P2015 on 2010-2018 Audi TT 2.0L TFSI: Intake Manifold Runner Sensor Causes and Fixes

What's Unique About the 2010-2018 Audi TT

This P2015 code is exceptionally common on Audi and VW 2.0L TFSI EA888 engines from this era. The issue is rarely the sensor itself, but a simple mechanical failure: a small plastic stop for the actuator arm on the manifold wears down or breaks off from heat and vibration. This allows the arm to travel too far, sending an out-of-range signal that the sensor accurately reports. The enthusiast community developed a widely-used, inexpensive aftermarket metal bracket specifically to fix this design flaw 🎬 Watch: How this $70 bracket saves you hundreds in repairs., making it a well-known and simple repair that avoids replacing the entire intake manifold.

Generation note: The 2010-2018 range covers the later Audi TT Mk2 (8J, through 2014) with the EA888 Gen 2 engine and the early Mk3 (8S, from 2015) with the EA888 Gen 3 engine. This issue is extremely well-documented on the Mk2's 2.0T TSI engine. The Mk3 uses an updated version of the EA888, but the intake manifold runner system design is similar, and the fault can still occur, often being fixed with the same bracket solution.

Symptoms You May Notice

• Check Engine Light is on.
• Reduced engine power or sluggish acceleration.
• Rough or unstable idle.
• Decreased fuel economy.
• Engine may enter 'limp mode', limiting RPMs.
• Audible rattling or buzzing from the intake manifold area as the actuator arm vibrates.

Most Likely Causes

1. Worn or Broken Intake Manifold Actuator Arm Stop 🔴 High Probability → Shop Engine Intake Manifold The original manifold uses a small, integrated plastic stop that becomes brittle from constant engine heat cycles and vibration, eventually breaking off. This allows the vacuum-actuated arm to over-travel, causing the P2015 code.
   How to confirm: Visually inspect the actuator arm on the driver's side of the intake manifold. With the engine off, try to wiggle the black plastic arm; if there is significant play or it feels loose, the stop has failed. You can also have an assistant turn the ignition on (engine off) while you watch the arm. It will cycle; if it moves past its intended stop point, this is the cause.
   Typical fix: Install an aftermarket P2015 repair bracket. This metal bracket bolts onto the manifold and provides a new, solid stop for the actuator arm, restoring its correct range of motion.
   Est. part cost: $40-$70
2. Failed Intake Manifold Assembly 🟡 Medium Probability → Shop Engine Intake Manifold Besides the external stop failing, the internal flaps can get stuck from heavy carbon buildup (a common issue on TFSI direct-injection engines) or the internal linkage can break or pop out. This prevents the flaps from moving correctly, even if the external arm is working.
   How to confirm: If a repair bracket doesn't fix the code, or if the actuator arm doesn't move smoothly through its range, the manifold itself is likely faulty. A scan tool (like VCDS) can be used to command the flaps open/closed via an output test; if they don't respond or make grinding noises, the manifold is the problem.
   Typical fix: Replace the entire intake manifold assembly. The position sensor and actuator are typically included with the new manifold. It is highly recommended to perform a carbon cleaning (walnut blasting) of the intake ports at the same time.
   Est. part cost: $200-$500
3. Failed Vacuum Solenoid or Vacuum Leak ⚪ Low Probability The actuator that moves the runner flaps is vacuum-controlled. The N316 solenoid that directs the vacuum can fail, or the plastic vacuum lines can become brittle and crack from heat, causing a loss of vacuum.
   How to confirm: Check the small plastic vacuum lines running to the intake manifold actuator for any visible cracks or disconnections. With the engine running, use a vacuum gauge to test for vacuum at the actuator diaphragm. If there is no vacuum, trace it back to the control solenoid and test the solenoid's function with a scan tool or by applying power directly.
   Typical fix: Replace the faulty vacuum control solenoid (often called the N316 valve) or the cracked vacuum line.
   Est. part cost: $30-$100

Rare But Worth Checking

• Faulty Intake Manifold Runner Position Sensor (G336): → Shop Engine Intake Manifold While the code directly names the sensor, it is rarely the actual point of failure. It's usually just accurately reporting the mechanical fault of the actuator arm. The sensor is integrated into the manifold and not sold separately by VW/Audi, so a manifold replacement is required if it does fail.
• Wiring Harness Issue: Damage to the wires leading to the position sensor or actuator solenoid can cause this code, but it's uncommon. Check for chafed or broken wires near the intake manifold where they may rub against other components.

