victoroy

hi! , when i was driving my mercedes c320 2003 a mensage showing on the computer say that there was a problem with the alternator or the bat , i dont take to much care , because the batery was little old , i drive like 6 more kilometers , then i stop the car for like 2 hours , i turn it back on and drive another 4 Km back to home , then i hear a strange sound of boliing water comming from the engine , when i see it the belt was completly gone , there was like a spageti there , and the colant brown

did i just broke my engine ? did i cause to much damage ? how much that will be to fix it ?

NOTE: the coolant also get low

dmac5356

Your serpentine belt broke, so your alternator stopped turning - therefore the warning light. However that broken belt was also not turning the water pump. So your engine overheated. The brown color of your antifreeze might just be old coolant. There is no way to know what damage has been done from your description. You should check the oil to see if it has turned milky (antifreeze in your oil = bad). If not, then drain/refill your coolant and replace the belt. Then drive it a bit to see what happens next.

victoroy

I think that the coolant mix with the oil, the coolant was changed like 3 weeks ago and was new and green, now it is almost empty and brown

dmac5356

Usually coolant (under pressure) goes into the oil, not so much the other direction. Try checking compression to see if the head gasket blew.

Cruel-Merc

Id say its the engine oil cooler. It happened to me before , oil was mixed with coolant which turned its color to brown.

victoroy

i changed the coolant , i check the oil and it looks great

my local mercedes dealer charge me for a coolant , when i drain the system it was just water and rust coming from the rad

dmac5356

Who did the coolant change 3 weeks ago? MB coolant for these cars is not green. It sounds like they did a minimal job, or perhaps nothing at all.

Your coolant was probably low due to the overheating from the broken belt... it exited through the pressure cap.

victoroy

my local mercedes delaer change the coolant (and it was not coolant it was just water ) , when i got the car the coolant was green , and thats why i drain the system and pour green coolant again

Holmes5518

The Mercedes spec coolant for this car is now a dark blue/green. Not neon, but it is in fact green now.

victoroy

So im using the wrong coolant ? should i wory about it ?