[R129 SL] FW: schematic request

[Adam Gage]

PLEASE REMOVE MY NAME FROM THIS MAILING LIST


----- Original Message ----- 
From: "mooncusser" <moon.cusser at verizon.net>
To: "SL Mailing List" <r129list at mbcoupes.com>
Sent: Tuesday, April 10, 2007 1:45 PM
Subject: Re: [R129 SL] FW: schematic request



> you can email pictures direct to my address...

> On Tue, 10 Apr 2007 22:31:33 +0200, you wrote:

>

>>On the front side of your seat you can find two Philips cross screws.

>>Turn them loose and pull them out. They are about 2 inches long and hold 

>>the

>>front of your seat clamped on the bar.

>>Then you can pull the front of your seat up, and lift it out off the two

>>holes under the backrest.

>>Now you can see the black plastic box where the relay circuit board is

>>situated.

>>You can pull of the top cover and then you see the wires with connectors.

>>Take out every connector one by one and push it back in good condition in

>>the box and try again.

>>If nothing happens for the complete range of control, you must first make 

>>a

>>measurement on the rectangle connector.

>>Open the door or set the lock switch on.

>>pen 2 must have 12 volt 25 Amps( red-white wire ) coming from fuse box 40G

>>in motor compartment just below the relay's .

>>pen 4 must have 12 volt 25 Amps( red-yellow wire) coming from fuse box 45L

>>in motor compartment.

>>pen 1 must be earth , so it is possible that there is rust and a bad

>>connection. It is mounted to the floor.

>>Clean and make a measure in resistance 0 ohm . if you don't have a ohm

>>measure equipment you can take a small 12 volt bulb and hold one lead to 

>>the

>>earth contact and the other lead to the inner contact of the cigarette

>>lighter.

>>The bulb must burn. If not or glowing just a small bit, the earth contact 

>>is

>>not good.

>>Clean again.

>>

>>I have send two pictures from the system and the connectors, but the 

>>website

>>manager must confirm first.

>>

>>Jan

>>

>>

>>

>>-----Oorspronkelijk bericht-----

>>Van: r129list-bounces at mbcoupes.com

>>[mailto:r129list-bounces at mbcoupes.com]Namens mooncusser

>>Verzonden: dinsdag 10 april 2007 21:25

>>Aan: SL Mailing List

>>Onderwerp: Re: [R129 SL] FW: schematic request

>>

>>

>>Thanks... but I can't even get my hand under the seat.

>>I changed out all fuses as suggested and plugged in a spare seat control

>>switch.

>>Seat still won't respond...

>>

>>On Tue, 10 Apr 2007 21:13:56 +0200, you wrote:

>>

>>>

>>>

>>>-----Oorspronkelijk bericht-----

>>>Van: Jan Kuylaars [mailto:J.kuylaars at kpnplanet.nl]

>>>Verzonden: dinsdag 10 april 2007 21:06

>>>Aan: SL Mailing List

>>>Onderwerp: RE: [R129 SL] schematic request

>>>

>>>

>>>Electric chairs from mercedes !

>>>

>>>seat control; first check your fuses. every seat has two fuses, the back

>>>control from left is together with

>>>the seat from right and vice versa.

>>>Then check the wires on the control box under the seats.

>>>control box; mentioned 5 connectors above 4 relai's

>>>

>>>connector above 1 relai = motor bottom seat up/down backside

>>>2nd connector= motor bottom seat up/down frontside

>>>3th connector= motor bottom seat forward and backwards

>>>4th connector= motor backrest forward and backwards

>>>5th connector= motor headrest up and down.

>>>

>>>The connectors on the other side:

>>>Just between connector 5 with 2 relai's between is the power connector.

>>>There should be 2 times 12 volt on the connector from 2 fuses in the

>>>motorcompartment

>>>Look well at the fuses because it me seem that they are good, but by age

>>>they are broken.

>>>For 3 $ you replace all the fuse by new, it is better to do after some

>>>years.

>>>On the left side is the connector from the door panel control, it give

>>power

>>>to the system if the door is open.

>>>Then you have open part and at the right against the 3 relai's there is 

>>>the

>>>connector  what go's to

>>>the backrest for saftey.

>>>When the bottom from the chair is going backwards and the backrest is

>>almost

>>>coming to the side of the car, the motor is turning the backrest forward.

>>>

>>>You can take out the control box, remove carefully the relai covers and 

>>>use

>>>very tiny sandpaper to clean the contacts.