Diagnosis Steps

1. Read the fault codes with an OBD-II scanner to confirm P2015 is present. Note any other codes like P2004 or P2006.
2. Perform a primary visual and physical inspection: With the engine OFF, locate the intake manifold actuator on the driver's side of the engine. Firmly wiggle the black plastic actuator arm. If it has excessive play or feels loose, the plastic stop is broken. This confirms the most common failure.
3. If the stop is broken, the diagnosis is complete. Order a P2015 repair bracket from a reputable source like Diesel Geek, ECS Tuning, or URO Parts.
4. If the arm feels solid, inspect all small vacuum lines connected to the manifold actuator and the control solenoid (N316 valve) for cracks, brittleness, or leaks.
5. Use a VAG-specific scan tool (like VCDS or OBDeleven) to run Basic Settings for the 'Intake Manifold Runner'. The test will cycle the flaps and should complete without error. If it fails with an 'ERROR' status, it points to a binding or internal manifold issue.
6. Monitor the live data for the Intake Manifold Runner Position Sensor (G336). The value should sweep smoothly within a specific range as the engine is revved. If it jumps, sticks, or goes out of range, it confirms a mechanical movement problem.
7. If the actuator arm does not move at all during the test, check for vacuum at the actuator diaphragm with a vacuum gauge. If vacuum is present but the arm doesn't move, the actuator itself is faulty (part of the manifold). If no vacuum is present, suspect the control solenoid (N316) or a leak upstream.
8. If all external components and vacuum systems are confirmed to be working correctly, the problem is internal to the intake manifold (stuck flaps from carbon, or broken internal linkage), requiring manifold replacement.
🎬 Watch: Full walkthrough for replacing the entire intake manifold.

Parts You'll Likely Need

• Intake Manifold Lever Arm Fix Kit (P2015 Repair Bracket) — This is the most common, cost-effective, and permanent fix. It provides a durable metal stop for the actuator arm, preventing the over-travel that triggers the code.
  Trusted brands: Diesel Geek, ECS Tuning, URO Parts, AWTuning
  OEM price range: N/A
  Aftermarket price range: $40-$70
• Intake Manifold Assembly (OEM #06J133201BH) — Required if the internal flaps are seized from carbon buildup, the internal linkage is broken, or the integrated actuator has failed. The part number 06J133201BH is the latest revision, superseding older versions like 06J133201G, 06J133201AS, and 06J133201BD.
  Trusted brands: Audi/VW (Genuine OEM), Pierburg (OEM Supplier), Vaico, Hudson
  OEM price range: $350-$500
  Aftermarket price range: $200-$350

Related Codes That Often Appear With This One

• P2004 - Intake Manifold Runner Control Stuck Open
• P2006 - Intake Manifold Runner Control Stuck Closed

Technical Service Bulletins (TSBs) & Recalls

• TSB 2045138 (also cited as 24-17-04): Addresses P2015 on 2008-2016 CCTA and CBFA engines, noting an improved intake manifold design is available. This TSB confirms the widespread nature of the problem and the official fix being a manifold replacement.
• TSB Bulletin #A0124312072273_2: This manufacturer bulletin provides information for when the MIL is on due to the electric changeover valve N316, specifically referencing codes P2004, P2006, P2014, and P2015.

Platform-Specific Known Issues

• Volkswagen/Audi issued a warranty extension for the intake manifold on many 2.0T TSI engines for up to 10 years or 120,000 miles due to this common failure. While most 2010-2018 vehicles are now outside this window, it highlights how widespread the issue is. Owners should still check with a dealer using their VIN, as some coverage may have been extended.
• Aftermarket parts quality can be a concern. Some owners on forums report that after replacing the manifold with a cheap aftermarket unit, the P2015 code returned quickly, necessitating another replacement with an OEM part.

Mechanic-Grade Diagnostic Values

• VCDS Measuring Block 142 - Flap Position (%) — expected: At idle, 'Specified Position' and 'Actual Position' should both be near 0-5%. As RPMs rise above ~3000, both should move towards 95-99%.. Failure: The 'Actual' value is stuck (e.g., at 99%) while 'Specified' is 0%, or the 'Actual' value does not follow the 'Specified' value during a basic settings test.
• Intake Manifold Runner Position Sensor (G336) Voltage — expected: Approximately 5V between Pin 1 (5V reference) and Pin 3 (ground) at the sensor connector with key on, engine off.. Failure: No voltage or significantly less than 5V, indicating a wiring or ECM power supply issue.
• Intake Manifold Runner Control Solenoid (N316) Resistance — expected: Between 25 and 35 Ohms across terminals 1 and 2 of the solenoid itself.. Failure: Resistance is significantly outside this range, indicating a failed solenoid coil.
• Wiring Harness Continuity (Sensor/Solenoid to ECM) — expected: Maximum of 1.5 Ohms resistance on each wire between the component connector and the corresponding pin at the ECM connector.. Failure: Resistance higher than 1.5 Ohms indicates an open circuit, corrosion, or high resistance in the wire that needs to be repaired.

