P0010: How to Diagnose & Fix — Intake Camshaft Position Actuator Circuit (Bank 1)
9 vehicles · 6 makes · $90-$2,500 repair
How to diagnose and fix P0010: most-reported vehicles
Ranked by owner reports. Each card gives the symptoms, how to confirm the cause, the fix, parts and sources for that vehicle.
Mercedes-Benz C-Class · 2012–2018
The camshaft adjuster solenoids (VANOS equivalent) stick or fail due to oil varnish buildup, causing rough idle, poor throttle response, and check engine lights. Particularly common with extended oil change intervals.
Common Symptoms
- Rough idle after warm-up
- Check engine light with cam timing codes
How to Fix
Replace the camshaft adjuster solenoid(s). Clean the oil passages feeding the solenoids. Use Mercedes-approved 229.51 spec oil and change every 7,500 miles to prevent recurrence.
Owner tips & cautions
- TipShorten oil change intervals to 7,500 miles instead of the Mercedes-recommended 10,000-13,000 miles. Dirty oil is the primary cause of solenoid failure.
Sources for this issue (2)
Honda Clarity · 2018–2021
The Honda Clarity PHEV can experience a dangerous loss of power when transitioning from electric to gasoline engine operation, particularly under high-load conditions such as highway hills, cold weather, or when the battery is nearly depleted. The vehicle may drop from highway speed (60+ mph) to as low as 20 mph while the engine revs loudly but fails to deliver power, behaving as if the transmission is in neutral. The 1.5L Atkinson-cycle engine struggles to maintain speed when the electric motor assistance diminishes, and the power management software does not always transition smoothly between operating modes.
Common Symptoms
- Vehicle drops from highway speed to 20-30 mph unexpectedly
- Engine revs loudly but vehicle does not accelerate
- Power System Problem warning on dashboard
- Gear icon with exclamation mark appears
- Issue worsens in cold weather or on steep grades
How to Fix
Have a Honda dealer scan for stored codes and check whether any software updates apply; owners report dealers often cannot replicate the problem. Keep the battery charged above 2 bars when highway driving in cold weather. In HV mode on long highway grades, manually press the HV Charge button to maintain battery reserve for power blending. If power loss occurs, safely pull over, turn off the vehicle for 60 seconds, then restart — this resets the power management system.
Call to confirm they can assess your vehicle and perform the stated work. Search results do not confirm qualification, eligibility or coverage.
Owner tips & cautions
- TipOn highway trips longer than your EV range, use HV mode from the start rather than draining the battery completely. Keeping 20-30% battery charge allows the electric motor to supplement the gas engine on hills, preventing the power loss scenario entirely.
- TipIf you experience frequent power loss on your commute, ask the dealer specifically for TSB 19-056 and TSB 20-008 software updates. Not all dealers proactively apply these unless you request them.
Sources for this issue (4)
Mercedes-Benz GLC · 2016–2023
On the M274/M264 2.0L turbo engines used in the GLC, the intake camshaft adjuster relies on an internal locking pin that wears over time. Without oil pressure at cold start, the adjuster fails to lock in its default position, producing a distinct metallic rattle for 2-4 seconds on a cold start. Oil leaking around the camshaft adjuster solenoid can also seep into the wiring harness and trigger timing faults. Left unrepaired it risks valve-timing errors and further engine wear.
Common Symptoms
- Loud metallic rattle for 2-4 seconds on cold start
- Check engine light
- Rough running until warm
How to Fix
Replace the camshaft adjuster(s) and/or the camshaft magnet/solenoid actuators; use of fresh, correct-spec oil and addressing any oil-pressure deficiency is part of the fix. Verify no oil contamination has reached the solenoid connectors.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine Mercedes-Benz M274/M264 intake and exhaust camshaft sprocket-adjuster kit 2600502100KTOEMMercedes-Benz 2600502100KT
Confirmed internal intake/exhaust camshaft adjuster failure branch Fitment/availability: The inspected direct U.S. Confirm VIN,
- OE-supplier camshaft-adjuster magnet and wiring-protection kit 2761560790KT2OEMFCP 2761560790KT2
Confirmed external adjuster-magnet leakage/electrical failure or oil-wicking prevention branch Fitment/availability: The inspected direct U.S.
As an Amazon Associate, we earn from qualifying purchases; other part links may also earn au7o a commission. Confirm fitment by VIN before buying.
Sources for this issue (2)
Mercedes-Benz GLE · 2016–2018
Mercedes-Benz SLK/SLC · 2004–2015
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P0010 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 P0010 mean?
P0010 stands for "Intake Camshaft Position Actuator Circuit (Bank 1)." This code points to an electrical problem in the intake camshaft position actuator (variable valve timing) circuit on Bank 1. The computer controls an oil-fed solenoid to advance or retard the intake camshaft for better performance and efficiency, and it has detected the solenoid circuit is open, shorted, or out of range. It is an electrical or solenoid fault, not a mechanical timing or oil-supply problem; those set the separate cam timing performance codes such as P0011. You may notice rough running, reduced power, or lower fuel economy.
What are the most common causes of P0010?
The most common causes of P0010 are: Faulty intake camshaft (VVT) oil control solenoid (open or shorted winding), Damaged, corroded, or loose wiring/connector at the solenoid, Open or short in the actuator circuit, Poor electrical ground, Failed PCM/ECM (less common). The specific cause varies by vehicle.
How much does it cost to fix P0010?
Repair costs for P0010 range from $90 to $2,500, depending on the vehicle and root cause.
Which vehicles are affected by P0010?
Au7o has documented P0010 across 9 vehicle models from 6 manufacturers: Honda, MINI, Mercedes-Benz, Subaru, Toyota, Volkswagen.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.