P0507 on Volvo: How to Diagnose & Fix
Idle Air Control System RPM Higher Than Expected
1 Volvo model · 1 documented issue · $400-$1,200 repair
P0507 on Volvo by model: symptoms, diagnosis and fix
The positive crankcase ventilation (PCV) system oil trap on the S60 T5 and T6 engines fails prematurely, causing excessive crankcase pressure, oil leaks, and increased oil consumption. The oil trap membrane hardens and cracks, allowing oil mist to enter the intake manifold and be burned in combustion. Failed PCV systems also cause boost leaks and rough idle. The oil trap is integrated into the valve cover on these engines, making replacement more expensive than older designs with external PCV valves. Volvo updated the oil trap design in mid-2022 production.
Common Symptoms
- Excessive oil consumption (1 qt per 2,000-3,000 miles)
- Rough idle and occasional misfires
- Oil leak from valve cover area
- Whistling noise from engine bay (boost leak through PCV)
- Check engine light with codes P0171 (lean), P0507 (idle speed high)
How to Fix
Replace the PCV oil trap assembly, which is integrated into the valve cover on these engines (Volvo part 31338685 for oil trap, or 31375560 for complete updated valve cover assembly). Clean intake manifold of oil deposits. Replace spark plugs if fouled. Use Volvo-approved 0W-20 oil and shorten oil change intervals to 5,000 miles. Updated oil trap design from mid-2022+ should be used as replacement part.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine Volvo 32140004 Drive-E four-cylinder oil trap
replace a diagnosed failed crankcase oil-trap assembly Fitment/availability: Applicable non-mild-hybrid Volvo Drive-E four-cylinder S60 gasoline and plug-in-hybrid branches; confirm VIN, engine code and installed part number, and do not …
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
P0507 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0507 mean on a Volvo?
P0507 stands for "Idle Air Control System RPM Higher Than Expected." This code means the engine is idling faster than the computer's target idle speed, typically by a set margin such as 200 RPM above commanded. The engine control module manages idle by metering a small amount of air around the throttle plate (via an idle air control valve or electronic throttle), and when it can't bring the RPM down to target it flags this code. The most common real cause is unmetered air sneaking into the intake — a vacuum leak — that the computer can't compensate for. It generally indicates extra air entering the engine or a problem with the idle/throttle control system. On Volvo it is documented across 1 model: S60.
What are the most common causes of P0507?
The most common causes of P0507 are: Vacuum or intake air leak (hoses, gaskets, intake boot), Dirty or sticking throttle body or throttle plate, Faulty or stuck idle air control valve, Leaking intake manifold or throttle body gasket, Stuck-open PCV valve or cracked PCV hose, Dirty mass airflow sensor giving false readings, Failing throttle position sensor, Leaking brake booster or its vacuum hose. The specific cause varies by vehicle.
How much does it cost to fix P0507 on a Volvo?
Published repair estimates on Volvo range from $400 to $1,200 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0507 on a different make?
View P0507 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.