OM 602 290 GDT Radiator cap pressure rating

Gwagon7

Member
Joined
Oct 9, 2008
Messages
69
Age
55
Location
Cape Town
Hi all I am having some cooling issues with my G and we have narrowed it down to perhaps the wrong pressure threshold on the radiator cap. Currently there is a 0.9 bar or 13 psi cap and I cannot find any literature anywhere that gives the correct rating. I have anecdotal advice to say it should be 1.1 bar or 16psi. Any help much appreciated especially from those with a 290
 

Doug Nel

G-Wagen Club SA
Joined
Oct 11, 2008
Messages
551
Location
Cape Town
Hi Peter. Looks like the cap should be 140. Hopefully there is not something else wrong
1619504819073.png
 

Gwagon7

Member
Joined
Oct 9, 2008
Messages
69
Age
55
Location
Cape Town
Thanks Doug - may be the viscous - although I replaced it less than a year ago. These 290's are great when all is good but they are very fragile when it comes to heat!
 
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