Hidden / Shadow Codes Worth Checking

• Adaptation ERROR in MVB 142/143: This is not a standard P-code but a status message shown in VCDS/VAG-COM. When running a Basic Setting for the intake runner, the system attempts to adapt the endpoints. If it fails, it displays 'ERROR', confirming a mechanical or electrical problem even if the flaps appear to move during the test. (see via VCDS or other advanced VAG-specific scan tool in Basic Settings or Measuring Value Blocks for the Engine module (01).)

Scan Tool Commands That Help

• VCDS (VAG-COM), OBDeleven: Engine (01) -> Basic Settings -> Group 142 (Intake Manifold Runner) — This is a key bidirectional test. It commands the ECM to cycle the intake runner flaps from fully closed to fully open. This allows you to visually confirm the actuator arm's movement and check if the adaptation completes successfully or results in an 'ERROR', which points to a fault.
• VCDS (VAG-COM), OBDeleven: Engine (01) -> Measuring Value Blocks (MVB) -> Group 142 — Used to monitor the live data of the intake runner flaps. It shows the 'Specified' position requested by the ECM versus the 'Actual' position reported by the G336 sensor. A mismatch between these two values in real-time confirms the fault.

Wiring & Ground Locations

• G336 Sensor Connector — On the intake manifold assembly, connected to the position sensor which is integrated into the manifold, typically on the driver's side of the engine bay.. This is the 3-pin connector for the sensor itself. Pin 1 is the 5V reference, Pin 3 is ground. Testing voltage here is the first step in diagnosing a wiring issue vs. a component issue.
• N316 Solenoid Connector — This vacuum control solenoid is located near the intake manifold, with vacuum lines running from it to the manifold's actuator.. This 2-pin connector provides power to the solenoid that controls vacuum flow to the actuator. A loss of signal or power here will prevent the flaps from moving, even if the manifold is mechanically sound.
• Engine Block Ground Strap — A primary ground strap connects the engine block to the chassis, often located on the left (driver's side) front of the engine bay, connecting to the frame rail.. A poor engine ground can cause a host of floating voltages and sensor reading errors. While not a direct cause, verifying this connection is clean and tight is a fundamental step in diagnosing any electrical fault.

Real Owner Repair Stories

• Reddit user Afraid_Moment8933 (2010 VW CC 2.0TSI (EA888 Engine)) — Persistent P2015 code after carbon cleaning, new throttle body, and new intake manifold. Also experienced intermittent hard brake pedal at low speeds.
  ❌ Tried (didn't work) Carbon cleaning, Replacing throttle body, Replacing entire intake manifold assembly
  ✅ What actually fixed it The user found a small filter screen inside the vacuum pump was clogged. After cleaning it didn't fully resolve the issue, they removed the screen entirely, which cleared the P2015 code and fixed the brake boost issue.
• Reddit user nondescrip82 (2019 Audi RS3 (different engine, but same vacuum control principle)) — P2006 code initially, then a persistent P2015 code after a solenoid was replaced. Limp mode limited to 4k RPM.
  ❌ Tried (didn't work) Replacing vacuum pump solenoid, Replacing entire lower intake manifold assembly, Replacing PCV system
  ✅ What actually fixed it A dealership technician ultimately found coolant had leaked into the vacuum lines that control the intake runner flaps. The root cause was a failing water pump. Replacing the water pump and affected vacuum lines resolved the code.
• YouTube channel CarBen Studios (VW MK6 GTI (EA888 Engine)) — Check Engine Light with code P2015. Also noted RPMs were slow to drop when letting off the gas or shifting.
  ❌ Tried (didn't work) Installing an ECS Tuning P2015 repair bracket. The code returned the next day.
  ✅ What actually fixed it The owner had a shop replace the entire intake manifold and perform a carbon cleaning at the same time. This permanently fixed the issue.
• Go-Parts research citing a Reddit user (VW 2.0T TSI) — P2015 code.
  ❌ Tried (didn't work) Initial installation of a repair bracket.
  ✅ What actually fixed it The owner discovered the aftermarket repair bracket had been installed incorrectly and was loose. The final fix was to carefully reinstall the bracket, ensuring it was secure and properly limiting the actuator arm's travel.
• NHTSA ODI #11542990 — An owner reported an emissions failure with code P2015 and noted that while a technical service bulletin and extended warranty exist for this repair, they sought assistance in resolving the persistent fault.