>>>

>>>If you want to check the wiring and motors you can put the control box 

>>>back

>>>and connect. Don't put the relaicovers back.

>>>if you take the 4 relai's to you, the left one controls the headrest

>>>up/down. 1/2 and 1/10

>>>you can give the cupper contact a light push and the motor will react.

>>>downwards push 1/2 and 2/9

>>>

>>>Then from left to right:

>>>first row; 1/2 3/4 5/6 7/8

>>>second row; 9/10 1/10 4/6/8

>>>third row; 2/9 3/5/7

>>>

>>>1=headrest up

>>>2=headrest down

>>>3=backrest backwards

>>>4=backrest forwards

>>>5=chair front

>>>6=chair back

>>>7=chair seat front up

>>>8=chair seat front down

>>>9=chair seat back up

>>>10=chair seat back down

>>>

>>>TEST PROCEDURE

>>>

>>>All values measured to ground unless otherwise noted

>>>Conn./Plug/Pin Pin Information Test Value Comments

>>>N32/1

>>>1.1 Coded voltage input, activates functions selected by S91 s5/s8/s9

>>>Measure to pin 1.4 approx. 2200 Ohms Note 1

>>>1.2 Coded voltage input, activates functions selected by S91 s3/s4/s7

>>>Measure to pin 1.4 approx. 2200 Ohms Note 1

>>>1.3 Coded voltage input, activates functions selected by S91 s1/s2/s6

>>>Measure to pin 1.4 approx. 2200 Ohms Note 1

>>>1.4 Left front power seat switch group power supply output Ignition on 5

>>VDC

>>>2.1 Main ground to W18 Approx. 0 Ohms to ground

>>>2.2 Circuit 30, main power input Key in steering lock pos 1 12 VDC or no

>>key

>>>inserted, open door 12 VDC Feed from F1fE

>>>2.3 Circuit 15R/30 fused power inputswitched from CF relay module 12 VDC

>>>with key in steering lock pos. 1 Feed from F1f4

>>>2.4 Circuit 30, main power input same as pin 2.2 Feed from F1fF

>>>4.1 Left seat proximity signal output low side

>>>4.2 Left seat proximity signal input Connector 4 unplugged Measure across

>>>pin 4.1 & 4.2 12VDC

>>>4.3 Left backrest lock signal output Measure to pin 2.1 > 4 VDC

>>>4.4 Left seat proximity signal output high side Pin disconnectedMeasure 

>>>to

>>>pin 2.1 > 4 VDC

>>>4.5 Serial port data output, recalls mirror adjustment presettings from

>>>memory Remove connector 1 from ECMkey in steering lock pos. 1 press one 

>>>of

>>>memory pos. buttons 4-7 VDC Note 1

>>>5.15.2 Rear raise/lower adjust motor power supply output Ignition on 12 

>>>VDC

>>>with s2 pushed in either direction (polarity reverses) Resistance0.5-15

>>Ohms

>>>5.3 Rear raise/lower pos. actual value reference input Measure to pin 5.4

>>>record value X thento pin 5.5 record value YAdd values X+Y = approx.

>>>2200Ohms

>>> 5.45.5 Rear raise/lower pos. potentiometerpower supply output low

>>sidepower

>>>supply output high side Measure across pin 5.4 & 5.5approx. 2200Ohms

>>>6.16.2 Front raise/lower adjust motor power supply output Ignition on 12

>>VDC

>>>with s3 pushed in either direction (polarity reverses) Resistance0.5-15

>>Ohms

>>>6.3 Front raise/lower pos. actual value reference input Measure to pin 

>>>6.4

>>>record value X thento pin 6.5 record value YAdd values X+Y = approx.

>>>2200Ohms

>>> 6.46.5 Front raise/lower pos. potentiometerpower supply output low

>>>sidepower supply output high side Measure across pin 6.4 & 6.5approx.

>>>2200Ohms

>>>7.17.2 Seat fore/aft adjust motor power supply output Ignition on 12 VDC

>>>with s1 pushed in either direction (polarity reverses) Resistance0.5-15

>>Ohms

>>>7.3 Seat pos. fore/aft actual value reference input Measure to pin 7.4

>>>record value X thento pin 7.5 record value YAdd values X+Y = approx.

>>>2200Ohms

>>> 7.47.5 Seat pos. fore/aft potentiometerpower supply output low sidepower

>>>supply output high side Measure across pin 7.4 & 7.5approx. 2200Ohms

>>>8.18.2 Backrest fore/aft adjust motor power supply output Ignition on 12

>>VDC

>>>with s5 pushed in either direction (polarity reverses) Resistance0.5-15

>>Ohms

>>>8.3 Backrest pos. fore/aft actual value reference input Measure to pin 

>>>8.4

>>>record value X thento pin 8.5 record value YAdd values X+Y = approx.

