Hi.
I have a Jeep with OM642 Mercedes Diesel engine.
I have recently noticed a light grey coloured residue in my plastic expansion tank. You can see it on the front of the tank. Anyone any ideas what this may be?
The coolant itself is very clear with just the blue tinge of the antifreeze. Coolant is 18 months old and is Mercedes MB325.0/G48.
Any thoughts?
Thanks.
I have a Jeep with OM642 Mercedes Diesel engine.
I have recently noticed a light grey coloured residue in my plastic expansion tank. You can see it on the front of the tank. Anyone any ideas what this may be?
The coolant itself is very clear with just the blue tinge of the antifreeze. Coolant is 18 months old and is Mercedes MB325.0/G48.
Any thoughts?
Thanks.