VW 03B103373E Tdi Diesel Cylinder Head Valve 2.0L 023D

( Brand: Vw ), ( Manufacturer Part Number: 03B103373E ), ( Type: Cylinder Head ), ( Material: Aluminum ), ( Vintage Part: No )

Review VW Audi 2.0l Tdi Diesel Cylinder Head Valve fits H7 2003–2016

The **VW 03B103373E 2003 2013 Audi 2.0L TDI Diesel 16-Valve Cylinder Head (H7 023D)** is a meticulously engineered component designed to deliver peak performance and reliability for the iconic **Audi 1.8T/2.0T TDI** engines found in models such as the **A4, A6, Q5, and TT**, as well as the **Volkswagen Passat, Jetta, and Golf TDI** within the same era. This cylinder head is part of the **EA113 engine family**, a robust and fuel-efficient diesel architecture renowned for its durability and efficiency, particularly in applications requiring a balance of power and torque. Crafted from high-grade cast iron or aluminum (depending on the specific variant), this head features a **16-valve design**, incorporating **four valves per cylinder** two intake and two exhaust to optimize airflow and combustion efficiency. The **H7 023D designation** indicates a specific revision level, often incorporating refinements in valve seat inserts, combustion chamber geometry, and exhaust port shaping to enhance emissions compliance and thermal management, particularly for models adhering to **Euro 4 or Euro 5 emissions standards**.

The cylinder head is equipped with **hydraulic valve lifters**, ensuring smooth operation and minimizing wear, while the **camshaft drive** is typically managed via a **timing chain** (in contrast to some later models that may use a belt), which is known for its longevity and resistance to stretch or failure. The **fuel injection system compatibility** is critical here, as this head is designed to work seamlessly with **Bosch or Siemens common-rail direct injection pumps** (such as the **CP3 or CP4**), delivering precise fuel metering for optimal combustion. The **exhaust manifold** is integrated into the head, often featuring **turbocharger compatibility** for models with forced induction, allowing for efficient scavenging of exhaust gases to boost performance. Additionally, the head includes **spark plug wells** (for ignition systems in some variants) and **coil-on-plug or distributor ignition components**, depending on the specific application, ensuring reliable starting and combustion.

For maintenance and longevity, this cylinder head is engineered with **threaded spark plug holes** and **high-temperature fasteners** to prevent loosening under thermal stress, while the **valve springs and retainers** are designed to withstand the high pressures generated by diesel combustion. The **oil control rings and piston cooling jets** (where applicable) work in tandem with the cylinder head to manage heat and reduce wear, contributing to the engine s reputation for endurance. Whether sourced as an **OEM replacement** or a **high-quality aftermarket alternative**, this part is essential for restoring or maintaining the performance, efficiency, and emissions compliance of your **Audi 2.0L TDI or Volkswagen 2.0L TDI engine**, ensuring it operates with the same precision and reliability as when it left the factory. Proper installation, including **sealing the head gasket** with a high-quality gasket and ensuring correct torque specifications, is vital to prevent leaks and maintain optimal compression. This cylinder head is a testament to **German engineering excellence**, offering a perfect blend of power, efficiency, and durability for diesel enthusiasts and professionals alike.

### **Pros and Cons of Buying a Used 2003 2013 Audi 2.0L TDI (03B103373E) 16-Valve Cylinder Head (H7, 023D)**

#### **Pros**

1. **Proven Reliability (When Maintained Properly)** The 2.0L TDI (03B) engine, when well-maintained, is known for durability, especially with proper fuel system care (diesel particulate filter, EGR, and turbocharger attention). Many examples reach 200,000 miles with regular service.

2. **Fuel Efficiency** Diesel engines in this class typically offer **30 40 MPG** in city/highway driving, making them cost-effective for long-distance or commercial use compared to gasoline alternatives.

3. **Strong Aftermarket Support** The 03B engine has a large aftermarket presence, with readily available parts (injectors, turbochargers, fuel pumps, sensors) and tuning options (e.g., VW/Audi diesel tuners like **JB4, Haltech, or DiabloSport**).

4. **Potential for Modifications** With proper tuning and supporting mods (e.g., upgraded injectors, turbo, intercooler), power gains of **100 200 HP** are achievable without major engine work, increasing resale value or enjoyment.

5. **Lower Operating Costs (Compared to Gas Engines)** Diesel fuel is often cheaper per gallon, and the engine s longevity can reduce long-term ownership expenses if maintained correctly.

6. **Common in Fleet/Commercial Use** Many taxis, rental cars, and delivery vans run these engines, meaning parts and labor may be more accessible in urban areas.

7. **Resale Value (If Well-Documented)** A TDI with a clean service history can hold value better than a poorly maintained gasoline engine, especially in markets where diesel is still preferred.

