AHC Leak 2011 LX 570 Drivers Side Rear

[cleanedge]

Hello All,

I have a 2011 LX 570 with approximately 205,000 miles. The vehicle has been well maintained overall.

I am currently dealing with an AHC fluid leak and am looking for help confirming the exact source and identifying the correct replacement part number.

Based on my inspection, the leak appears to be on the driver-side rear, just above the rear axle. I initially believed it was coming from a small line in that area and have included photos for reference. I am fairly confident the leak is coming from the line I am pointing to, although it was difficult to confirm because fluid began leaking rapidly once it started.

While the vehicle was parked in the garage with both rear wheels removed, I cycled the suspension (raising and lowering) and did not observe any leaks. However, once I backed the vehicle out, fluid leaked significantly onto the driveway. At the same time, I received an “AHC system” warning message on the dash.

Can anyone help confirm:

1. Whether the line I am pointing to is part of the AHC system
2. If this is a common failure point
3. The correct part number for the replacement line

Any guidance is appreciated

Chat GPT was all over the place with this one. I am pretty sure it was the line in Photo 2 and 4 but I have been wrong more times than I have been right.

Thanks

 

[04UZJ100]

Known leak point due to corrosion. Under the heat shield wrap you can see in your pic.

I pulled that wrap off and just greased the whole line.

 

[cleanedge]

Known leak point due to corrosion. Under the heat shield wrap you can see in your pic.

I pulled that wrap off and just greased the whole line.

Did you replace the whole line? Can you please explain more. Thanks

 

[04UZJ100]

Did you replace the whole line? Can you please explain more. Thanks

Search AHC leak. It’s documented on here. The line can be replaced between two threaded fittings.