>>>2200Ohms

>>> 8.48.5 Backrest pos. fore/aft potentiometerpower supply output low

>>>sidepower supply output high side Measure across pin 8.4 & 8.5approx.

>>>2200Ohms

>>>9.19.4 HR raise/lower adjust motor power supply output Ignition on 12 VDC

>>>with s4 pushed in either direction (polarity reverses) Resistance0.5-15

>>Ohms

>>>9.3 HR raise/lower pos. actual value reference input Measure to pin 9.2

>>>record value X thento pin 9.5 record value YAdd values X+Y = approx.

>>>2200Ohms

>>> 9.29.5 HR raise/lower pos. potentiometerpower supply output low 

>>> sidepower

>>>supply output high side Measure across pin 9.2 & 9.5approx. 2200Ohms

>>>N32/2

>>>

>>>1.1 Coded voltage input, activates functions selected by S92 s5/s8/s9

>>>Measure to pin 1.4 approx. 2200 Ohms Note 1

>>>1.2 Coded voltage input, activates functions selected by S92 s3/s4/s7

>>>Measure to pin 1.4 approx. 2200 Ohms Note 1

>>>1.3 Coded voltage input, activates functions selected by S92 s1/s2/s6

>>>Measure to pin 1.4 approx. 2200 Ohms Note 1

>>>1.4 Right front power seat switch group power supply output Ignition on 5

>>>VDC

>>>2.1 Main ground to W19 Approx. 0 Ohms to ground

>>>2.2 Circuit 30, main power input Key in steering lock pos 1 12 VDC or no

>>key

>>>inserted, open door 12 VDC Feed from F1fE

>>>2.3 Circuit 15R/30 fused power inputswitched from CF relay module 12 VDC

>>>with key in steering lock pos. 1 Feed from F1f4

>>>2.4 Circuit 30, main power input same as pin 2.2 Feed from F1fF

>>>4.1 Right seat proximity signal output low side

>>>4.2 Right seat proximity signal input Connector 4 unplugged Measure 

>>>across

>>>pin 4.1 & 4.2 12VDC

>>>4.3 Right backrest lock signal output Measure to pin 2.1 > 4 VDC

>>>4.4 Right seat proximity signal output high side Pin disconnectedMeasure 

>>>to

>>>pin 2.1 > 4 VDC

>>>4.5 Serial port data output, recalls mirror adjustment presettings from

>>>memory Remove connector 1 from ECMkey in steering

>>>

>>>lock pos. 1 press one of memory pos. buttons 4-7 VDC Note 1

>>>conn. 5-9 refer to appropriate information from N32/1as listed above

>>>Note 1 For further test refer to DM Body and Accessories Vol. 4 15.1

>>>

>>>

>>>

>>>Designation Description Coordinates Reference

>>>

>>>A1  Instrument cluster 38L PE54.30

>>>F1  Fuse and relay box 2L

>>>40G

>>>45L B.4

>>>F1f4 Fuse 4 43G

>>>F1f6 Fuse 6 41G

>>>F1f8 Fuse 8 40G

>>>F1f9 Fuse 9 42F

>>>F1f12 Fuse 12 42F

>>>F1fE Fuse E 1K

>>>45K

>>>F1fF Fuse F 2K

>>>46K

>>>K24  CF relay module 41L

>>>M27  Left front ESA motor group (with memory) 7L

>>>M27m1 Fore/aft motor 8L

>>>M27m2 Rear raise/lower motor 13L

>>>M27m3 Front raise/lower motor 11L

>>>M27m4 Head restraint raise/lower motor 4L

>>>M27m5 Backrest fore/aft motor 6L

>>>M28 Right front ESA motor group (with memory) 61L

>>>M28m1 Fore/aft motor 62L

>>>M28m2 Rear raise/lower motor 58L

>>>M28m3 Front raise/lower motor 60L

>>>M28m4 Head restraint raise/lower motor 67L

>>>M28m5 Backrest fore/aft motor 65L

>>>N32/1  Left front ESA control module (with memory) 4A

>>>12A

>>>20A

>>>28A

>>>36A

>>>N32/2 Right front ESA control module (with memory) 46A

>>>53A

>>>61A

>>>67A

>>>N32/5 Left seat proximity control module 24L

>>>N32/6 Right seat proximity control module 47L

>>>N32/7 Left backrest lock safety package 28L

>>>N32/8 Right backrest lock safety package 36L

>>>49L

