone to help you, it goes a lot easier.)

3) Amps are located on either side.

My guess is you've got a bad left amp. I understand that this is a pretty common problem. If you don't find something obvious (like a loose wire, etc.), try swapping the amps to see if my guess is right.

Good luck.
__________________
Eric

1991 560SEL-Euro (185,000 miles)
1989 420SEL (Retired from daily use at 325,000 miles; Use as donor vehicle)
Reply With Quote
  #3  
Old 02-19-2003, 04:09 PM
Registered User
 
Join Date: Feb 2003
Location: SF Bay Area, CA
Posts: 9
Unhappy

Thanks for your suggestion. Unfortunately I am still battling the removal of the bottom seat cushion so I can get to the backrest screws. The 2 bolts I found are at the bottom of the seat cushions. The CD unfortunately did not address power seats removal. Assuming I am eventually able to get to the amps, what are my options if left one is fried? Is it advisable to replace them both with better or newer more efficient amps? Has anybody gone this route before?

Thanks,
Andy
__________________
Andy
1990 MBenz 560 SEL 122K
1994 Alfa Romeo 164LS 82K
1991 Alfa Romeo 164L 110K
previously owned German cars:
1985 500 SEL Lorinser
1978 MBenz 450SLC Red/beige
1980 Mbenz 300SD
1978 Porsche 928
1976 BMW 530
1973 300 SEL 4.5
1971 BMW 2002
Reply With Quote
  #4  
Old 02-19-2003, 04:28 PM
goldstone's Avatar
W126 Lover
 
Join Date: Oct 2002
Location: Dutchess County, New York
Posts: 156
Sorry. I didn't realize you were talking about the seats themselves. Someone else is going to have to help you with these since they differ from mine.

As for amps, I recently upgraded my headunit and opted to bypass the stock amps. Since I'm not using mine, if you do indeed find that one of yours has passed-on to Hi-Fi heaven, just let me know. I'm sure we can work out a good deal.

Cheers!
__________________
Eric

1991 560SEL-Euro (185,000 miles)
1989 420SEL (Retired from daily use at 325,000 miles; Use as donor vehicle)
Reply With Quote
  #5  
Old 02-19-2003, 09:21 PM
Ashman's Avatar
Registered User
 
Join Date: Sep 2000
Location: Sherman Oaks, CA
Posts: 4,749
I think there should be a release for the cushion.

My car - no power seats, has a little red tab just barely sticking out of the center of the bottom of the seat cusion per side.

Perhaps you have something similar on yours. But with the power rear seats it may be different.

Alon
__________________
'92 300CE - Sold
2004 C240 - 744 - C7 Wheels - Android Radio
2002 C320 - 816 - Sport Wagon
Reply With Quote
  #6  
Old 02-19-2003, 11:14 PM
Registered User
 
Join Date: Feb 2003
Location: SF Bay Area, CA
Posts: 9
Unhappy

Many thanks for the all the suggestions I received from you all. I just got the owners manual by mail from MBenz this pm and immediately referred to section for seat cushion removal (p 99). It said "On vehicles with power rear seats, the rear seat cushion can best be removed and installed by an authorized MERCEDES BENZ dealer"! Bummer This probably explains why the previous owner never had this speaker/amps problem repaired.

I'll post the results and my experience if and when I decide to go to the dealer...

Andy
__________________
Andy
1990 MBenz 560 SEL 122K
1994 Alfa Romeo 164LS 82K
1991 Alfa Romeo 164L 110K
previously owned German cars:
1985 500 SEL Lorinser
1978 MBenz 450SLC Red/beige
1980 Mbenz 300SD
1978 Porsche 928
1976 BMW 530
1973 300 SEL 4.5
1971 BMW 2002
Reply With Quote
  #7  
Old 02-20-2003, 01:57 AM
goldstone's Avatar
W126 Lover
 
Join Date: Oct 2002
Location: Dutchess County, New York
Posts: 156
Smile We Don't Need No Stinking Dealers!!!

Andy,

Don't throw in the towel just because the Mercedes owners manual suggests you should! Post your question in the TECH section of this forum. It gets far more traffic, and lord knows there are guys there who have rebuilt 560 SEL's from the ground up.

Can't hurt to try there, and I'm betting you get your answer and save a bundle to boot!!!
__________________
Eric

1991 560SEL-Euro (185,000 miles)
1989 420SEL (Retired from daily use at 325,000 miles; Use as donor vehicle)
Reply With Quote
  #8  
Old 02-21-2003, 01:10 PM
Registered User
 
Join Date: Feb 2001
Posts: 171
Hey Andy:

Welcome to the Shopforum. I own a 1990 560sel as well. Had my left amp fried first, and later on the right one went away quickly (less than 3 weeks later). A better aftermarket amp is probably better idea. Then again, if you are looking for minimum hassle / elbow grease, just find an used one cheap somewhere and replace it. The stock amp has a 10 pin connector to it and it's a very easy swap.

