Turbocharger Bypass
Valve Solenoid
OEM-grade boost control solenoid for JAC Refine S5 — engineered for the HFC4GA3 2.0T turbocharged petrol engine. Precise ECU-controlled boost regulation, direct-fit replacement.
Product Overview
Part number 1016500GD052-F011 is the OEM turbocharger bypass valve solenoid for the JAC Refine S5 equipped with the HFC4GA3 2.0T turbocharged petrol engine. Also known as a boost control solenoid or recirculation valve solenoid, this component is mounted on the turbocharger assembly and is directly controlled by the Engine Control Unit (ECU) via a Pulse Width Modulated (PWM) 12V signal.
The solenoid acts as an electronically controlled switch that manages the bypass valve — allowing the ECU to precisely regulate boost pressure in real time, protect the turbocharger during throttle lift-off, and prevent compressor surge. A failed solenoid results in uncontrolled boost, turbo lag, rough running, or limp mode activation. This is a direct-fit replacement requiring no modification.
Function & Operation
The bypass valve solenoid manages boost pressure through three primary operating conditions:
Normal Boost Conditions
The ECU sends a PWM 12V signal to keep the solenoid energised and the bypass valve closed, allowing full boost pressure to build in the intake manifold for maximum engine performance.
Throttle Lift-Off / Gear Change
When the driver releases the throttle, the ECU de-energises the solenoid. The bypass valve opens, venting compressed air back to the compressor inlet — preventing compressor surge and protecting turbo bearing integrity.
Boost Regulation & Overboost Protection
Under high load, the ECU modulates the solenoid duty cycle to bleed off excess boost pressure via the bypass valve, keeping boost within safe limits for the engine and turbocharger at all RPM ranges.
Compatible Vehicles
| Make / Brand | Model | Years | Engine Code | Power |
| JAC Motors | Refine S5 (Eagle S5) 2.0T | 2013 – 2019 | HFC4GA3 2.0T | 174 HP / 128 kW |
| JAC Motors | Refine S7 2.0T | 2017 – 2020 | HFC4GA3 2.0T | 190 HP / 140 kW |
| JAC Motors | Refine A60 2.0T | 2016 – 2020 | HFC4GA3 2.0T | 190 HP / 140 kW |
| JAC Motors | Refine M4 2.0T | 2016 – present | HFC4GA3 2.0T | 147 HP / 108 kW |
| JAC Motors | Refine M5 2.0T | 2011 – present | HFC4GA3 2.0T | 174 HP / 128 kW |
| Sehol (JAC-VW) | X6 2.0T | 2020 – present | HFC4GA3 2.0T | 174 HP / 128 kW |
★ Primary fitment: JAC Refine S5 2.0T (2013–2019). Always confirm with OEM part number 1016500GD052-F011 or your vehicle's engine code before ordering.
HFC4GA3 Engine Specifications
This solenoid is matched to the following JAC turbocharged engine platform:
JAC HFC4GA3 — 2.0L Turbo Petrol (DOHC 16V)
Signs of a Failed Bypass Valve Solenoid
Replace this solenoid if your JAC Refine S5 exhibits any of the following symptoms:
⚠ Limp Mode / Reduced Power
ECU detects an out-of-range boost signal and restricts engine power to prevent turbo or engine damage.
⚠ Overboost or Underboost
Uncontrolled boost pressure — either too high (overboost) or too low (solenoid stuck open) — causing inconsistent acceleration.
⚠ Compressor Surge / Flutter
Audible flutter or flutter sound from the turbo during throttle lift-off — caused by compressed air having nowhere to vent.
⚠ Check Engine Light (CEL)
Fault codes P0243, P0245, P0246 or manufacturer-specific boost control solenoid codes stored in the ECU.
⚠ Turbo Lag / Slow Spool
Delayed boost build-up during acceleration caused by incorrect valve timing from a sluggish or intermittently failing solenoid.
⚠ Rough Idle / Hesitation
Unstable idle or hesitation under load caused by uncontrolled air recirculation affecting the intake manifold pressure signal.
Solenoid Specifications
| OEM Part Number | 1016500GD052-F011 |
| Also Known As | 1016500GD052 · Turbo Boost Control Solenoid · Bypass Valve Solenoid |
| Component Type | Turbocharger Bypass Valve Solenoid (Boost Control Solenoid) |
| Engine Application | JAC HFC4GA3 2.0T DOHC — Refine S5 / S7 / A60 / M4 / M5 |
| Turbo Application | BorgWarner K03 (53039700354 / 53039880354) |
| Operating Voltage | 12V DC |
| Control Signal | PWM (Pulse Width Modulated) — ECU controlled |
| Connector Type | 2-pin electrical connector (OEM plug-and-play) |
| Body Material | High-temperature engineering polymer / Brass core |
| Seal Material | Fluorosilicone (FKM) — fuel and oil resistant |
| Operating Temperature | -40°C to +130°C |
| Duty Cycle | 0 – 100% PWM |
| Mounting | Direct bolt-on — OEM bracket compatible |
| Condition | Brand New — not remanufactured |
| Quality Certification | ISO 9001 · TS16949 |
| Warranty | 12 months |
OEM & Cross Reference Numbers
The following numbers all refer to the same bypass valve solenoid:
Product Features
PWM ECU Compatibility
Engineered for Pulse Width Modulated 12V ECU control — identical response characteristics to the original JAC OEM solenoid for seamless ECU integration.
High-Temperature Rated
FKM fluorosilicone seals and high-temp polymer body rated to 130°C — withstands continuous underhood heat adjacent to the turbocharger housing.
OEM Plug-and-Play Connector
2-pin connector matches the original JAC wiring harness exactly — no splicing, adapters, or modifications required for installation.
Direct Bolt-On Fit
Designed as a true OEM replacement using the original mounting bracket and port dimensions — installs in minutes with basic hand tools.
100% Electrically Tested
Every solenoid is tested for correct resistance, actuation response, and seal integrity before dispatch — zero defects at installation.
ISO 9001 / TS16949 Certified
Manufactured under automotive-grade quality standards — consistent tolerances across every unit for reliable long-term ECU-controlled operation.
Why Replace the Bypass Valve Solenoid
- Restores precise ECU boost control — eliminates overboost, underboost, and limp mode caused by a faulty solenoid
- Prevents compressor surge on throttle lift-off, protecting turbo bearings and extending turbocharger service life
- Correct OEM part number ensures full ECU compatibility with the JAC Refine S5 HFC4GA3 2.0T engine management system
- Clears boost-related fault codes (P0243, P0245, P0246) when the solenoid is the confirmed root cause
- Plug-and-play 2-pin OEM connector — no wiring modifications required, workshop or DIY installation
- High-temperature FKM seals rated to 130°C ensure long-term reliability in the high-heat turbo environment
- Cost-effective solution — far less expensive than replacing the full turbocharger assembly for a solenoid failure
Fast Inquiry About This Part
JAC Refine S5 · Turbo Bypass Valve Solenoid · OEM 1016500GD052-F011
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