Witness absence water not light

[basamir]

Hi,
my witness water absence in the bottle washes pane do not light.
How to replace the sensor by innate thermistor? Which value?
10x a lot

 

[television]

It is me again Do you mean that when the washer bottle is empty, the warning lamp does not come on to tell you.

I am going out for the rest of the evening.

 

[basamir]

It is me again Do you mean that when the washer bottle is empty, the warning lamp does not come on to tell you.

I am going out for the rest of the evening.

yeh exactly what i want to mean.

 

[television]

If the lamp in the instrument cluster is OK then the switch could be faulty, I think that the switch is 35 in the link.

You can test this with your meter

http://www.detali.ru/cat/oem_mb2.as...717.411412&CT=F&cat=506&SID=86&SGR=030&SGN=01

 

[basamir]

i have a 202 not 124
Yeh i m sure thaut the sensor is not ok but i dont know how can i chek it, it's a themistor but i dont know the correct value when botlle is empty and when it is fall.
the sensor is number 62

 

[television]

It is 62 in your link,,I know that you have a 202, my mistake.

What country do you live in Please

 

[basamir]

Spain --> Barcelona
here what I think and if you can help me.
I will be grateful. It s' can be a thermistor CTN or CTP thus is a variable resistor according to the temperature. CTN: negative variation. CTP: positive variation.
Thus it is necessary for the values of resistance to me when the bottle of the liquid washes pane is full and lamp off and also when the bottle is empty and obviously lamp on. As that if the resitance increases when there is more liquid thus it acts; a CTP and the case reverse is a CTN. wiring in series of the indicator lamp, the probe and power supply is certainly like that:
V+ ----> CTP or CTN ----> Witness ----> 0V.
is for that when the thermistor releases the circuit is opened and of the blow even in absence; water the lamp do not light. So, if i can knowknowing at which ohmic value the lamp light, I could get a simple of the same thermistor to me ohmic beach and to emerge in the bottle while respecting above mentioned wiring.
Thus i await your assistance.

 

[television]

OK it is too late for me tonight to look.

I will look on Sunday, no one has asked that question before

We have a good member here Andy , he may know more about this.

 

[basamir]

ok hold me on plz.
Andy your opinion and help are welcome

Good night friends

 

[basamir]

in fact I come to take measurements of the resistance of this sensor when the bottle is full and when it is empty.
Full bottle, and the entirely immersed sensor --> 175 Ohms
Empty bottle, and the sensor entirely in air --> 0 Ohms
what lets conclude that the sensor is simply a contactor and for my case it's ok.
Empty bottle, closed contact and the lamp of the warning must be lit thus my lamp is not my case is roasted.
When I switch on in position where all the lamp of the instrument panel are lit, that of the liquid washes pane do not light is this it would owe to be?
The terminal voltage of the sensor of level is equal to 5V. Thank you for to help me.

 

[television]

I think that you must take out the instrument cluster and put a new lamp in the washer place

Yes your washer switch is OK and good

 

[basamir]

I think that you must take out the instrument cluster and put a new lamp in the washer place

Yes your washer switch is OK and good

Ok how can i do to take out the instrument cluster, and where is located in the lamp washer plz?
If all is ok, the lamp will be lighting when i turn on the engine or when i swich on or both of the case?

 

[television]

The instrument cluster can be pushed out from the back or rear, the other way is to pull it out with kooks.

There are no screws holding it in, it is just a tight fit

I will put up a photograph of the hooks in the morning

This is the cluster

http://www.detali.ru/cat/oem_mb2.as...GM=717.460&CT=F&cat=44V&SID=54&SGR=585&SGN=19

 

[basamir]

do have the reference of lamps plz?
which voltage?
Also, can you tell me plz on the connector of the sensor in the botlle, which is pine + and pine -?

 

[television]

They are 12 volt 1.2 watt but special to MB and Citroen.

The + and- does not matter in the water level switch, so any way round

 

[Dec]

Your bulbs may not be same as in picture, get from MB dealer first.
http://202tech.mkosonen.com/howto/instrument.html
http://forums.mercedesclub.org.uk/attachment.php?attachmentid=5122&d=1213221634

No need to remove steering wheel.

Dec

 

[basamir]

in the picture, the bulbs dont separate from their plastic holders, so i can buy the bulbs with holders?
I think that what i need is:
12V, 1.2W

 

[television]

Yes you are right

 

[Dec]

Yes, BUT the bulbs could be different in your car, that is why I say to go to MB dealer for the bulbs before you start.

KEEP IGNITION SWITCHED OFF WHEN YOU REMOVE THE 2 POWER PLUGS FROM REAR OF CLUSTER

Dec

 

[basamir]

ok.
But which of the two methods is most reliable?
Disassembling of the cluster by the made hooks house or while passing by the lower part of the mask located in bottom of the wheel?
how much that's costs bulbs plz?