coolant low - ominous sign or normal?
I purchased my cayenne in march. I never checked the coolant levels and have driven the pig for about 5k miles since. I had begun to notice low coolant warnings when driving enthusiatically over uneven and hilly terrain. I have been enjoying the car a fair amount since purchase :D Yesterday I checked the fluid levels and the reservoir was indeed below min.. so i filled it up to max range. So, since I dont know what the level was when i bought it i'm curious about coolant loss. Is it normal to consume a certain amount of coolant? Or could this be a sign of my coolant pipes leaking? Do the coolant pipes ever start by seeping or do they burst all at once? Trying to gauge what the norm is. Obviously I want to replace the plastic pipes with metal in the future but would rather wait a few months.
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Coolant pipes do sometimes leak for a while before they fail, so this could be a sign of impending disaster. My water pump also leaked a little bit before it failed, so you might check that.
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I could be wrong but most German cars I have owned have the fluid to the low mark when cold and Max when hot. Also they are usually pressurized so look for a leaky seem on the tank.
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Cooling systems don't "consume" coolant. It's supposed to be a sealed system with no loss of the operating fluids. Slow leaks are a PITA to track down. Could be the coolant pipes, could be a hose leaking very slightly around where it attaches to a fitting, could be the water pump, reservoir itself, or a bad cap on the reservoir.
Whatever it is - monitor your fluid a bit more often and see if a pattern emerges. I'd suggest checking it with the system cold before starting the engine. Do it same time, same place so the car is sitting at the same level. And if the pipes haven't been done - it's a "when" not an "if" on them exploding. |
thanks. I definitely WANT to do the coolant pipes.. but wasnt planning to do it for about 6 months. I also need to replace my valve body and who knows what else! But god i love this beast.
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Also, I guess I should confess... I added my oem mercedes coolant (that i use for the ml430) to top off the Porsche. Am I going to hell?!?!?
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Coolant pipes. trust me.
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alright folks. FINE. I ordered the ECS coolant pipe kit and I am dropping the p!g off at my indy next week. Dang it, I really wanted to replace the sticking valve body before doing this. But that issue is not as urgent (just annoying). At least I will be able to check the coolant pipes off the list. Too bad making money is harder than spending it.
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You got that right. My P!g goes to the shop tomorrow morning for four new tires, a four wheel alignment and an oil change. That will be cheap, I'm sure...
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what tires are you getting? I'm really leaning towards going with larger diameter tires when i need shoes.
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Originally Posted by endless_corners
(Post 9697993)
Also, I guess I should confess... I added my oem mercedes coolant (that i use for the ml430) to top off the Porsche. Am I going to hell?!?!?
You're better off adding plain water (or better yet - distilled water) to the system. The capacity of the system is enough that even a full reservoir of water added to it isn't going to change the freeze point enough to matter. |
Good to know... when my mechanic does the coolant pipe upgrade.. will all the coolant be replaced then.. or would I have to specify to do a "full flush" and need to buy extra coolant?
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You would need to specify if you want it flushed. You'll lose a gallon or less just doing the pipes.
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how much does the system hold? That porsche coolant sure isnt cheap.
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I think the complete system is between 3 and 4 gallons, but that's just going from memory.
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