C180 Tyre Size question

[rogkildare]

I have a 1996 C180 classic 1800cc 5 speed auto and I have to replace some worn tyres. The tyre sizes already on the car are 185/65 R15 but the C180 owners manual that came with the car says they should be 195/65 R15. I'm a bit confused as to what the correct size should be as both sizes are mentioned on some tyre purchase websites. Any confirmation gratefully received before I place my order.

 

[recycled]

it is 195/65 r 15 or 205/60 r 15