Which coolant for N52?
11-04-2013, 03:08 PM
#11
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My Ride: BMW
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Thanks guys! I ended up just going to the dealer and bought BMW coolant. I had to fill it up with about 24oz coolant/water mix to get it to full. Is that bad? I'm worried some might be going to the engine. I made a separate post here:
https://5series.net/forums/e60-discu...8/#post1523475
https://5series.net/forums/e60-discu...8/#post1523475
11-05-2013, 07:04 AM
#12
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My Ride: '06 530i, '07 C280 4matic, '98 ML320
Since coolant goes thru a closed-loop system, unless there is a leak somewhere, coolant level shouldn't go down in any significant amount. Some leaks are tiny and only leak under pressure and are difficult to isolate; however, you will see tell-tale-signs (coolant residue) around the leak area.
Without looking at the car, if I have to guess, I'd say there is a tiny leak somewhere (not in to the engine). There are several usual suspects in terms of leak-prone areas - coolant reservoir/tank, return hose, o-ring on the coolant temp sensor, radiator, etc. Take a flashlight and look for the residue.
OR go to an indy and have them pressure test the cooling system to find the leak.
Without looking at the car, if I have to guess, I'd say there is a tiny leak somewhere (not in to the engine). There are several usual suspects in terms of leak-prone areas - coolant reservoir/tank, return hose, o-ring on the coolant temp sensor, radiator, etc. Take a flashlight and look for the residue.
OR go to an indy and have them pressure test the cooling system to find the leak.
11-05-2013, 02:29 PM
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My Ride: 530i
Model Year: 2004
Engine: M54
Since coolant goes thru a closed-loop system, unless there is a leak somewhere, coolant level shouldn't go down in any significant amount. Some leaks are tiny and only leak under pressure and are difficult to isolate; however, you will see tell-tale-signs (coolant residue) around the leak area.
Without looking at the car, if I have to guess, I'd say there is a tiny leak somewhere (not in to the engine). There are several usual suspects in terms of leak-prone areas - coolant reservoir/tank, return hose, o-ring on the coolant temp sensor, radiator, etc. Take a flashlight and look for the residue.
OR go to an indy and have them pressure test the cooling system to find the leak.
Without looking at the car, if I have to guess, I'd say there is a tiny leak somewhere (not in to the engine). There are several usual suspects in terms of leak-prone areas - coolant reservoir/tank, return hose, o-ring on the coolant temp sensor, radiator, etc. Take a flashlight and look for the residue.
OR go to an indy and have them pressure test the cooling system to find the leak.
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