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2017 C300 W205 Diagnostic menu

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Old Jan 23, 2023 | 10:45 AM
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massimor
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From: Western Massachussets
2017 C300 W205
2017 C300 W205 Diagnostic menu
Hi

does anybody know what all the values showing in the Diagnostic screen mean? My start / stop function is not working anymore. No error or codes are displayed on my instrument panel. I have read that by replacing the battery it will fix the problem and there is also a unit under the glove compartment that is controlling that function. Battery has 12.5 V and when the car is running it shows 14,4V

Thank you









Thank you in advance for any response.

Massimo
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Old Jan 23, 2023 | 01:12 PM
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W205C43PFL
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Originally Posted by massimor
Hi

does anybody know what all the values showing in the Diagnostic screen mean? My start / stop function is not working anymore. No error or codes are displayed on my instrument panel. I have read that by replacing the battery it will fix the problem and there is also a unit under the glove compartment that is controlling that function. Battery has 12.5 V and when the car is running it shows 14,4V

Thank you









Thank you in advance for any response.

Massimo
Check your auxiliary battery as well.
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Old Jan 23, 2023 | 03:40 PM
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2017 C300 W205
I have also found this video.

Massimo
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Old Jan 23, 2023 | 08:58 PM
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W205C43PFL
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Originally Posted by massimor
I have also found this video.
https://www.youtube.com/watch?v=fk5Vij3JODg&t=65s

Massimo
Good find, I just found this as well hopefully it helps in a way: https://mbworld.org/forums/s-class-w...ml#post8664908
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Old Jan 26, 2023 | 09:11 PM
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massimor
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From: Western Massachussets
2017 C300 W205
Hi all
I ended up changing my main battery and everything went back to normal. Start / Stop function is working again.

Massimo
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Old Jan 26, 2023 | 09:28 PM
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W205C43PFL
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Originally Posted by massimor
Hi all
I ended up changing my main battery and everything went back to normal. Start / Stop function is working again.

Massimo
I see, did you get an OEM battery or something else?
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Old Jan 26, 2023 | 11:06 PM
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From: Western Massachussets
2017 C300 W205
Originally Posted by W205C43PFL
I see, did you get an OEM battery or something else?
No, I did not buy OEM battery. I bought a compatible battery at a local auto store.
Massimo
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Old Jan 27, 2023 | 07:52 AM
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W205C43PFL
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Originally Posted by massimor
No, I did not buy OEM battery. I bought a compatible battery at a local auto store.
Massimo
I see, anyways glad everything is solved for you. Enjoy your car : )
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