Hi all,

I'm building a custom wiring harness for my engine management on an S52. I'm trying to source the stock connectors and pins from BMW so I don't have to splice any wires.

I'm having a really hard time matching the pins up to the connectors.

For example, the connector for the coolant temp sensor is: 12521703571
It references 61130007657 but that comes with a wire attached. I think I found a pin I can use 61131376191 but it is .5mm longer.

For the next example, the 3 pin connector that the CPS' use is 12521706096 and they reference 12520007253 as the pin. However, once again, that has a wire attached. I think I found 61138364583 that will work but I really have no clue if it will fit perfectly.

I am also trying to find the two pin connector that the VANOS solenoid uses, but it says it is no longer produced...

Anyone have advice for me?

Thanks!