JHZR2
Staff member
My 1991 Mercedes 350sd hasn’t consumed or lost a drop of coolant since I’ve owned it.
But it doesn’t build pressure in the cooling system.
Should it, driving highway with ac on in 80-85 weather, for long distances? Mine doesn’t. Ive seen the needle creep up towards 100 (common and normal), but never over, due to a weak fan clutch. Still no pressure.
The system doesn’t have an overflow bottle, the radiator cap is on the reservoir bottle that is pressurized.
The HG is good. No concerns with anything. Shoukd I be concerned?
in reality, I’d rather keep it like this since these systems are old, and limiting pressure could be a benefit.
Thanks!
But it doesn’t build pressure in the cooling system.
Should it, driving highway with ac on in 80-85 weather, for long distances? Mine doesn’t. Ive seen the needle creep up towards 100 (common and normal), but never over, due to a weak fan clutch. Still no pressure.
The system doesn’t have an overflow bottle, the radiator cap is on the reservoir bottle that is pressurized.
The HG is good. No concerns with anything. Shoukd I be concerned?
in reality, I’d rather keep it like this since these systems are old, and limiting pressure could be a benefit.
Thanks!