Quote:
Originally Posted by jetspeed
New to MB.
I have green coolant in my W124 windshield washer tank. I assume it's a heat exchanger system to keep the washer fluid from freezing by warming with recirculated coolant.
I tried to pull the windshield resivior tank to drain the coolant, but instead aggravated the situation by moving the rubber plug that is probably dry-rotted and is now LEAKING the coolant from the washer tank onto my garage floor.
So, the rubber plug is shot AND I assume that there is a leak in the coolant lines that run inside the washer tank since it was nearly full of coolant (???).
I guess I need and entirely new washer tank to replace the possible leaking coolant lines AND the rubber plug that is now leaking.
Thoughts? THANKS. I have a 94' 250 D grey market wagon FWIW.
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This problem is very easy to repair, the spiral tube inside the tank has a square piece in it - you will see it once you remove it, this is the thermostat for these spiral heater pipes. The end will have 2 screws, remove them to expose 2 or I think 4 O rings - replace these with new ones and reassemble it.
I had a similar problem in both my old cars - ones tank was crusted with silicated coolant deposits which looked like hard water scale,
- I used hot citric acid to clean it, and after replacing the O rings, the coolant level didnt drop as often.