So I have a temp guage that does nothing and the same for the oil temp guage. 
The two coolant sensors (from what i can see) have the same thread and electrical plug size. 
everyone keeps mentioning the colours but that's useless to me as everything is black.
One goes in vertical and one horizontal.
Please can someone clarify the part nunber for the vertical one and the part number for the horizontal one?

ive just fitted part number - MEK100061 and id like to know if its in the correct hole

It's a 1.8 vvc 1997 

thank you

 

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