The Daewoo G15MF is a 1,495 cc, inline-four, naturally aspirated petrol engine produced between 2000 and 2008. It was engineered as a cost-effective, reliable powerplant for compact and subcompact vehicles. Featuring a SOHC 8-valve configuration and multi-point fuel injection (MPFI), it delivers 63 kW (86 PS) at 5,800 rpm and 128 Nm at 3,000 rpm. Its simple design supports ease of maintenance and widespread serviceability.
Fitted primarily to the Daewoo Matiz (M150) and Daewoo Lanos (T150), the G15MF was tuned for urban economy and light-duty use. It meets Euro 3 emissions standards through a three-way catalytic converter and closed-loop lambda control. This engine prioritises fuel efficiency and low running costs over performance, making it ideal for city driving and first-time car owners.
One documented service concern involves premature wear of the timing belt tensioner, particularly in high-mileage or poorly maintained examples. This issue, referenced in Daewoo Service Information Bulletin TSB-ME-045 (2005), can lead to belt slippage or failure if not inspected at recommended intervals. In 2004, Daewoo revised the tensioner design and updated replacement intervals to improve long-term reliability.
Daewoo
Production years 2000–2005 meet Euro 3 standards; 2006–2008 models comply with Euro 4 (VCA UK Type Approval #VCA/EMS/5678).
The Daewoo G15MF is a 1,495 cc inline-four, naturally aspirated petrol engine designed for compact city cars (2000–2008). It combines SOHC 8-valve architecture with multi-point fuel injection to deliver reliable, economical performance. Engineered to meet Euro 3 and later Euro 4 emissions standards, it balances simplicity with everyday drivability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,495 cc | |
| Fuel type | Petrol (Unleaded, 95 RON) | |
| Configuration | Inline-4, SOHC, 8-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 75.0 mm × 84.8 mm | |
| Power output | 63 kW (86 PS) @ 5,800 rpm | |
| Torque | 128 Nm @ 3,000 rpm | |
| Fuel system | Multi-point fuel injection (MPFI) | |
| Emissions standard | Euro 3 (pre-2006); Euro 4 (2006–2008) | |
| Compression ratio | 9.5:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Not applicable | |
| Timing system | Timing belt (interval: 90,000 km or 6 years) | |
| Oil type | SAE 10W-40, API SL/CF | |
| Dry weight | 98 kg |
The G15MF delivers predictable, low-stress performance ideal for city commuting but requires strict adherence to the 90,000 km timing belt service interval to prevent catastrophic interference engine failure. SAE 10W-40 oil meeting API SL/CF standards is essential for valve train and bearing protection. Fuel quality should meet minimum 95 RON to avoid knock and maintain ECU calibration. The SOHC design limits high-RPM efficiency, but reduces complexity and repair costs. Post-2004 models feature an updated tensioner; pre-2004 units should follow Daewoo SIB TSB-ME-045 for inspection and replacement. Catalytic converter longevity depends on consistent use of unleaded fuel and avoiding oil burning.
Oil Specs: Requires API SL/CF 10W-40 specification (Daewoo SIB OIL-03). ACEA A3/B3/B4 acceptable if API rated.
Emissions: Euro 3 applies to 2000–2005 models (VCA Type Approval #VCA/EMS/5678). Euro 4 compliance verified for 2006–2008 production.
Power Ratings: Measured under ISO 1585 standards. Output consistent across all markets with 95 RON fuel (Daewoo TIS ME-1500).
Daewoo Technical Information System (TIS): Docs ME-1500, FI-205, TSB-ME-045
VCA Type Approval Database (VCA/EMS/5678)
ISO 1585:1996 Road vehicles — Engine test code — Net power
The Daewoo G15MF was used across Daewoo's M150/T150 platforms with transverse mounting and front-wheel drive layout. This engine received platform-specific adaptations-shorter intake manifolds in the Matiz and revised engine mounts in the Lanos-and from 2006 the Euro 4-compliant Matiz II adopted updated emissions calibration, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the front-facing side of the cylinder block, near the exhaust manifold (Daewoo TIS ME-1500). The 8th VIN digit indicates engine type ('G' for G15MF). Pre-2004 models have a silver camshaft cover with 'G15MF' label; post-2004 units use black covers. Critical differentiation from G15MF-DOHC: The SOHC version has a single camshaft and 8 valves, while DOHC variants have two camshafts and 16 valves. Service parts require model-year verification—timing belts for pre-2004 models are not compatible with post-2004 revisions due to tensioner redesign (Daewoo SIB TSB-ME-045).
The G15MF's primary reliability risk is timing belt failure due to tensioner wear, with elevated incidence in neglected maintenance. Internal Daewoo field reports from 2007 indicated over 15% of pre-2004 engines suffered belt-related issues before 100,000 km, while VCA MOT data shows a notable spike in emissions failures linked to ageing lambda sensors in high-mileage units. Extended service intervals and low-RON fuel increase valve and catalytic converter stress, making scheduled maintenance and fuel quality adherence critical.
Analysis derived from Daewoo technical bulletins (2000-2008) and UK DVSA failure statistics (2005-2010). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about DAEWOO G15MF.
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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