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Low washer fluid
13-07-2019, 22:29 PM,
Post: #1
YTMercedes  Low washer fluid
Hi,
Every time when i start the car i get a low washer fluid warning. My car doesnt have a washer fluid sensor nor can i i figure out how to retrofit a cheater circuit.
My question is can i i somehow disable this by programing the eeprom chip in instrument cluster? Model is w169
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14-07-2019, 06:41 AM,
Post: #2
RE: Low washer fluid
My car is sharing the same sensor for washer fluid level and coolant level. Maybe is the same on yours.
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[+] 1 user says Thank You to ross2018 for this post
14-07-2019, 08:58 AM,
Post: #3
RE: Low washer fluid
(14-07-2019, 06:41 AM)ross2018 Wrote:  My car is sharing the same sensor for washer fluid level and coolant level. Maybe is the same on yours.

Does you car have Bi-xenon headlights with headlight washing system?
Thanks!
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14-07-2019, 09:35 AM, (This post was last modified: 14-07-2019, 09:36 AM by ross2018.)
Post: #4
RE: Low washer fluid
Yes, my car has those.
Those are feed from the same bottle as washer fluid.
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14-07-2019, 11:41 AM,
Post: #5
RE: Low washer fluid
I think that on washer fluid reservoar there should be a sesor. Atleast thats the info i have from EPC.
Can you maybe take a few pics for me? Like where u think the sensor is located and where the wiring harness from sensor is going to. I cant firugure this out. I just want to disable the stupid warning message.
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14-07-2019, 11:59 AM,
Post: #6
RE: Low washer fluid
Hope this help,


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[+] 1 user says Thank You to ross2018 for this post
14-07-2019, 12:06 PM, (This post was last modified: 14-07-2019, 12:07 PM by ALE009.)
Post: #7
RE: Low washer fluid
I definitely know that i dont have that sensor. Its a two wire combo. Just showing is the circuit open or closed/ has resistance or not.
I see u have experience with mercedes software. Can you maybe tell me how i can find in EPC/ WIS wiring diagram so i could find the correct place to retrofit a cheater circuit?
Thanks, im sorry if im a hustle to you. Im pretty new to this.
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14-07-2019, 12:19 PM,
Post: #8
RE: Low washer fluid
Input your vin nr in wis and under information types select circuit diagrams, then find the sensor or module.
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14-07-2019, 13:14 PM, (This post was last modified: 14-07-2019, 13:20 PM by ALE009.)
Post: #9
RE: Low washer fluid
I've found this in WIS.
https://docdro.id/O0eSDIJ
Since im not an eletrician im not best at reading schematics. But i think i have to wire it in in SAM control unit that is under the glove box? Right ?
It's not possible to automatically skip the warning by editing EEPROM on speedo ?
Shouldn't mercedes from factory leave a connector ready/ wiring harness ?
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15-07-2019, 13:50 PM,
Post: #10
RE: Low washer fluid
(14-07-2019, 12:19 PM)ross2018 Wrote:  Input your vin nr in wis and under information types select circuit diagrams, then find the sensor or module.


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