"I Checked Everything" — The Actual Cause

• In one documented case, a persistent P2015 code that remained after a manifold replacement was traced to a clogged filter screen inside the main engine vacuum pump. While vacuum lines held pressure/vacuum perfectly during tests, the source of the vacuum was restricted, preventing the actuator from functioning correctly under load. Removing this small internal screen solved the problem.
• Another case that would pass a standard vacuum line smoke test involved coolant contamination. A leaking water pump introduced coolant into the vacuum system, which prevented the intake runner flaps from being controlled properly, triggering the P2015 code. The fix required replacing the water pump and flushing the contaminated vacuum lines.

When the Usual Fixes Don't Work

• While the inexpensive repair bracket is the most common and successful fix, it is not a guaranteed solution. In some cases, the code returns shortly after installation. This usually indicates that the failure is not the external actuator stop, but an internal problem within the manifold itself, such as flaps binding due to heavy carbon buildup or a broken internal linkage. In these instances, a complete intake manifold replacement is the only correct repair.

OEM Part Supersession History

• 06J133201G, 06J133201AL, 06J133201AS, 06J133201BD → 06J133201BH — The original parts were prone to failure of the runner flap system and the actuator arm stop. The revised part 06J133201BH is an updated design intended to be more durable.
  Heads up: When replacing an older manifold with the newest revision, an updated breather hose (06H133583F) may also be required for correct fitment.

Model Year Variations Within This Range

• 2010-2014 (Mk2 TT): These models primarily use the EA888 Gen 1 or Gen 2 engine. The P2015 failure on the plastic OEM intake manifold is extremely common and well-documented for these engines.
• 2015-2018 (Mk3 TT): These models use the EA888 Gen 3 engine. While the intake manifold design was updated, the operating principle is similar, and the P2015 fault can still occur due to the same failure mode (actuator over-travel), often being fixed with the same repair bracket. However, some aftermarket performance manifolds designed for Gen 1/2 engines are not compatible with the Gen 3.

Diagnostic Flowchart

Used vs. New Parts: Buying Guide for This Vehicle

When a used part is the smart pick: For this specific repair, purchasing a used OEM intake manifold from a junkyard is NOT recommended. The primary failure is due to the degradation of a plastic component from heat and age, or internal carbon buildup. A used part is likely to have the same wear and could fail soon after installation.

What to inspect on the donor part:

• Not applicable, as used manifolds are not a recommended repair path for this code.

OEM-only on this vehicle (don't cheap out):

• Intake Manifold Assembly: If replacing the entire manifold, using a Genuine VW/Audi part or one from the OEM supplier (Pierburg) is strongly recommended. Cheap, unbranded aftermarket manifolds are widely reported to fail prematurely, causing the P2015 code to return.

Aftermarket brands forum-validated for this vehicle:

• Repair Bracket: Diesel Geek, ECS Tuning, URO Parts.
• OEM Supplier Manifold: Pierburg.
• Performance Manifold (Requires ECU Tune): Integrated Engineering (IE), CTS Turbo, SPA Performance.

Brands owners have reported issues with on this vehicle:

• Unbranded, low-cost intake manifold assemblies from marketplaces like Amazon or eBay are frequently cited in forums as being unreliable and failing quickly.

Real Owner Stories

Aggregated from forums and TSBs cited above. Mileages and costs reflect what owners reported in those sources.

Related OBD-II Codes

• P2004 — Intake Manifold Runner Control Stuck Open. This code is often found with P2015 as it indicates a physical problem (stuck flaps due to carbon, broken linkage) that prevents the runner from moving, which the position sensor (P2015) then reports as a performance error.
• P2006 — Intake Manifold Runner Control Stuck Closed. Like P2004, this code points to the same root mechanical failures within the intake manifold that cause P2015. It specifies the flaps are stuck in the closed position.
• P0171 — System Too Lean (Bank 1). Can appear alongside P2015 if the cause is a cracked or disconnected vacuum line leading to the manifold actuator. This leak introduces unmetered air, causing a lean condition and decreased fuel economy.
• P0300 — Random/Multiple Cylinder Misfire Detected. A common cause for P2015 is severe carbon buildup on the intake valves and within the manifold. This same carbon buildup can disrupt airflow and cause misfires, a rough idle, and reduced engine power.

Frequently Asked Questions