H15005-0203

Brand: Changan

Model: CS35

Product Name：Exhaust Phaser VVT Euro 5

Part Number: H15005-0203

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Product Details

Changan CS35 Exhaust Phaser VVT – Euro 5, Part No.: H15005-0203

Let’s keep it simple—this isn’t just a “small component” on your Changan CS35’s engine. It’s the key VVT (Variable Valve Timing) part for the exhaust system, tailored for CS35 models meeting Euro 5 emission standards: a precision-engineered component made of high-strength aluminum alloy, mounted on the end of the engine’s exhaust camshaft. It works with the engine control unit (ECU) and oil system to adjust the opening/closing timing of the exhaust valves. Think of it as the “exhaust valve’s timing regulator”—without it, the CS35’s exhaust efficiency drops, leading to weaker power, higher emissions (failing Euro 5 standards), and increased fuel consumption.

This exhaust phaser VVT is exclusive to Changan CS35 (Euro 5)—always check your vehicle’s VIN and emission standard to confirm fitment! It’s tailored to the CS35’s Euro 5 engine specs: its control logic matches the ECU’s programming (ensures precise exhaust timing), its size and mounting interface align with the CS35’s exhaust camshaft (no forced adjustments), and its oil circuit design adapts to the engine’s oil pressure (guarantees smooth operation). Grab a generic VVT part instead? You’ll run into trouble: mismatched ECU communication (can’t adjust timing), poor fit (causes oil leaks), or failure to meet Euro 5 emissions (risk of non-compliance fines).

Core Jobs: Optimize Exhaust, Cut Emissions & Boost Efficiency

As a vital part of the CS35’s Euro 5-compliant engine system, it does three key jobs to enhance performance and meet environmental standards:

Improve exhaust efficiency: By adjusting the exhaust valve timing (advancing or retarding it based on engine speed), it ensures exhaust gas is discharged quickly and completely. This reduces backpressure in the cylinders, letting the engine “breathe” better and boosting low-to-medium speed torque (ideal for city driving).

Meet Euro 5 emission standards: Optimized exhaust timing helps the catalytic converter work more effectively—fully converting harmful gases (CO, NOx, hydrocarbons) into harmless ones. This ensures the CS35 passes emission tests and avoids penalties for non-compliance.

Reduce fuel consumption: By syncing exhaust timing with intake timing, it minimizes waste of the air-fuel mixture (no unburned fuel left in cylinders). This lowers the CS35’s fuel consumption by 3–5% compared to engines with fixed exhaust timing.

This H15005-0203 exhaust phaser VVT only fits Changan CS35 (Euro 5)—wrong fit means performance loss or emission failure:

Fits These: All Changan CS35 variants meeting Euro 5 emission standards (matches the engine’s ECU program, exhaust camshaft model, and oil pressure specs—confirm with VIN and emission label).

Won’t Fit These:

CS35 with other emission standards: Like Euro 4 or China 6—different ECU logic and exhaust system designs (VVT can’t adjust to meet emission requirements).

Other Changan models: Like CS55, Eado—different engine structures and VVT system layouts (can’t install or work).

Non-Changan vehicles: Even if similar in shape, engine oil pressure and ECU protocols differ (no functional compatibility).

 Installation & Upkeep (Pros Only—Precision & Compliance Are Key!)

Installation: Must Be Done by Certified Technicians

Swapping this VVT component isn’t DIY—misalignment ruins timing and emissions:

Prep: Techs drain engine oil, remove the timing cover, and disconnect the oil control solenoid’s wiring from the ECU.

Remove old phaser: They loosen the exhaust camshaft bolt, take off the old phaser, and clean the camshaft mounting surface (remove oil residue or rust).

Install new phaser: They align H15005-0203 with the exhaust camshaft’s timing marks, bolt it to Changan’s exact torque specs (too tight breaks the camshaft; too loose causes timing deviation), then reconnect the solenoid and timing cover.

Calibrate & test: They use a diagnostic tool to calibrate the VVT with the ECU (critical for Euro 5 compliance), add Changan-specified engine oil, and test drive to check power, emissions, and no warning lights.

Maintenance: Easy Checks to Keep It Working & Compliant

Use Changan-specified engine oil: Low-quality oil clogs the solenoid or damages the phaser’s internal parts—always use oil that meets the CS35’s Euro 5 engine requirements.

Change oil regularly: Replace oil every 5,000–7,000km (old oil leaves deposits, reducing VVT responsiveness).

Scan ECU for errors: If the engine or emission warning light comes on, have techs scan the ECU—VVT-related codes (e.g., solenoid fault) need timely repair to avoid failing emission tests.

Avoid cold starts & harsh driving: Frequent cold starts or sudden acceleration increase VVT wear—warm up the engine before driving and maintain steady speeds.

Summary: Changan CS35 Exhaust Phaser VVT (Euro 5, H15005-0203)

This is an exclusive exhaust phaser VVT for Changan CS35 (Euro 5 emission standard; confirm VIN/emission label for fitment). Made of high-strength aluminum alloy, it’s mounted on the engine’s exhaust camshaft, working with ECU and oil system.

Its core functions: Adjust exhaust valve timing to boost exhaust efficiency (reduces backpressure, enhances low-medium torque); optimize catalytic converter performance to meet Euro 5 emissions; sync with intake timing to cut fuel consumption by 3–5%.

It only fits CS35 Euro 5— incompatible with CS35 (other emissions), other Changan models (e.g., CS55), or non-Changan vehicles. Installation needs certified techs (ECU calibration required). Maintenance involves Changan-specified oil, 5,000–7,000km oil changes, ECU error scans, and avoiding harsh driving.

H15005-0203