[R129 SL] FW: schematic request

[mooncusser]

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!

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