>>>N32/9 MSC control module (with memory) 44L

>>>S17/3  Left front door switch 25L

>>>S17/4 Right front door switch 50L

>>>S52/1 Left backrest lock switch (left seat) 32L

>>>S52/1x1 Left backrest lock switch connector (left seat) 31J

>>>S52/2 Right backrest lock switch (left seat) 30L

>>>S52/2x1 Right backrest lock switch connector (left seat) 30J

>>>S52/3 Left backrest lock switch (right seat) 33L

>>>S52/3x1 Left backrest lock switch connector (right seat) 33J

>>>S52/4 Right backrest lock switch (right seat) 34L

>>>S52/4x1 Right backrest lock indicator switch connector (right seat) 34J

>>>S91 Left front ESA switch group (with memory) 17L

>>>S91e1 Illumination 20L

>>>S91s1 Fore/aft switch 15L

>>>S91s2 Rear raise/lower switch 15L

>>>S91s3 Front raise/lower switch 17L

>>>S91s4 Head restraint raise/lower switch 17L

>>>S91s5 Backrest fore/aft switch 19L

>>>S91s6 Memory button 1 switch 14L

>>>S91s7 Memory button 2 switch 16L

>>>S91s8 Memory button 3 switch 18L

>>>S91s9 Memory store button switch 18L

>>>S92 Right front ESA switch group (with memory) 54L

>>>S92e1 Illumination 52L

>>>S92s1 Fore/aft switch 56L

>>>S92s2 Rear raise/lower switch 57L

>>>S92s3 Front raise/lower switch 55L

>>>S92s4 Head restraint raise/lower switch 55L

>>>S92s5 Backrest fore/aft switch 53L

>>>S92s6 Memory button 1 switch 57L

>>>S92s7 Memory button 2 switch 56L

>>>S92s8 Memory button 3 switch 54L

>>>S92s9 Memory store button switch 53L

>>>W1  Main ground (behind instrument cluster) 41H

>>>W18 Ground (left front seat crossmember) 2E

>>>21H

>>>27E

>>>W19 Ground (right front seat crossmember) 46E

>>>49G

>>>50G

>>>X4  Terminal block (circuit 30, fuse and relay box) (2-pole) 39J B.1/4

>>>X6 Terminal block (circuit 58d) (2-pole) 23E

>>>51C B.1/4

>>>X11/4 Diagnostic test clutch 41F B.1/5

>>>B.1/15

>>>X18 Interior/taillamp harness connector (12-pole) 38F B.1/4

>>>X18/3 Interior/taillamp harness connector (8-pole) 42F B.1/4

>>>X54/6 ESC connector (2-pole) 43H B.1/4

>>>X55/3 Left front seat connector block 30G B.1/2

>>>X55/4 Right front seat connector block 33G B.1/2

>>>Z21/10  Door contact connector sleeve (switched ground) (solder joint in

>>>harness) 51E

>>>Z81/4 Circuit 58d connector sleeve (FFS) 22E

>>>52E

>>>*U27 15.00

>>>Electrical system, engine 0

>>>*U34 82.20-2000

>>>Interior lighting 0

>>>*U94 91.59

>>>Roll-over bar 0

>>>

>>>

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>>>

>>>-----Oorspronkelijk bericht-----

>>>Van: r129list-bounces at mbcoupes.com

>>>[mailto:r129list-bounces at mbcoupes.com]Namens mooncusser

>>>Verzonden: dinsdag 10 april 2007 18:57

>>>Aan: r129list at mbcoupes.com

>>>Onderwerp: [R129 SL] schematic request

>>>

>>>

>>>Hi all,

>>> I need wiring schematic of electric seat system for my 300sl.

>>>It seems possessed... switches don't work and it moved all most all

>>>the way forward on day while driving. And it has not moved since. The 

>>>motor

>>>is working... or it wouldn't have acted like "Christine" that day I was

>>>driving. Any suggestions????

>>>The MB Coupes Website!

>>>R129 SL Mailing List

>>>

>>>The MB Coupes Website!

>>>R129 SL Mailing List

>>

>>The MB Coupes Website!

>>R129 SL Mailing List

>>

>>The MB Coupes Website!

>>R129 SL Mailing List

>

> The MB Coupes Website!

> R129 SL Mailing List

>

>

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