1997 C280 - Radiator Cap

[John_Henrys_Hammer]

Hi

Apologies in advance for the dumbest newbie question for years.

I'm getting the radiator warning light periodically and I figure its time to make sure there's enough water/anti-freeze in the radiator.

However...

I can't find the radiator cap. That is to say there are some caps but I don't know which is correct.

Can someone advise?

Sorry.

J

 

[television]

It is on the small header tank, you will see the small pipe that goes to the rad

 

[bigasotonuk]

The header tank is on the O/S inner wing, just in front of the shock absorber mount, the tank will likely be a white opaque colour with a black top and a plastic screw cap.
You can clearly see it in the photo below of my AMG, (engine out at the time) it is on the extreme left hand edge of the pic without the cap on it.