P164E00 Code
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Joined: Nov 2022
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AudiWorld Newcomer
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Loosing oil with this oil pressure regulation valve electrical error
Hi guys am have this code and my car 2017 Q7 loosing oil 250 miles 1 quart. Just came back from dealership after service and I assume they just cleared all the codes and didn't do nothing to fix actual problems
Super-Duper User
Joined: Sep 2020
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From: Southern New England
Super-Duper User
Joined: Sep 2020
Posts: 2,415
Likes: 554
From: Southern New England
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That code is discussed extensively in the A4 forum:
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https://www.audiworld.com/forums/a4-...valve-3059098/
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That code is discussed extensively in the A4 forum:
.
https://www.audiworld.com/forums/a4-...valve-3059098/
.
AudiWorld Member
Joined: Dec 2017
Posts: 157
Likes: 20
Looks like I'm headed down this road as well. Anyone who has done it on a 4.0 D4, does the AC system truly need discharged? I pushed my boroscope down into the area and the compressor certainly covers the valve, but if i can get away with just unbolting the compressor from the block and working behind/around it, I'd rather take that route.
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Camshaft Solenoid Control Valve Removal 4.0T
Looks like I'm headed down this road as well. Anyone who has done it on a 4.0 D4, does the AC system truly need discharged? I pushed my boroscope down into the area and the compressor certainly covers the valve, but if i can get away with just unbolting the compressor from the block and working behind/around it, I'd rather take that route.
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AudiWorld Member
Joined: Dec 2017
Posts: 157
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Haven't gotten to it yet, the next oil change is coming up very soon, I'll report back once I know.
AudiWorld Member
Joined: Dec 2017
Posts: 157
Likes: 20
Change of plans, I decided to get at least one more change interval in while the pump is stuck in high pressure mode to have more data via oil analysis to know whether or not the low pressure mode causes more wear and if so, how much, compared to the ECM switching as intended.