Opel Signum 2003 2.0-16V Turbo
Opel Signum 2003 2.0 petrol description
Hatchback Opel Signum 2003 2.0-16V Turbo has been produced from June, 2003 to August, 2005. It has four-cylinder petrol engine with displacement of 2.0 litres, which produces power of 175 horsepower on 5500 rpm and torque 265 Nm (Newton metres) on 2500 revolutions per minute.
This 4-cylinder 16-valve engine camshaft is driven by chain (What is an engine chain and belt? ). Engine has fuel injection system and Garrett GT2052S turbine. Engine versions compliant with Euro 4 and Euro 5 emission standards available. Engine lifespan (mileage before major repairs or overhaul) can last from 260 up to 430 thousand kilometres. Remember that engine life depends on regular maintenance and the quality of the materials used (oils, fuels, etc.).
More engine specs
The engine is identical to Saab B207L engine. It features an aluminum alloy block with cast iron liners and a chain-driven timing system ...
This Opel Signum 2.0 engine oil type is 5W-30 and oil capacity is 5.7 litres.
Opel Signum 2003 2.0-16V Turbo has front wheel drive (FWD) and manual gearbox with 6 gears.
Opel Signum 2003 2.0-16V Turbo accelerates to speed 100 kilometres per hour in 9.4 seconds. The maximum speed of this car is 220 km/h.
Opel Signum 2003 2.0-16V Turbo fuel consumption is 9.2 litres per 100km in combined city/highway mode (10.9 km/l), city fuel economy - 13.1 l/100km, fuel consumption on highway - 6.9 l/100km. Fuel tank capacity is 60 litres or 15.85 gallons, which gives a mileage up to 640 kilometers without refueling in urban cycle and even up to 860 kilometers on highway.
According to user reviews, the real everyday fuel consumption of this Opel is in line with the figure specified by the manufacturer. More - Real Opel Signum fuel consumption.
Opel Signum safety
During safety testing Opel Signum has obtained 4 stars from five, which means good safety level.
Adults (driver and passenger) safety of Opel Signum is evaluated with four stars, and for pedestrian protection Opel Signum got one star.

Opel Signum 2003 2.0-16V Turbo technical data
Model: | Opel Signum 2.0-16V Turbo | ||
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Body style: | Hatchback | ||
Production period: | 2003. June ... 2005. August | ||
Engine: | 1998 cm3 Petrol, 4 cylinders | CO2 emissions: | 221 g/km |
Power: | 175 HP ON 5500 RPM | Torque: | 265 NM ON 2500 RPM |
Gearbox: | Manual gearbox (6 gears) | Drive type: | Front wheel drive (FWD) |
Top speed: | 220 km/h | Acceleration 0-100 km/h: | 9.4 seconds |
Fuel consumption (l/100km): | 9.2 (combined) 13.1 (urban) 6.9 (highway) | ||
Real fuel consumption: | 9.4 l/100km (25 MPG) by user reviews from various sources | ||
Fuel tank capacity: | 60 litres (15.9 gallons) | ||
Car dimensions: | 4.64m (length) 1.80m (width) 1.47m (height) | ||
Turning diameter: | 11.2 meters | ||
Seats: | 5 seats | ||
Trunk capacity: | 365 litres | ||
Trunk max capacity: | 1410 litres (with rear seats folded down) | ||
Gross weight: | 2075 kg |
Opel Signum 2003 2.0-16V Turbo engine Z20NET
Engine reliability and common problems:
The engine is identical to Saab B207L engine. It features an aluminum alloy block with cast iron liners and a chain-driven timing system without variable valve timing.It has two balance shafts with a separate chain. The engine is overall reliable. Around 200,000 km, replacing the timing chain and the balance shaft chain often becomes necessary. Replacing two chains, tensioners, gears, and guides involves significant costs. Symptoms like knocking, rattling, and ticking noises, especially during a cold start, indicate potential chain issues. If the timing chain is not replaced in time, metal shavings can appear, leading to bearing damage and clogged oil channels. In severe cases, the stretched chain can skip, bending the valves and requiring an extensive engine overhaul.The turbocharger is durable overall, but its wastegate valve frequently fails, requiring attention. Another common issue is the short lifespan of the PCV system valve, which often needs replacement.
The crankshaft position sensor is a vulnerable component. Its failure can prevent the engine from starting or cause it to stall while driving. However, replacing the sensor is straightforward.
