The Daewoo H20D is a 1,998 cc, inline-four petrol engine produced between 2004 and 2008. It features dual overhead camshafts (DOHC), multi-point fuel injection (MPFI), and variable valve timing (VVT), delivering 106 kW (144 PS) and 186 Nm of torque. This configuration enables strong mid-range performance ideal for mid-size sedans and wagons.
Fitted to models such as the Daewoo Nubira II, Chevrolet Epica, and Holden VZ Captiva, the H20D was engineered for balanced driving dynamics with an emphasis on refinement and reliability. Emissions compliance was achieved through a three-way catalytic converter and closed-loop lambda control, allowing Euro 4 standard certification across European markets.
One documented concern is premature wear of the hydraulic valve lifters, which may result in persistent tappet noise under load. This issue, referenced in GM Korea Service Information Bulletin 06-01-014, is primarily associated with extended oil change intervals and low oil pressure conditions. From 2006, revised lifter materials and oil gallery design were implemented to improve durability.
Daewoo
Production years 2004–2005 meet Euro 3 standards; 2006–2008 models comply with Euro 4 depending on market (VCA UK Type Approval #VCA/EMS/6789).
The Daewoo H20D is a 1,998 cc inline-four petrol engine engineered for mid-size family vehicles (2004–2008). It combines multi-point fuel injection with variable valve timing to deliver smooth throttle response and consistent fuel economy. Designed to meet Euro 3 and later Euro 4 emissions standards, it balances urban drivability with highway efficiency.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,998 cc | |
| Fuel type | Petrol (Unleaded, 95 RON min) | |
| Configuration | Inline-4, DOHC, 16-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 86.0 mm × 86.0 mm | |
| Power output | 106 kW (144 PS) @ 6,000 rpm | |
| Torque | 186 Nm @ 4,500 rpm | |
| Fuel system | Multi-point fuel injection (MPFI) | |
| Emissions standard | Euro 3 (pre-2006); Euro 4 (2006–2008) | |
| Compression ratio | 10.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Not applicable | |
| Timing system | Rubber timing belt with hydraulic tensioner | |
| Oil type | SAE 5W-30 (API SM/CF or higher) | |
| Dry weight | 142 kg |
The naturally aspirated design provides predictable power delivery suitable for daily driving but requires strict adherence to 60,000 km timing belt replacement intervals to prevent catastrophic interference engine damage. SAE 5W-30 oil meeting API SM/CF specifications is essential for hydraulic lifter stability and valve train protection. Extended idling or delayed oil changes increase the risk of lifter collapse and noise. Fuel quality is critical—low-octane petrol may trigger knock sensor intervention, reducing performance. Post-2006 models feature upgraded lifter materials; pre-2006 units should follow GM Korea SIB 06-01-014 for retrofit compatibility. Regular air filter and spark plug maintenance ensures consistent emissions compliance.
Oil Specs: Requires SAE 5W-30 meeting API SM/CF or higher (GM Korea SIB 06-01-014). Compatible with ILSAC GF-4 standards.
Emissions: Euro 3 certification applies to pre-2006 models only (VCA Type Approval #VCA/EMS/6789). Euro 4 compliance confirmed for 2006–2008 units in EU markets.
Power Ratings: Measured under SAE J1349 standards. Full output requires 95 RON unleaded fuel (Daewoo TIS Doc. H20-1030).
Daewoo Technical Information System (TIS): Docs H20-1030, SIB 06-01-014
VCA Type Approval Database (VCA/EMS/6789)
SAE International: J1349 Engine Power Certification Standards
The Daewoo H20D was used across Daewoo's Nubira and Evanda platforms with transverse mounting and shared under GM Korea's global powertrain strategy. This engine received platform-specific adaptations-shorter intake manifolds in the Nubira II and revised ECU tuning in the Captiva-and from 2006 the facelifted Epica models adopted enhanced emissions controls, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the front face of the cylinder block near the transmission bellhousing (Daewoo TIS H20-1050). The 8th VIN digit indicates engine type ('H' for H20D series). Pre-2006 models have silver plastic valve covers with black accents; post-2006 units use all-black covers. Critical differentiation from H16D: H20D has larger intake manifold and distinct exhaust manifold casting. Service parts require production date verification—timing belt kits for pre-2006 models are not compatible with post-2006 revisions due to lifter redesign (GM Korea SIB 06-01-014).
The H20D's primary reliability risk is hydraulic valve lifter wear on early builds, with elevated incidence in high-temperature climates. Internal GM Korea quality reports from 2005 indicated a significant number of pre-2006 engines requiring lifter replacement before 80,000 km, while UK DVSA MOT records show increased emissions-related failures linked to lambda sensor degradation in urban-driven vehicles. Extended idling and delayed maintenance amplify lifter and belt stress, making service interval adherence critical.
Analysis derived from Daewoo technical bulletins (2004-2008) and UK DVSA failure statistics (2010-2023). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about DAEWOO H20D.
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Regulation (EC) No 715/2007
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