P2015: How to Diagnose & Fix — Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance (Bank 1)
10 vehicles · 5 makes · $50-$2,500 repair
How to diagnose and fix P2015: 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.
Skoda Superb · 2008–2015
The 2.0 TDI Common Rail diesel (shared across Skoda Superb, Octavia and Yeti) very commonly logs fault code P2015 - intake manifold flap position sensor. The plastic swirl-flap lever/runner inside the inlet manifold and the V157 actuator motor wear and go out of range, so the ECU can no longer verify flap position. This triggers the EML, can put the car into reduced power/limp mode and hurts running. The official VW remedy historically was a complete intake manifold, which is expensive.
Common Symptoms
- Engine management light (EML)
- Reduced power / limp mode
- Hesitation or rough running
- Stored fault P2015
How to Fix
Diagnose with VCDS to confirm P2015 / 008213. The economical fix is an aftermarket aluminium repair bracket that limits the V157 actuator motor's travel back to the original range, restoring correct flap position; otherwise replace the intake manifold assembly. Clearing carbon and checking the actuator wiring is worthwhile at the same time.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- 03L129711AG intake-manifold flap P2015 repair bracket with spring
restore the actuator stop range when diagnosed overtravel causes P2015; not a repair for broken internal flaps or electrical faults Fitment/availability: VW-group 2.0 TDI only when the installed black plastic intake manifold is visibly c…
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Sources for this issue (2)
Volkswagen Phaeton · 2009–2016
On the European 3.0 V6 TDI, the intake manifold and its swirl flaps progressively clog with a hard carbon/oil sludge formed from EGR soot mixing with crankcase breather oil mist. The deposits restrict airflow and jam or wear the swirl-flap mechanism and its actuator/position sensor, throwing fault codes and hurting performance and economy. The swirl-flap actuator linkage can also fail mechanically. This is a well-known shared VAG 3.0 TDI weakness discussed extensively on German and UK forums.
Common Symptoms
- Reduced power / limp mode
- Poor fuel economy
- Rough running
- Swirl-flap or intake-runner position fault codes
- Check engine light
How to Fix
Remove and clean or replace the intake manifold and swirl flaps using a repair kit; replace the swirl-flap actuator/position sensor if worn. Service or delete EGR carbon paths per local regulations and consider an oil catch can to slow re-contamination. Keep up with EGR-system maintenance.
Sources for this issue (2)
Mercedes-Benz G-Class · 2005–2018
On diesel G-Class models with the OM642 V6, the plastic intake-manifold swirl flap linkage becomes brittle and snaps, and the swirl-flap actuator motor can fail (often after being contaminated by oil weeping from the turbo inlet seal). The broken plastic rods can also be drawn into the engine in worst cases. This is a well-known weak point that triggers intake-runner control faults, limp mode, and emissions test failures. Particularly relevant to higher-mileage EU diesel examples.
Common Symptoms
- Engine warning light
- Limp mode / reduced power
- Rough or poor idle
- Hesitation on acceleration
- Failed emissions test
How to Fix
Replace the swirl-flap actuator and fit a metal/upgraded swirl-flap repair kit (e.g. updated connecting rod kit) to replace the brittle plastic linkage. Address any upstream turbo oil leak contaminating the motor. A resistor bypass only clears the code and is not a proper repair if the linkage is broken.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- X8R0175 OM642 dual swirl-flap connecting-rod repair kitOEMX8R X8R0175
External linkage-only branch when both OM642 manifold flap shafts and actuator test good Fitment/availability: The inspected manufacturer listing identifies X8R0175 as two aluminum rods with six retaining clips and anti-friction adapters…
- Genuine Mercedes-Benz OM642 swirl-flap actuator A6421500594OEMMercedes-Benz A6421500594
Later G 350 actuator-motor branch after commanded tests prove motor/circuit failure and VIN/stamped number match Fitment/availability: The inspected official German genuine-parts page identifies A6421500594 as an in-stock actuator at €26…
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Sources for this issue (3)
Volkswagen Tiguan · 2009–2017
SEAT Leon · 2009–2020
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P2015 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 P2015 mean?
P2015 stands for "Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance (Bank 1)." This code reports a range or performance problem with the intake manifold runner position sensor or switch on engine bank 1. Many modern engines use intake manifold runner control flaps that open and close to optimize airflow for low-speed torque versus high-speed power, and a position sensor reports the flaps' actual position back to the engine computer. The code sets when that reported position doesn't match what the computer commands or expects, often because the flap linkage is broken or the sensor reads incorrectly. It commonly causes rough running, reduced power, or hesitation, and on some engines the plastic linkage breaking is a well-known weak point.
What are the most common causes of P2015?
The most common causes of P2015 are: Broken or disconnected intake manifold runner flap linkage, Faulty intake manifold runner position sensor, Stuck or seized runner control flaps from carbon buildup, Failed runner control actuator or motor, Wiring or connector fault at the position sensor, Vacuum leak or failed vacuum actuator (on vacuum-controlled systems), Cracked or warped intake manifold housing. The specific cause varies by vehicle.
How much does it cost to fix P2015?
Repair costs for P2015 range from $50 to $2,500, depending on the vehicle and root cause.
Which vehicles are affected by P2015?
Au7o has documented P2015 across 10 vehicle models from 5 manufacturers: Audi, Mercedes-Benz, SEAT, Skoda, Volkswagen.
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.