Overall, this engine can last around 260,000 to 430,000 km if properly maintained, using the correct quality oil and fuel, and carrying out regular checks and maintenance.
The engine has hydraulic valve tappets (lifters), which provide quieter operation and do not require periodic adjustment, but are more complex in design and can cause serious engine damage in the event of failure.
Engine displacement | 1998 cm3 |
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Number of cylinders | 4 |
Bore (cylinder diameter) | 86 mm |
Stroke length (piston move) | 86 mm |
Compression ratio | 9.5 : 1 |
Camshaft drive | Timing chain Chain motors are considered more reliable, chain replacement usually is required less often than a timing belt, but they are often louder and vibrate more. More service info |
Timing chain change interval | 200,000 km (recommended) Sometimes manufacturers do not specify timing chain replacement intervals and design chains for engine life. However, once the recommended change interval has been reached, it is recommended to periodically check the condition of the chain and to change the chain if excessive stretching is detected or if unusual noises from the engine or other symptoms occur. |
Fuel system | Injection |
Opel Signum 2003 2.0-16V Turbo oil type | 5W-30 |
Oil capacity | 5.7 litres (6 quarts) More service info |
Coolant capacity | 7.5 litres (7.9 quarts) |
Power | 175 HP ON 5500 RPM |
Torque | 265 NM ON 2500 RPM |
Start of production (year) | 2003 |
Duration of production | 6 years |
Engine also used on | Opel Vectra |
All Opel Signum hatchback [2003 - 2005] modifications
Modification | Engine | Power | Consumption | Gearbox |
---|---|---|---|---|
Opel Signum 2004 1.8-16V Jan 2004 — Aug 2004 | 1.8 Petrol | 122 HP | - | Automatic |
Opel Signum 2003 1.8-16V
Jun 2003 — Aug 2004 Most fuel efficient petrol version |
1.8 Petrol | 125 HP | 7.9 l/100km | Manual (5) |
Opel Signum 2004 1.9 CDTi Aug 2004 — Aug 2005 | 1.9 Diesel | 120 HP | 6.0 l/100km | Manual (6) |
Opel Signum 2004 1.9 CDTi Apr 2004 — Aug 2005 | 1.9 Diesel | 150 HP | 6.1 l/100km | Manual (6) |
Opel Signum 2004 1.9 CDTi Aug 2004 — Aug 2005 | 1.9 Diesel | 150 HP | 7.2 l/100km | Automatic (6) |
Opel Signum 2003 2.0-16V Turbo Jun 2003 — Aug 2005 | 2.0 Petrol | 175 HP | 9.2 l/100km | Manual (6) |
Opel Signum 2003 2.0 DTI ECOTEC
Jan 2003 — Dec 2004 Most fuel efficient diesel version |
2.0 Diesel | 101 HP | 5.9 l/100km | Manual (5) |
Opel Signum 2003 2.2-16V DGi Jun 2003 — Aug 2005 | 2.2 Petrol | 155 HP | 8.1 l/100km | Manual (5) |
Opel Signum 2003 2.2-16V DGi Jun 2003 — Aug 2005 | 2.2 Petrol | 155 HP | 9.1 l/100km | Automatic (5) |
Opel Signum 2003 2.2 DTi-16V
Jun 2003 — Aug 2004 Most fuel efficient diesel version by real consumption |
2.2 Diesel | 125 HP | 6.3 l/100km | Manual (5) |
Opel Signum 2003 2.2 DTi-16V Jun 2003 — Aug 2004 | 2.2 Diesel | 125 HP | 7.6 l/100km | Automatic (5) |
Opel Signum 2003 3.0-V6 CDTI
Jun 2003 — Aug 2005 Most powerfull diesel version (177 HP) |
3.0 Diesel | 177 HP | 7.4 l/100km | Manual (6) |
Opel Signum 2003 3.0-V6 CDTI
Jun 2003 — Aug 2005 Most powerfull diesel version (177 HP) |
3.0 Diesel | 177 HP | 7.9 l/100km | Automatic (5) |
Opel Signum 2003 3.2-V6 Cosmo
Jun 2003 — Aug 2005 Most dynamic version - 100 km/h in 7.9 seconds |
3.2 Petrol | 211 HP | 10.1 l/100km | Manual (5) |
Opel Signum 2003 3.2-V6 Cosmo
Jun 2003 — Aug 2005 Most powerfull petrol version (211 HP) |
3.2 Petrol | 211 HP | 10.7 l/100km | Automatic (5) |