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+---- Thread: Left mirror folding not working (/showthread.php?tid=11672)
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Left mirror folding not working - luckyluke - 19-10-2022
Hi.
W211 2008 electric folding left hand side mirror stopped working.Right is working ok.
SD says its the module.N69/1 (X30/7 CAN B)
Can You tell any other possible solutions to it ?
thanks.
Lucas
RE: Left mirror folding not working - W211 - 20-10-2022
Open door panel and check if wiring is good. Its very rare that the door control module go back. From what you write it looks like comminication error.
RE: Left mirror folding not working - Ecmbuster - 20-10-2022
Check the voltage to the mirror motor IN/OUT and UP/Down by using the manual switch.
RE: Left mirror folding not working - luckyluke - 20-10-2022
Will check those you said.Thanks for response.
Lucas
RE: Left mirror folding not working - luckyluke - 22-10-2022
Well...took whole side of the inside door panel out.Took also whole mirror out.Replaced mirror beam as last one did not heat properly (about half was heated).took whole mirror apart, put WD40 as no mechanic was there yet since manufacture day.
All working fine but electric folding not working yet.
Will change door module in a few days.
Lucas
RE: Left mirror folding not working - Ecmbuster - 23-10-2022
Yes but the folding part still has a motor IN and OUT.
Disconnect the harness to the mirror and with a schematic, operate with battery voltage IN and Out.
That will only prove the folding mirror operates.
RE: Left mirror folding not working - luckyluke - 23-10-2022
Hi.
You seems to understand diagrams.Any help please.
By my understanding is that folding mirrors signal to test is the location 20 K and 21 K on the diagram (believe it is-legend is in Polish language)
I just dont know what voltages must be obtained ?
I do not know how to read testing equipment diagram as it has numbers CON/PINS and how shall i read that ?
Please a few words about it so i could start testing my car.
Thanks...
RE: Left mirror folding not working - Ecmbuster - 24-10-2022
Polish conversions are difficult ..... but
M21/1h1 = Mirror heater
M21/1m1 = Vertical Adjustment
M21/1m2 = Horizontal Adjustment
M21/1m3 = Folding Mirror Motor
M21/1m3 motor connections are Pin 14 and Pin 15 on the mirror. Apply battery power with N69/1 disconnected.
Reverse the polarity to move mirror IN and OUT. If the mirror moves, the motor works.
Test wire continuity from the mirror motor Pins 14 and 15 to N69/1 Pins 3 and 4
If the continuity is correct then test E6/5 for direction of Left Mirror
X30/7 will be the CAN messages and an oscilloscope is required to test the messages for CAN Hi and CAN Lo.
If the motors operates with a battery source and all the wiring connections are intact, it is very possible the door controller is defective for the mirror.
There have been instances when the mirror wiring or wiring connections are defective.
It is also possible, the mirror is incorrect and missing the folding motors. It is also possible the wiring harness is not correct (missing pins to mirror connector). Match the diagram to the connector and pins.
RE: Left mirror folding not working - luckyluke - 24-10-2022
(24-10-2022, 05:36)Ecmbuster Wrote: Polish conversions are difficult ..... but
M21/1h1 = Mirror heater
M21/1m1 = Vertical Adjustment
M21/1m2 = Horizontal Adjustment
M21/1m3 = Folding Mirror Motor
M21/1m3 motor connections are Pin 14 and Pin 15 on the mirror. Apply battery power with N69/1 disconnected.
Reverse the polarity to move mirror IN and OUT. If the mirror moves, the motor works.
Test wire continuity from the mirror motor Pins 14 and 15 to N69/1 Pins 3 and 4
If the continuity is correct then test E6/5 for direction of Left Mirror
X30/7 will be the CAN messages and an oscilloscope is required to test the messages for CAN Hi and CAN Lo.
If the motors operates with a battery source and all the wiring connections are intact, it is very possible the door controller is defective for the mirror.
There have been instances when the mirror wiring or wiring connections are defective.
It is also possible, the mirror is incorrect and missing the folding motors. It is also possible the wiring harness is not correct (missing pins to mirror connector). Match the diagram to the connector and pins.
Well I am trully thanks for all Your work here.
I found out now why its the 14 and 15 pin - as its marking m3 and i should have known better how to read such simple markings to recognise pins from the diagram.ITS THERE 
PS.Can You explain how to read markings from d72292101da.pdf FILE please ... It only says - V + but it does not state whats the voltage for such measurments.
Once I fix this mirror I ll be able to understand how to start such repairs in the future. I have no books and no mechanics here who would be able to teach or at lease show few solutions to work with the car electrics. You would tell them CAN and they running away...
RE: Left mirror folding not working - Ecmbuster - 26-10-2022
Upper left corner of has an explanation
Conn. means connector number
Plug means the connection to module
Pin means the Pin number in the plug connection
The rest of the document explains the test, Pin connections with voltage or resistance, condition of test and the comment or expected values.