P052E: Positive Crankcase Ventilation Regulator Valve Performance
17 vehicles · 10 makes · $20-$5,000 repair
Most Reported On
P052E is an OBD-II diagnostic trouble code meaning “Positive Crankcase Ventilation Regulator Valve Performance.” The PCV valve is not performing correctly. Can cause oil leaks, rough idle, and increased emissions. This code is most commonly reported on 2009-2020 Volkswagen Tiguan, 2009-2016 Audi A4, and 2003-2014 Volvo XC90, plus 14 other vehicles, with repair costs ranging from $20 to $5,000.
Common Causes
Typical Repair Cost
Based on 18 documented vehicle-specific issues. Actual cost depends on root cause and vehicle.
Diagnostic Tools
To diagnose P052E, you'll need an OBD-II scanner. Here are our recommendations at every price point.
ANCEL AD310 Classic OBD-II Scanner
by ANCEL
A simple, affordable code reader that reads and clears check engine codes. Great for quick diagnostics on any OBD-II vehicle (1996+).
- Read & clear engine codes
- View freeze frame data
- I/M readiness status
- No batteries or app needed
BlueDriver Pro Bluetooth Scanner
by BlueDriver
Bluetooth OBD-II scanner with a free companion app. Provides enhanced diagnostics, smog readiness, and repair reports sourced from a database of verified fixes.
- Enhanced diagnostics (ABS, SRS, transmission)
- Repair Reports with verified fixes
- Smog check readiness
- Free app (iOS & Android)
LAUNCH CRP123X OBD-II Scanner
by LAUNCH
A professional-grade handheld scanner that reads all four major systems (engine, transmission, ABS, SRS) with live data streaming and graphing.
- Engine, transmission, ABS, SRS diagnostics
- Live data stream & graphing
- AutoVIN for vehicle identification
- Free lifetime updates via Wi-Fi
Autel MaxiCOM MK808S Diagnostic Tool
by Autel
Shop-level diagnostic tablet with bi-directional control, active tests, and full system coverage. Ideal for serious DIYers and small shops.
- All-system diagnostics (25+ modules)
- Bi-directional control & active tests
- Oil reset, EPB, BMS, TPMS, injector coding
- 7-inch touchscreen with Android OS
As an Amazon Associate, we earn from qualifying purchases. Prices are approximate and may vary.
Vehicles Affected (17)
PCV Breather System Failure
T5/T6 PCV Oil Trap System Failure and Oil Consumption
T5/T6 Engine Excessive Oil Consumption
PCV Breather Box and Oil Trap Failure
FAQ
What does P052E mean?
P052E stands for "Positive Crankcase Ventilation Regulator Valve Performance." The PCV valve is not performing correctly. Can cause oil leaks, rough idle, and increased emissions.
What are the most common causes of P052E?
The most common causes of P052E are: Failed PCV valve, Clogged PCV passages, Cracked PCV hose, Stuck PCV diaphragm, Excessive blow-by from worn engine. The specific cause varies by vehicle.
How much does it cost to fix P052E?
Repair costs for P052E range from $20 to $5,000, depending on the vehicle and root cause.
Which vehicles are affected by P052E?
Au7o has documented P052E across 17 vehicle models from 10 manufacturers: Audi, BMW, Cadillac, Honda, Jeep, Mercedes-Benz, Nissan, Subaru, Volkswagen, Volvo.
Sources (12)
- ForumSwedespeed - PCV System Repair
- TSBVolkswagen TSB 2014015 - 2.0L TSI Engine PCV Valve Diaphragm Replacement
- ForumReddit r/MechanicAdvice - 2009 VW Jetta PCV Valve Diaphragm Failure Discussion
- NHTSANHTSA Complaint #10419470
- newsMyJeepPatriot.com - Common Problems and Solutions
- NHTSANHTSA Vehicle Complaints for 2004 Honda S2000
- videoEricTheCarGuy - Honda S2000 Oil Consumption Diagnosis and Fix
- ForumSwedespeed Forum - 5-cylinder PCV system / oil trap replacement discussions for P2 V70/S60/XC70
- videoYouTube - PCV Valve Replacement on 2014 Audi SQ5 3.0T Supercharged by Audizine
- Forum1Addicts - DIY: N54 Valve Cover Gasket & Valve Cover Replacement
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.