Coolant leaking from bellhousing

Tommy Owner/Technician North Carolina Posted   Latest  
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Drivetrain
2015 Porsche Panamera 3.6L (CWAA) 7-spd (Porsche PDK) — WP0AA2A72FL001554
Coolant Leaking From Bellhousing

This vehicle is leaking coolant from what appears to be inside the bell housing. I have used a borescope camera to look in the engine valley, & rear of the engine area. I don't see any signs of coolant anywhere above the bell housing. I haven't been able to get a real good look at the rear of the valley, or under the water manifold. Tis vehicle belongs to a real good customer, that knows Porsche is out of my comfort zone. I don't mind pulling the intake manifold, bit I don't want to get into pulling the trans, flywheel, engine etc... Advice from anyone with experience with this concern would be welcome. Thank You

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Steven Mechanic
Washington
Steven Default
 

Likely something in the engine valley is leaking. Any coolant leak into the valley will drain at the rear into the bellhousing. If this year vehilce is still using the coolant pipes that are press fit into the coolant manifold, then that is a common leak. The newer model years updated those pipes so they're less likely to leak. The thermostat is in the valley as well, but usually doesn't leak…

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Tommy Owner/Technician
North Carolina
Tommy Default
 

Steven, Thanks for your reply. We will be pulling the intake to check this one.

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Bill Owner/Technician
Michigan
Bill Default
 

I have not done one this new my self but have seen coolant pipe issues under the intake manifold on earlier years. I would get approval to remove the intake manifold i suspect you will see the problem then. I doubt you will need to get much deeper than that...

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Irek Mobile Technician
New York
Irek Default
 

Hi just like on cayenne the termostat leak. Remove intake and press test the system . Clean off valley first . We have one in shop now . Olso check for intake cleaning. If you have more questions my shop phone …

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Tommy Owner/Technician
North Carolina
Tommy Default
 

Irek, Thanks for your reply. We will be pulling the intake to check this one.

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Tommy Owner/Technician
North Carolina
Tommy Default
 

Bill, Thanks for your reply. We will be pulling the intake to check this one.

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Tommy Owner/Technician
North Carolina
Tommy Default
 

Bill, Thanks for your reply. We will be pulling the intake to check this one.

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Taylor Technician
California
Taylor Default
 

Coolant pipe orings very common. Goes from back of thermostat to heater hose there is also gasket on passenger side front of head like a steam pipe that also leaks​.​remove intake and pressure test. Intake is easy . Removing seat to disconnect battery not so much.... Hope this helps. Good luck

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Tommy Owner/Technician
North Carolina
Tommy Default
 

Taylor, Thanks for your reply. We will be pulling the intake to check this one.

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Troy Owner/Technician
Washington
Troy Default
 

Hopefully its not like the cayan the coolant leaks onto the torque converter seal and kills you then have a transmission leak when your done real awsome deal

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Tommy Owner/Technician
North Carolina
Tommy Default
 

Troy, Thanks for your reply. We will be pulling the intake to check this one.

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Irek Mobile Technician
New York
Irek Default
 

We have cayenne

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Tommy Owner/Technician
North Carolina
Tommy Resolution
 

Thank You all for your replies. We removed the intake manifold, and the valley had coolant in it. the seals for the thermostat housing to the block were leaking. We are going to replace all the seals for the water pump, T stat, pipes etc...

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Thanks