P1014: How to Diagnose & Fix — Manufacturer-Specific Powertrain Code (BMW/MINI: Valvetronic Eccentric-Shaft Sensor; Domestic: Exhaust Camshaft Position Actuator)
6 vehicles · 2 makes · $150-$4,000 repair
How to diagnose and fix P1014: 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.
BMW M3 · 2008–2013
The S65's VANOS (variable valve timing) solenoids control oil flow to adjust camshaft timing. Over time, internal wear and oil contamination cause the solenoids to malfunction, leading to poor engine performance, rough idle, and decreased fuel economy.
Common Symptoms
- Rough or unstable idle
- Sluggish acceleration especially at low RPM
- Loss of power throughout RPM range
- Check engine light illuminated
- Loud ticking or rattling sounds from engine
- Jerky throttle response
How to Fix
Replace VANOS solenoids (typically done as a set). Use high-quality BMW-approved oil to prevent contamination. Maintain regular oil change intervals (5,000-7,500 miles).
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine BMW S65 VANOS intake/exhaust solenoid kit 11367843118KTOEM11367843118 / 11367843117Cross-ref11367843118KT
Confirmed one-bank S65 intake/exhaust VANOS solenoid pair.
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 (1)
BMW M240i · 2017–2024
The B58 engine's VANOS solenoid o-rings degrade due to wear and high temperatures, causing oil leaks and variable valve timing faults. When the o-rings fail, oil pressure to the VANOS system is compromised, leading to rough idle, reduced power, and check engine lights. This is a continuation of a problem that has affected multiple generations of BMW inline-6 engines.
Common Symptoms
- Rough idle, especially when cold
- Reduced power and acceleration hesitation
- Check engine light with VANOS codes
- Oil leak around VANOS solenoid area on top of engine
- Engine stalling at low RPM
How to Fix
Replace the VANOS solenoid o-rings with updated silicone o-rings. Clean the solenoid screens of any debris. If solenoids are contaminated, replace the entire solenoid unit. Use BMW-approved 0W-30 oil and maintain proper oil change intervals to reduce o-ring degradation.
Sources for this issue (1)
Fiat 500 · 2012–2019
The MultiAir electro-hydraulic valve actuation system can fail, causing rough idle, misfires, and check engine light with codes P0014 or P1014. This is a common failure on the 1.4L MultiAir engine, often occurring between 40,000 and 80,000 miles.
Common Symptoms
- Rough idle
- Engine misfire
- Check engine light
- Reduced power
- Ticking noise from engine
How to Fix
Replace the MultiAir actuator unit on top of the cylinder head. Use updated Mopar part number for revised design.
Sources for this issue (1)
BMW M3 · 2001–2006
BMW X3 · 2007–2017
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P1014 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 P1014 mean?
P1014 stands for "Manufacturer-Specific Powertrain Code (BMW/MINI: Valvetronic Eccentric-Shaft Sensor; Domestic: Exhaust Camshaft Position Actuator)." P1014 is a manufacturer-specific powertrain code whose meaning varies by maker. On BMW and MINI it typically points to a problem with the Valvetronic eccentric-shaft position sensor or its reference position. On many domestic vehicles it relates to the exhaust camshaft position actuator (variable valve timing) being out of the expected range, and some makes such as Dodge use it for an emission solenoid circuit. Because the definition differs by brand, it should be confirmed against the specific vehicle's service data.
What are the most common causes of P1014?
The most common causes of P1014 are: Faulty eccentric-shaft / camshaft position sensor (BMW/MINI), Failing exhaust camshaft (VVT) actuator/solenoid (domestic), Low or dirty engine oil affecting VVT phaser, Wiring or connector corrosion at the sensor/actuator, Carbon buildup or mechanical binding in the variable valve system, Timing chain stretch / cam-to-crank correlation issue, ECM software or calibration fault. The specific cause varies by vehicle.
How much does it cost to fix P1014?
Repair costs for P1014 range from $150 to $4,000, depending on the vehicle and root cause.
Which vehicles are affected by P1014?
Au7o has documented P1014 across 6 vehicle models from 2 manufacturers: BMW, Fiat.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.