mercedes w124 bosch0132006327 or mercedes 1248001048 missing parts

[kazimates]

My friends has a mercedes benz w124, 300td, estate, statiton, 1991. Under the rear seat it located pneumatic vacum door lock electronic devices which one is coded Bosch 0132006327 (0 132 006 327) or mercedes 1248001048 (124 800 10 48) this part has a problem and he was try to repair with another technician but they remove some components on it. now the component is on my hand and i want to repair it. If you identify the missing / unidentified parts to me i will be pleased.

Part Names:
D400 (diode) unknown value
D401 (diode) unknown value
D402 (diode) unknown value
D453 (diode) unknown value
D450 (diode) unknown value
D451 (diode) unknown value
D452 (diode) unknown value
V550 (ic) CM C013 uem9041C (datasheet need)
V551 (ic) UAA1006 (datasheet need)
V500 (ic or transistor) C517 (is it transistor or ic??=)
C551 (capacitor) 47uf 10v 85c

PCB is coded 009/016B2

 

[wireman]

Re C517, might be a BC517 darlington,
http://www.datasheetcatalog.org/datasheet/siemens/BC517.pdf

Its not unknown to miss off the B and very common to miss of 2S ie 2SC517, but there ain't one of those!

The chips are probably marked for the customer and untraceable to the outside world.

I would suggest Ebay for a complete new/second hand pump, I recently got one second hand for a golf at £26.

 

[WG M-B]

He is not talking about the pump. It's the electric pneumatic switch under the rear seat which switches the vacuum for the seat backrest to lock/ unlock

 

[wireman]

In that case,
I would suggest Ebay for a complete new/second hand electric pneumatic switch.

 

[kazimates]

cable pinouts and replacement 1248001048 with 1248000648

we had w124 mercedes and on it originally they have a 1248001048 vacumm lock for the door and it gives a problem. We cant repair it because we haven't got schematic diagram of the circuit. But on the other hand we have 1248000648 and how can we replace old one with 1248000648? Do you have a cable pinouts for this modification.

Do you have 1248001048 and 1248000648 pin outs and cable schematics for the sockets?