C200 Electric engine cooling fan circuit

[C200 goblin]

Does anyone know what the big black relay type boxunder the fusebox in a W202 c200 is. It is around 15 cm long by around 10 cm high and screwed on by two torx screws.
It has the part numbers;
019 545 56 32 [SAM] onto it. ALso TEMIC 304-587

Also what are the relays on this car I need to knowwhat circuits they control. They are;
A - Black
B - Green,when I shake this it sounds like it has a lil stone shaking in it
C - Yellow
D - Yellow
F - Black

My cooling fan still goes off from the moment the ignition is turned on and stays on permanently until turned off. I did what I saw in another thread and cleaned the wiring etc,but no success and there wasnt any signs of water damage in both fan control modules (old and new one).

Everything is replaced, apart from the relays as I do not know what relays control them.

My chassis is WDB2020202F825895

BTW does anyone know what the unit behind the front nearside passenger footwelland mounted to the metalplate wall is. It has the numbers A 024 545 80 32 with SIEMENS 5WK33810F

 

[Ellsy Tanners]

The unit number a0245458032 is ur gearbox control unit

 

[television]

http://www.detali.ru/cat/oem_mb2.as...417717.418&CT=F&cat=44V&SID=54&SGR=045&SGN=03

The box feeds relay 119 in the above link.

This box suffers from water leaks and there are two modified lids and seals for the box

 

[Ellsy Tanners]

The box is called the sam unit, Signal aqusition module. dose wot it says on the tin!! takes signals and uses them to swich shut off open/close relays and things with electrical signals. Its a basic form or the units now on all the mercs.

 

[television]

The box is called the sam unit, Signal aqusition module. dose wot it says on the tin!! takes signals and uses them to swich shut off open/close relays and things with electrical signals. Its a basic form or the units now on all the mercs.

And it is the water that get in and shorts it all out, must fit the mod 2 lids

 

[C200 goblin]

I found the solution to the electronic cooling fan running permanently almost all the time from when the ignition is turned on and showing the low coolant light on the dashboard.
The solution is posted on this thread here
http://forums.mercedesclub.org.uk/showthread.php?t=12069