Hi All,
I have a leak at the temp sensor/hose connection on my cooling system.
I don't know if the sensor has the O ring
around it or the hose has the O ring
inside it.
To save me buying both parts when I may only need one does anyone know what the case is regarding the O ring situation?
Before anyone says 'take it apart and have a look', I'm hoping someone has the answer before I have to drain the system to take it apart, then re-fill, then buy the part(s), then drain AGAIN

, then re-fill AGAIN

!
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Present:
01 X5 4.4i
07 Yam R1
Past:
89 R32 Skyline various mods, running 442 BHP
00 Merc CLK55 AMG
01 E39 M5 Haywood and Scott silencers
02 E46 M3 Supersprint Cats, Eibach Lowered, Thorney Motorsport Remap, running 368 BHP