New X7 M60i coolant leak

BogdanD82 · 05-30-2026, 03:23 PM

Hello! This is my first post here and I want to share a problem with you. I received my new X7 M60i on Wednesday. I was very excited until Thursday when I noticed what I initially thought was condensation from the AC but upon closer inspection I saw that it was green. I left the car parked until today when I returned home. On the passenger side near the wheel I saw that it was wet. The car being cold I opened the caps of the two coolant tanks. The main one is ok but the low temperature one is empty and dry, the car only has 100km or 60 miles. Now I don't know what to do, should I drive the car to the dealer (8km/5miles) or call the service to pick it up? Thanks in advance

e39when · 05-30-2026, 04:31 PM

Call the dealer ASAP.
The sales advisor or your first POC. Don't risk driving it.

It could be something tiny like a bad hose clip or a major fault in a coolant channel/galley of the block so dont risk it. It's brand new so your SA should jump on it. and do give them an earful

BogdanD82 · 05-31-2026, 01:39 AM

Quote:

Originally Posted by e39when

Call the dealer ASAP.
The sales advisor or your first POC. Don't risk driving it.

It could be something tiny like a bad hose clip or a major fault in a coolant channel/galley of the block so dont risk it. It's brand new so your SA should jump on it. and do give them an earful

From what I understand, the low temperature cooling system is only for intercoolers. I don't know if that's correct. I contacted the roadside assistance to come pick it up. But no one can see it until Tuesday because of the holidays here.

8202632 · 05-31-2026, 06:32 PM

Easy. In warranty. Take pics to dealer. They will fix it

BogdanD82 · 06-02-2026, 07:37 AM

Today the car arrived at the service. After checking they said it's from a pipe that leads to the gearbox or its heat exchanger. I found the low temperature circuit tank empty. Does this circuit also handle this heat exchanger? Online I found something vague about the main circuit doing this.

DieselMoparMan · 06-02-2026, 11:36 AM

From what I see in AIR the low-temp cooling circuit covers the two intercoolers as well the 48V power electronics (inverter, etc).

05-30-2026, 03:23 PM	#1
BogdanD82 Registered 0 Rep 3 Posts Drives: X7 M60i Join Date: May 2026 Location: Romania iTrader: (0)	New X7 M60i coolant leak Hello! This is my first post here and I want to share a problem with you. I received my new X7 M60i on Wednesday. I was very excited until Thursday when I noticed what I initially thought was condensation from the AC but upon closer inspection I saw that it was green. I left the car parked until today when I returned home. On the passenger side near the wheel I saw that it was wet. The car being cold I opened the caps of the two coolant tanks. The main one is ok but the low temperature one is empty and dry, the car only has 100km or 60 miles. Now I don't know what to do, should I drive the car to the dealer (8km/5miles) or call the service to pick it up? Thanks in advance Attached Images Last edited by BogdanD82; 05-30-2026 at 03:32 PM.. Reason: Attach photo
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05-30-2026, 04:31 PM	#2
e39when New Member 2 Rep 6 Posts Drives: x7 m60i Join Date: Nov 2025 Location: FL iTrader: (0)	Call the dealer ASAP. The sales advisor or your first POC. Don't risk driving it. It could be something tiny like a bad hose clip or a major fault in a coolant channel/galley of the block so dont risk it. It's brand new so your SA should jump on it. and do give them an earful
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05-31-2026, 06:32 PM	#4
8202632 Lieutenant 258 Rep 426 Posts Drives: Several Join Date: Jan 2019 Location: Tennessee iTrader: (2) Garage List 2023 Ford F250 SD L ... [0.00] 2023 X7 M60i [0.00] 2022 Chevrolet Taho ... [0.00] 2006 Ferrari F430 S ... [0.00] 2015 Porsche GT3 [0.00]	Easy. In warranty. Take pics to dealer. They will fix it
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06-02-2026, 07:37 AM	#5
BogdanD82 Registered 0 Rep 3 Posts Drives: X7 M60i Join Date: May 2026 Location: Romania iTrader: (0)	Today the car arrived at the service. After checking they said it's from a pipe that leads to the gearbox or its heat exchanger. I found the low temperature circuit tank empty. Does this circuit also handle this heat exchanger? Online I found something vague about the main circuit doing this.
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06-02-2026, 11:36 AM	#6
DieselMoparMan Enlisted Member 47 Rep 34 Posts Drives: 2021 X7 M50, 2016 535dx Join Date: Jun 2023 Location: SE Michigan iTrader: (0)	From what I see in AIR the low-temp cooling circuit covers the two intercoolers as well the 48V power electronics (inverter, etc).
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