---

#### **Cons**

- **Fuel system cleaning** (every 50,000 75,000 miles) to prevent injector fouling.

- **EGR cooler replacement** (common failure point, often around 100,000 150,000 miles).

- **DPF (Diesel Particulate Filter) issues** (if equipped with a modern DPF, regeneration failures can be costly).

- **Turbocharger wear** (older turbos may need replacement every 100,000 150,000 miles).

- **High-pressure fuel pump (HPFP) failures** (can be expensive to replace, often around 100,000 miles).

2. **DPF & Emissions Compliance (Post-2008 Models)** Later 2.0L TDIs (especially **2008 **) may have **DPFs or AdBlue systems**, which add complexity and cost if they fail. Early models (pre-2008) lack these but may have **higher emissions** if not properly tuned.

3. **Cold Weather Issues** Diesel engines can struggle in **freezing temperatures** due to fuel gelling or cold-start problems. A **block heater** is often necessary in cold climates.

4. **Higher Initial Repair Costs** While parts are available, **labor costs for diesel work** (especially on Audi/VW platforms) can be **20 30% higher** than gasoline repairs due to specialized tools and training.

5. **Potential for Water Contamination** Older diesels (especially in humid climates) are prone to **fuel system water issues**, leading to injector or pump failures if not addressed.

- **Electric vehicle adoption** reducing diesel s appeal.

- **Stricter emissions regulations** making older diesels less desirable for some buyers.

- **Higher insurance costs** in some areas for diesel vehicles.

- **Worn camshaft lobes** (can cause valve train noise).

- **Rod bearing wear** (less common but possible in high-mileage examples).

- **Oil leaks** (valve cover gasket, oil filter housing gasket).

- **Coolant leaks** (thermostat housing, water pump).

---

### **Key Considerations Before Purchase**

- **Fuel system cleaning** (every 50K 75K miles).

- **EGR cooler replacement** (if not done, expect failure soon).

- **Turbo inspection** (listen for whine; replace if worn).

- **DPF/AdBlue service** (if equipped).

- **Oil changes with synthetic oil** (every 5K 7K miles).

2. **Mileage & Age**

- **Under 100K miles** Likely reliable if maintained.

- **100K 150K miles** Check for **EGR cooler, turbo, and injectors**.

- **Over 150K miles** Expect **major components (turbo, HPFP, injectors) to be replaced soon**.

3. **Test Drive & Inspection**

- **Listen for turbo whine** (sign of wear).

- **Check for smoke** (blue oil burn, black fuel-rich mix, white coolant leak).

- **Test drive at highway speeds** (listen for knocking or unusual noises).

- **Inspect for leaks** (oil, coolant, fuel).

4. **Cost of Ownership**

- **Fuel savings** may be offset by **higher maintenance costs**.

- **Insurance** can be **10 20% higher** than gasoline equivalents.

- **Parts costs** add up (e.g., a new turbo labor can exceed **$1,500 $2,500**).

5. **Alternatives**

- If reliability is the top priority, consider a **well-maintained 3.0L V6 TDI (2004 2010)** or a **3.0L VR6 TDI (2009 2016)**, which are generally more robust.

- For a **lower-maintenance diesel**, a **2.0L TDI from a VW Jetta or Passat (pre-2008)** may be simpler.

---

### **Final Recommendation**

You **have experience with diesel maintenance** or are willing to **invest in proper service**.

The vehicle has a **detailed service history** (especially fuel system, turbo, and EGR).

You **plan to keep it for at least 5 7 years** and budget for **potential major repairs** (turbo, injectors, EGR cooler).

You **intend to modify it** (tuning, upgraded parts) to justify the long-term cost.

You **operate it in a climate where cold starts are not an issue** (or have a block heater).

You **lack mechanical knowledge** or **can t afford unexpected repairs**.

The **mileage is over 150K without proof of major component replacements**.

The **EGR cooler, turbo, or injectors show signs of wear**.

You **don t want to deal with emissions-related issues** (DPF/AdBlue in later models).

---

### **Best Use Cases**

- **Project Car** If you re comfortable with **modifications and maintenance**, this engine can be **built into a high-performance diesel** (e.g., **400 HP with a turbo swap and tuning**).

- **Commercial/Heavy-Duty Use** If used for **taxi, delivery, or towing**, the fuel efficiency and torque make it worthwhile.

- **Long-Term Owner with Budget** If you **plan to keep it 10 years** and **budget for repairs**, it can be a **cost-effective powerplant**.

### **Alternative Recommendations**

- **For Simplicity:** A **pre-2008 2.0L TDI (no DPF)** in a **VW Jetta or Passat** is easier to maintain.

- **For Reliability:** A **3.0L V6 TDI (2004 2010)** or **3.0L VR6 TDI (2009 2016)** is more robust.

