C-Class (W204) 2008 - 2014: C180K, C200K, C230, C280, C300, C350, C200CDI, C220CDI, C320CDI

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Old Oct 5, 2018 | 01:45 AM
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mercedes c class w204 c220
W204 c class

Hi everybody I’m after some help my Mercedes Benz w204 2.1 (right side) lights keep coming on when my engine car is shut off and I’ve had to pull the bulbs out before they burn out or even catch fire any advice please thanks ..
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Old Oct 5, 2018 | 07:36 AM
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Hi there, I had the same issue, but with the left side. Only when the switch in the "off" setting.
Try using the "automatic setting" and see if it happens again.
I ended up replacing the headlight switch.
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Old Oct 5, 2018 | 08:19 AM
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Originally Posted by gusm325
Hi there, I had the same issue, but with the left side. Only when the switch in the "off" setting.
Try using the "automatic setting" and see if it happens again.
I ended up replacing the headlight switch.


ok then Its going in for a diagnostics test today I’ll see what come on the laptop and keep you updated but I’ll bear that in mind what year is your car? Cheers
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Old Oct 6, 2018 | 11:13 AM
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Mine does that too when I leave the setting in the 0 position. Never happens when I leave it on Auto
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Old Oct 6, 2018 | 01:00 PM
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mercedes c class w204 c220
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Strange isit it ive bought a new cluster and connector block off eBay as my old one is burnt it maybe that causing the other faults I’m hoping.


Im also having issues with my acceleration it hesitates when drive not all the time I’ve replaced the map sensor and fuel temperature sensor any ideas ???
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Old Oct 6, 2018 | 09:08 PM
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C200 Estate Kompressor W204, 2018 GLA 220d
Are y'all sure you are not leaving your indicators on when you switch off the engine? On most european cars this a feature.
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Old Oct 7, 2018 | 05:33 AM
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mercedes c class w204 c220
W204

Originally Posted by Sentosa
Are y'all sure you are not leaving your indicators on when you switch off the engine? On most european cars this a feature.

no mate i wish that was the case I think I have a bad earth connection
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Old Oct 7, 2018 | 11:14 AM
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Leave it in auto if you are not happy with that buy a new headlight switch
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Old Oct 7, 2018 | 01:08 PM
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mercedes c class w204 c220
Originally Posted by NZ-Merc
Leave it in auto if you are not happy with that buy a new headlight switch
Isit and are they expensive mate this if for my fog like and side light now
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Old Oct 7, 2018 | 11:54 PM
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$175 from the dealer for a new headlight switch I'm sure you can find one in car-parts.com from a smashed w204 for much less
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Old Oct 13, 2018 | 01:07 AM
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Originally Posted by NZ-Merc
Leave it in auto if you are not happy with that buy a new headlight switch

hiya mate.

I’ve Ben recently having trouble with my electrics on my car rear lights front lights ect coming on when car all locked up randomly.

Ive has all sorts of code say malfunction and compas module wth is that I’ll upload pics now
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Old Oct 13, 2018 | 01:08 AM
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Anyone know about these codes ?
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Old Oct 14, 2018 | 12:51 AM
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Okay so what is happening is with headlights off very small amount of electricity is tracking across the grease between the off and live terminals inside of the headlight switch, and when there is enough voltage build up it is enough to trigger lights On momentarily but not enough to sustain the light so they turn off.

The fix is either replace the headlight switch or leave it in the Auto position.
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Old Oct 14, 2018 | 04:10 AM
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Originally Posted by NZ-Merc
Okay so what is happening is with headlights off very small amount of electricity is tracking across the grease between the off and live terminals inside of the headlight switch, and when there is enough voltage build up it is enough to trigger lights On momentarily but not enough to sustain the light so they turn off.

The fix is either replace the headlight switch or leave it in the Auto position.

ok thanks a lot I really do appreciate it I’ve had to take the bulbs out but I’ll leave it in the A position and put them back in it won’t drain anything bein in the A position will it ? I’ve had some codes come back to
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Old Oct 14, 2018 | 02:19 PM
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Yes no drain or flickering lights in the Auto position, consider it a Permeant long term repair no need to spend any money.

I dont know about codes I have no way of checking my car either way dont be concerned with them and next time you are in the shop have the codes all cleared.
Dave
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Old Oct 14, 2018 | 03:19 PM
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Originally Posted by NZ-Merc
Yes no drain or flickering lights in the Auto position, consider it a Permeant long term repair no need to spend any money.

I dont know about codes I have no way of checking my car either way dont be concerned with them and next time you are in the shop have the codes all cleared.
Dave
That’s mad how Auto does that I sure will be doing that thanks a lot really appreciate it
it’s both my sam modules front ant rear that have codes.
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Old Nov 5, 2018 | 01:16 PM
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MY W204 diesel car is jerking when under acceleration I have had my injector seal changed due to chuffing I’m hoping it air in the system.
​​​​​​​ I’ve had my 02 checked
does anybody know what it could be please it’s pissing me off
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Old Nov 20, 2018 | 01:28 PM
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OIL LEAK

HAS ANYBODY DISCOVERED OIL LEAK AROUND INJECTOR TROFF ON W204 C CLASS IM HOPING IT AINT COMING OUT MY INJECTOR BUT JUST RECENTLY HAS THE SEAL DONE ?
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Old Dec 9, 2019 | 12:51 PM
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mercedes c class w204 c220
Help

Originally Posted by NZ-Merc
Okay so what is happening is with headlights off very small amount of electricity is tracking across the grease between the off and live terminals inside of the headlight switch, and when there is enough voltage build up it is enough to trigger lights On momentarily but not enough to sustain the light so they turn off.

The fix is either replace the headlight switch or leave it in the Auto position.
CAN SOMEONE PLEASE HELP ME I WAS DRIVING AND THESE LIGHTS RANDOMLY COME ON DOES ANYBODY KNOW WHAT COULD BE THE CAUSE ?

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Old Dec 9, 2019 | 12:54 PM
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HELP

CAN SOMEONE PLEASE HELP ME I WAS DRIVING AND THESE LIGHTS RANDOMLY COME ON DOES ANYBODY KNOW WHAT COULD BE THE CAUSE ?



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Old Aug 1, 2020 | 04:32 PM
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Help please

Can anyone help me i have w204 C class and my Radiator Fan comes on and stays on until I turn the key off had anyone experienced this before if so what was it ?
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Old May 25, 2023 | 02:05 PM
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Originally Posted by NZ-Merc
Okay so what is happening is with headlights off very small amount of electricity is tracking across the grease between the off and live terminals inside of the headlight switch, and when there is enough voltage build up it is enough to trigger lights On momentarily but not enough to sustain the light so they turn off.

The fix is either replace the headlight switch or leave it in the Auto position.
Originally Posted by HULKSTRONG
CAN SOMEONE PLEASE HELP ME I WAS DRIVING AND THESE LIGHTS RANDOMLY COME ON DOES ANYBODY KNOW WHAT COULD BE THE CAUSE ?



Hi, did you manage to find the problem with this. I have the same issue along with the Fan running constantly when the engine is on


Thanks
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