To remove the bottom cushion, just take out the 2 bolts on the bottom of either side, and it should slide right out. Don't be afraid to use brute force. MB cars are made to withstand a little abuse here and there. I think the cushion only goes partly out, but you should gain enough clearance to look below the seatbacks and find the 3 bolts that someone else has mentioned. Remove the whole seatback and you should see the factory amps on either side.

The 10 pin connectors that goes into the factory amps are a good source for the oem speaker leads. Just connect your after market head unit's speaker outs into either side's connectors. You should run 2 sets of wires to either connector: 1 set of FR (inlcluding + And - ), 1 set of RR. 1 set of FL, 1 set of RL. All the other power connections for your aftermarket unit can be found from the stock connectors of the original becker unit.

I've got a JVC Mp3 unit connected to the oem speakers. It sounds wonderful and is much more convenient than the older unit. I love how you can play 100+ songs with one single cd and switch the songs around with a nifty little remote. The only loss was the ability to extend the antanna in various heights.

Look for posts from Longston and Scott. They helped me a lot with my project.

Good Luck

Last edited by Maruzo; 02-21-2003 at 01:15 PM.
Reply With Quote
  #9  
Old 02-24-2003, 12:28 AM
Registered User
 
Join Date: Feb 2003
Location: SF Bay Area, CA
Posts: 9
Wink Thanks to Eric, Alon, Goldstone, Maruzo

I finally got the seats out and confirmed that my left amp is fried and my left speaker wirings are not sending clear signals. So I will look for a decent head unit and wire the speakers directly, as some of you did. Many thanks for your great advice and suggestions. I'll let you know what unit I end up with and the results.

Ciao,

Andy
__________________
Andy
1990 MBenz 560 SEL 122K
1994 Alfa Romeo 164LS 82K
1991 Alfa Romeo 164L 110K
previously owned German cars:
1985 500 SEL Lorinser
1978 MBenz 450SLC Red/beige
1980 Mbenz 300SD
1978 Porsche 928
1976 BMW 530
1973 300 SEL 4.5
1971 BMW 2002
Reply With Quote
  #10  
Old 02-24-2003, 02:07 PM
goldstone's Avatar
W126 Lover
 
Join Date: Oct 2002
Location: Dutchess County, New York
Posts: 156
Sorry about your fried amp, but if my experience is representative, it was probably the best thing that could happen to that audio system in your 560SEL, since getting a newer head unit and bypassing those old amps will make a HUGE difference!

By the way, what was the trick for getting those power seats out?
__________________
Eric

1991 560SEL-Euro (185,000 miles)
1989 420SEL (Retired from daily use at 325,000 miles; Use as donor vehicle)
Reply With Quote
  #11  
Old 02-26-2003, 04:01 AM
Mattman
Guest
 
Posts: n/a
The seat bench is bolted in by two 10mm bolts, one on the left at the bottom and the other on the right. My seat also had doublesided tape on the rails that the seat sits on so I had to pull up and towards me to get it off.

Matt.
Reply With Quote
  #12  
Old 02-26-2003, 11:53 PM
Registered User
 
Join Date: Feb 2003
Location: SF Bay Area, CA
Posts: 9
Quote:
Originally posted by goldstone
Sorry about your fried amp, but if my experience is representative, it was probably the best thing that could happen to that audio system in your 560SEL, since getting a newer head unit and bypassing those old amps will make a HUGE difference!

By the way, what was the trick for getting those power seats out?
Hi Goldstone,

Thanks for those helpful hints. What really did the trick was "brute force" as Maruzo suggested . The seat came off with a loud "crack" because the double sided tape was I guess stuck frozen. I thought I broke something but fortunately nothing. Yes looks like my left amp may be in Hi Fi heaven, what did you have in mind for your amp?

Andy
__________________
Andy
1990 MBenz 560 SEL 122K
1994 Alfa Romeo 164LS 82K
1991 Alfa Romeo 164L 110K
previously owned German cars:
1985 500 SEL Lorinser
1978 MBenz 450SLC Red/beige
1980 Mbenz 300SD
1978 Porsche 928
1976 BMW 530
1973 300 SEL 4.5
1971 BMW 2002
Reply With Quote
  #13  
Old 02-27-2003, 09:26 AM
goldstone's Avatar
W126 Lover
 
Join Date: Oct 2002
Location: Dutchess County, New York
Posts: 156
Andy,

If you indeed decide that you just want to replace that dead amp, let me know. As noted in an earlier post, I'm not using my stock amps anymore, so I'd be willing to part with one/both for a VERY reasonable price.

If you're interested, let me know and I'll contact you privately.
__________________
Eric

1991 560SEL-Euro (185,000 miles)
1989 420SEL (Retired from daily use at 325,000 miles; Use as donor vehicle)
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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 03:09 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, 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