- **For Modern Convenience:** Consider a **used 3.0L TDI (2016 ) with AdBlue** if emissions compliance is a concern.

---

### **Conclusion**

The **2003 2013 Audi 2.0L TDI (03B) 16-valve cylinder head** is a **capable but high

Details:

The 03B103373E cylinder head often identified by casting H7 023D fits a wide range of Volkswagen Group vehicles equipped with 2.0L TDI 16V diesel engines produced between approximately 2003 and 2013. Fits model's: Volkswagen: Golf Mk5 / Mk6 2003 2013. Used Cylinder Head for VW / Audi 2.0 Liter, 16 valve TDI Diesel. Pasta B6 2005 2010.

Head has been resurfaced and had a valve job with new guides. It is most commonly found on engines using the BKD, AZV, or BMN engine codes.

part #: 03b103373e prices

• $250.00-$350.00

specifications cylinderheapar:

• for models: H7
• for makes: Audi
• for years: 2003-2016
• brand: Vw
• mpn: 03b103373e
• type: Cylinder Head
• material: Aluminum
• vintage part: No

shipping cylinderheapar:

• cost: $99.00
• transit: 5-11 Days
• class: Standard, Economy
• service: USPS Ground Advantage, UPS Ground Saver, FedEx Ground Economy
• type: Calculated
• carrier: USPS, UPS, FedEx

offer cylinderheapar:

• quantity: 1
• started: March 5, 2026
• sold: 0
• best offers: True
• availability: In Stock
• options: Ship-to-home

payments cylinderheapar:

• credit card: Discover
• wallet: Google-pay
• other

returns cylinderheapar:

• policy: No Returns

seller cylinderheapar:

• city: Stratford, Connecticut
• rating: 100.0%
• # reviews: 152

general cylinderheapar:

• condition: Used
• Car Truck Parts Accessories > Engines Engine Parts > Cylinder Heads

Vw 03B103373E Is Similar To:

• 021.101.3710 Vw Porsche Rebuilt Cylinder Heads Part (35.9% similar) Look at the photos for overall condition. These came with a parts car I bought many years ago...(February 16th, 2019)
• 021.101.371 Vintage Vw Dual Port Cylinder Head 104.45mm (34.8% similar) Buyer pays return shipping. But there are no visible cracks. I cannot guarantee use or longevity. 45MM this is a used head and not new Vw dual port HEAD021...(December 27th, 2015)
• 1978-82 Pair 2.0l Westfalia Vanagon 2 Cylinder Vw Heads Rebuilt Liter Bus 022101061l (43.5% similar) Free shipping within the us 48 states. Liter heads for a Vw bus or Yangon. They have been stored for years after being rebuilt. Please look at pictures for condition...(April 7th, 2015)
• 022.101.372.g Vintage Vw Dual Port Cylinder Head (32% similar) Buyer pays return shipping. Vw dual port HEAD022.FOR parts not working this is a used head and not new...(November 7th, 2015)
• Temperature 022906041a Vw Head Porsche Iv 914 Type Sensor (19.4% similar) ...(April 10th, 2015)
• 028103373n Vw Ahu Afn Cylinder Head Tdi Genuine Used (48.1% similar) Selling a genuine oem Volkswagen cylinder head for an Au 1z AFN tdi engine. In the north America this will fit tdi cars with a head is in used condition and can be run. 9 liter engine. Run it as or rebuild for a spare. The head has been cleaned up a little around valves to make sure there aren any ...(March 18th, 2019)
• 101 375h 043 Vw 375 1975-76 Beetle Head (29.3% similar) 375H '75 '76 1600CC dual port 9MM ex...(May 3rd, 2015)
• 043 101 375k Volkswagen Big Dual Port Cylinder Head Vw Ported Springs Turbo (40.8% similar) I have one 375K dual port head. Mileage use unknown. 5X32 valves, cut for 90. Please see pics for detail condition. 5 and dual springs, no cracks, good spark plug threads. Has big ports, stock 35...(March 14th, 2019)
• 043.101.375r Vw Rebuildable Core Dual Port Head (25.8% similar) Rebuild able core no cracks or broken fins...(November 25th, 2018)
• 043101355uc Empi Vw Cylinder Head For Dual Port Complete Each (42% similar) 5MM, dual port, complete, each new not rebuilt complete Vw cylinder head for port type 1 based engines is machined 85. The Vw dual port head is originally used on 1971 through 1974 beetles karma gas, type 2 bus model's and 1973 to things. The heads are sold individually, 2 required per engine...(May 3rd, 2018)
• 043198035sp Vw Head Stud Kit Single Port 8mm 48pc (23.8% similar) All express orders are personally handled by the representative you speak with in order to streamline the process...(November 3rd, 2016)