W203 wipers problem
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w203 c220 cdi
W203 wipers problem
Hello everyone, greetings from netherlands;
I have a w203 c2.2 cdi (model year 2000).
As soon as the ignition of the car was turned on, the windshield wipers worked, the wiper arm was in the zero position. this continued for 3-4 minutes and the wipers stopped working. If anyone knows anything about this, please help.
There is no rain sensor in the vehicle!
signal lever ( combination switch ) changed, problem persisted.
changed relay, still the problem persisted
wiper motor replaced, problem persists.
front sam module replaced, problem persists
In normal times, the wipers work very well. There is no problem with the water spray.
What could be the problem?
Note: star diagnostic done but windshield wipers fault not found in diagnosis. unfortunately i couldn't find the problem
This error still persists!
it's cold and the wipers now run for 10-15 minutes then stop and everything works as normal
I have a w203 c2.2 cdi (model year 2000).
As soon as the ignition of the car was turned on, the windshield wipers worked, the wiper arm was in the zero position. this continued for 3-4 minutes and the wipers stopped working. If anyone knows anything about this, please help.
There is no rain sensor in the vehicle!
signal lever ( combination switch ) changed, problem persisted.
changed relay, still the problem persisted
wiper motor replaced, problem persists.
front sam module replaced, problem persists
In normal times, the wipers work very well. There is no problem with the water spray.
What could be the problem?
Note: star diagnostic done but windshield wipers fault not found in diagnosis. unfortunately i couldn't find the problem
This error still persists!
it's cold and the wipers now run for 10-15 minutes then stop and everything works as normal
Last edited by Muzocat; Dec 5, 2021 at 06:55 PM.
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From: BC, Canada
2003 C230K Coupe Orion Blue
Assuming all the parts you replaced are of decent quality and working properly, I would next look at the wiper motor relay. I'm guessing it's sticking in the closed position.
If there is another relay of the same model in the SAM (notice the different colours) then you can also simply swap the relays and see if problem moves to the other circuit.
If there is another relay of the same model in the SAM (notice the different colours) then you can also simply swap the relays and see if problem moves to the other circuit.
Last edited by slammer111; Dec 6, 2021 at 01:55 PM.
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w203 c220 cdi
Assuming all the parts you replaced are of decent quality working properly, I would next look at the wiper motor relay. I'm guessing it's sticking in the closed position.
If there is another relay of the same model in the SAM (notice the different colours) then you can also simply swap the relays and see if problem moves to the other circuit.
If there is another relay of the same model in the SAM (notice the different colours) then you can also simply swap the relays and see if problem moves to the other circuit.
sam module
wiper relais
Thread Starter
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w203 c220 cdi
Assuming all the parts you replaced are of decent quality working properly, I would next look at the wiper motor relay. I'm guessing it's sticking in the closed position.
If there is another relay of the same model in the SAM (notice the different colours) then you can also simply swap the relays and see if problem moves to the other circuit.
If there is another relay of the same model in the SAM (notice the different colours) then you can also simply swap the relays and see if problem moves to the other circuit.
see sam Module photo
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From: BC, Canada
2003 C230K Coupe Orion Blue
The relay may only be sticking when cold. But if you've replaced the relays with new ones, then that would eliminate the issue as well.
Did you use an OEM (Valeo) combination switch?
Something is closing when it shouldn't be. I would next check the wiring (start from the motor and trace upstream) and see if something is frayed. Any history of rats living where you park your car?
Did you use an OEM (Valeo) combination switch?
Something is closing when it shouldn't be. I would next check the wiring (start from the motor and trace upstream) and see if something is frayed. Any history of rats living where you park your car?
Thread Starter
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w203 c220 cdi
The relay may only be sticking when cold. But if you've replaced the relays with new ones, then that would eliminate the issue as well.
Did you use an OEM (Valeo) combination switch?
Something is closing when it shouldn't be. I would next check the wiring (start from the motor and trace upstream) and see if something is frayed. Any history of rats living where you park your car?
Did you use an OEM (Valeo) combination switch?
Something is closing when it shouldn't be. I would next check the wiring (start from the motor and trace upstream) and see if something is frayed. Any history of rats living where you park your car?
Did you use an OEM (Valeo) combination switch?
Last edited by Muzocat; Dec 6, 2021 at 02:24 PM.
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Thread Starter
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w203 c220 cdi
star-diagnoze done but could not detect the fault mercedes service. and that they could find the fault by checking the cable-fuse and so on one by one for fault detection, and that this could happen in at least 4-5 hours. hourly rate is 95 euro plus tax
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not a merc
The right tools makes life easy. I am not saying there will be faults but looking at your actual values you will see the wiper inputs. And outputs from the sam. Its a 5 min check and you will know exactly where to fix the fault.
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2018 GLC300 4Matic; 2008 ML550 4Matic; 2004 C320
Turn signal/wiper staulk?
Had similar issues with the wipers doing crazy things. Replaced the turn signal/wiper stalk on the left of the steering wheel, which resolved my issue.
Had similar issues with the wipers doing crazy things. Replaced the turn signal/wiper stalk on the left of the steering wheel, which resolved my issue.
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not a merc
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w203 c220 cdi
Did this problem with your car turn the ignition on or did it always? My car is when I turn the key to position 1 in the morning and the car is cold and after 10-15 minutes everything is back to normal.
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2003 C230K Coupe Orion Blue
Here's a thread on how the turn signal combination switch works.
I still suspect you have a shorted wire in the assembly.
I still suspect you have a shorted wire in the assembly.
MBWorld Fanatic!
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From: Cape town
not a merc
Here's a thread on how the turn signal combination switch works.
I still suspect you have a shorted wire in the assembly.
I still suspect you have a shorted wire in the assembly.
You must see the actual value should correspond to your switch position. Report back with your findings
its not impossible that the steering column module is at fault too. The steering module provides the voltage supply for the switch. It also reads the voltage values from the voltage divider circuit inside the switch. So if your reference is wrong the outputs will be wrong too.
Last edited by Russell Ormerod; Dec 9, 2021 at 02:51 PM.
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w203 c220 cdi
This is why I say connect diagnosis tool. Get communication with SCM steering column module and look at actual values for combination switch.
You must see the actual value should correspond to your switch position. Report back with your findings
its not impossible that the steering column module is at fault too. The steering module provides the voltage supply for the switch. It also reads the voltage values from the voltage divider circuit inside the switch. So if your reference is wrong the outputs will be wrong too.
You must see the actual value should correspond to your switch position. Report back with your findings
its not impossible that the steering column module is at fault too. The steering module provides the voltage supply for the switch. It also reads the voltage values from the voltage divider circuit inside the switch. So if your reference is wrong the outputs will be wrong too.
It only does it when the weather is cold,
and when the weather gets colder,
the wipers start by themselves and then the stopping time increases.
