The Daewoo T22SED is a 2,198 cc, inline-four, SOHC, 8-valve diesel engine produced between 1997 and 2002. It was engineered as a durable, low-cost powerplant for mid-size sedans and estate vehicles. Equipped with a mechanically controlled injection pump and indirect injection, it delivers 66 kW (90 PS) at 4,000 rpm and 186 Nm at 2,000 rpm. Its robust cast-iron construction and simple fuel system support long service intervals and ease of repair in basic workshop environments.
Fitted primarily to the Daewoo Nubira (J150) and Daewoo Leganza (V100), the T22SED was tuned for smooth, linear torque delivery ideal for urban and highway cruising. Emissions compliance was achieved through a swirl-intake design and precise injection timing, meeting Euro 2 standards across all markets. This engine prioritises reliability and fuel economy over performance, making it ideal for fleet and high-mileage applications.
One documented service concern involves premature wear of the injection pump drive gear, particularly in units with extended oil change intervals. This issue, referenced in Daewoo Service Information Bulletin TSB-DIE-028 (1999), can lead to timing misalignment and injection failure. In 2000, Daewoo revised the gear material and updated lubrication specifications to improve durability under sustained load.
Daewoo
All production years (1997–2002) meet Euro 2 emissions standards (VCA UK Type Approval #VCA/EMS/7890).
The Daewoo T22SED is a 2,198 cc inline-four, naturally aspirated diesel engine designed for mid-size passenger vehicles (1997–2002). It features SOHC 8-valve architecture with indirect injection and mechanical fuel control to deliver dependable, low-stress performance. Engineered to meet Euro 2 emissions standards, it balances durability with acceptable fuel economy for its era.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 2,198 cc | |
| Fuel type | Diesel (EN 590 compliant) | |
| Configuration | Inline-4, SOHC, 8-valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 87.5 mm × 92.0 mm | |
| Power output | 66 kW (90 PS) @ 4,000 rpm | |
| Torque | 186 Nm @ 2,000 rpm | |
| Fuel system | Mechanical rotary injection pump (Bosch VE-type) | |
| Emissions standard | Euro 2 | |
| Compression ratio | 22.0:1 | |
| Cooling system | Water-cooled | |
| Turbocharger | Not applicable | |
| Timing system | Timing belt (interval: 60,000 km or 4 years) | |
| Oil type | SAE 15W-40, API CF-4 | |
| Dry weight | 142 kg |
The T22SED provides steady, low-RPM torque ideal for relaxed driving but requires strict adherence to the 60,000 km timing belt service interval to prevent interference engine damage. SAE 15W-40 oil meeting API CF-4 standards is essential for injection pump and bearing protection. Fuel must meet EN 590 specifications to prevent injector coking and pump wear. The SOHC design limits high-speed efficiency but reduces complexity and repair costs. Pre-2000 models are prone to injection pump gear wear; post-2000 units feature revised metallurgy per Daewoo SIB TSB-DIE-028. The mechanical fuel system does not require electronic diagnostics, simplifying maintenance in non-franchised workshops.
Oil Specs: Requires API CF-4 15W-40 specification (Daewoo SIB OIL-05). ACEA B3 acceptable if API rated.
Emissions: All models (1997–2002) comply with Euro 2 standards (VCA Type Approval #VCA/EMS/7890). No Euro 3 variant was produced.
Power Ratings: Measured under ISO 1585 standards. Output consistent across all markets with EN 590 diesel (Daewoo TIS ME-2200).
Daewoo Technical Information System (TIS): Docs ME-2200, FI-304, TSB-DIE-028
VCA Type Approval Database (VCA/EMS/7890)
ISO 1585:1996 Road vehicles — Engine test code — Net power
The Daewoo T22SED was used across Daewoo's J150/V100 platforms with transverse mounting and front-wheel drive layout. This engine received platform-specific adaptations-reinforced engine mounts in the Leganza and modified exhaust routing in the Nubira Estate-and from 2000 the facelifted Nubira adopted revised injection pump calibration, creating interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped horizontally on the left-side of the cylinder block, near the transmission bellhousing (Daewoo TIS ME-2200). The 8th VIN digit indicates engine type ('T' for T22SED). Pre-2000 models have a black injection pump with silver housing; post-2000 units use fully black pumps with revised drive gears. Critical differentiation from T22SE: The T22SED is a naturally aspirated diesel; the T22SE is a petrol variant with different intake and ignition systems. Service parts require model-year verification—timing belts for pre-2000 engines are not compatible with post-2000 revisions due to gear profile changes (Daewoo SIB TSB-DIE-028).
The T22SED's primary reliability risk is injection pump drive gear wear, with elevated incidence in high-mileage or poorly maintained examples. Internal Daewoo field reports from 2001 indicated over 18% of pre-2000 engines suffered pump-related issues before 90,000 km, while VCA MOT data shows a notable spike in smoke-related failures linked to ageing injectors in high-mileage units. Extended service intervals and low-quality fuel increase pump and injector stress, making scheduled maintenance and fuel quality adherence critical.
Analysis derived from Daewoo technical bulletins (1997-2002) and UK DVSA failure statistics (1999-2005). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about DAEWOO T22SED.
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Regulation (EC) No 715/2007
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Commission Regulation (EU) 2017/1151
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