Opel Signum facelift 2005 3.0 V6 CDTI (184 Hp) Automatic


Overall Rating

7.8 / 10
Safety 5.0 / 5
Engine 4.0 / 5
Value 3.8 / 5
Performance 3.5 / 5
Comfort 4.0 / 5
People\'s Opinion N/A / 5
Not Rated

Opel Signum:

The Opel Signum is a large front-engine, front-wheel drive, five-passenger, mid-size executive hatchback manufactured and marketed by the German car manufacturer Opel from 2003 to 2008, exclusively over a single generation, derived from the Opel Vectra. Marketed almost exclusively in Europe, a rebadged Signum was marketed in the United Kingdom as the Vauxhall Signum. The Signum used the long wheelbase version of the GM Epsilon platform also used by the Opel Vectra Caravan.
As a very large hatchback with a nearly vertical tailgate, its dimensions placed it between traditional large family cars and executive cars. In most markets, it was also priced accordingly. The Opel Signum, like the Renault Vel Satis, was intended to capture a new market segment....(Read more on Wikipedia)

facelift 2005 Overview:

Opel Signum (facelift 2005). With 370 Nm of torque, it offers ample pulling power. It has moderate fuel consumption (~10.3 l/100km). With a weight of 1670 kg, it falls in the mid‑range. Front‑wheel drive delivers efficiency and easy handling. Acceleration is relatively slow (0–100 km/h in 9.8 s). The top speed reaches 219 km/h. A compact car with a rear door that swings upward to provide access to the cargo area. Seating for 5 makes it ideal for daily use.

3.0 V6 CDTI (184 Hp) Automatic Verdict:

Rating 4 stars

Performance Verdict

Provides strong torque and smooth, refined acceleration, making it a capable and comfortable cruiser.

Fuel Economy

Offers decent fuel economy for a V6 diesel, especially considering its power and the automatic transmission.

Best Use Case: Executive transport and comfortable highway journeys, balancing power with reasonable efficiency.

Pros and Cons:

Pros:

  • • Spacious and versatile interior with flexible seating
  • • Comfortable ride quality, ideal for long journeys
  • • Strong V6 engine options (petrol and diesel) offer impressive performance
  • • Distinctive styling sets it apart from traditional estates
  • • Good value on the used market, offering a lot of car for the money

Cons:

  • • Some engines can be very thirsty, especially the V6 petrols
  • • Handling is competent but not as sharp or engaging as some rivals
  • • Interior plastics and design can feel dated compared to premium competitors
  • • Potential for electronic gremlins common in cars of this era
  • • Diesel particulate filter (DPF) issues on some CDTI models if not driven correctly

Specifications:

Specifications are compared to those of the previous generation(Signum: July, 2003 - June, 2005).

General:
Brand:Opel
Model:Signum
Generation:facelift 2005
Modification (Engine):3.0 V6 CDTI (184 Hp) Automatic
Start of production:July, 2005
End of production:June, 2008
Powertrain Architecture:Internal Combustion engine
Body type:Hatchback
Seats:5
Doors:5
Engine:
Engine systems:Particulate filter
Power:184 Hp @ 4000 rpm. Same horsepower
Power per litre:62.2 Hp/l [15mm more]
Torque:370 Nm @ 1900 rpm.
Engine Model/Code:Z30DT More details about the engine Z30DT
Engine displacement:2958
Number of cylinders:6
Engine configuration:V-engine
Number of valves per cylinder:4
Fuel injection system:Diesel Commonrail
Engine aspiration:Turbocharger, Intercooler
Valvetrain:DOHC
Engine oil capacity:7.25 l
Coolant:8.3 l
Engine layout:Front, Transverse
Cylinder Bore:87.5 mm mm
Piston Stroke:82 mm mm
Compression ratio:18.5:1
Performance:
Fuel Type:Diesel
Fuel consumption (economy) - urban:10.3 l/100 km
Fuel consumption (economy) - extra urban:5.4 l/100 km
Fuel consumption (economy) - combined:7.2 l/100 km
Acceleration 0 - 100 km/h:9.8 sec
Acceleration 0 - 62 mph:9.8 sec
Maximum speed:219 km/h
Weight-to-power ratio:9.1 kg/Hp, 110.2 Hp/tonne
Weight-to-torque ratio:4.5 kg/Nm, 221.6 Nm/tonne
Acceleration 0 - 60 mph:9.3 sec
Space:
Kerb Weight:1670
Max. weight:2185
Max load:515
Trunk (boot) space - maximum:1410 l
Trunk (boot) space - minimum:365 l
Fuel tank capacity:60 l
Size:
Length:4651 mm mm [15mm more]
Width:1798 mm mm [Same width.]
Height:1460 mm mm [6mm less]
Wheelbase:2830 mm mm [Same wheelbase.]
Front track:1535 mm
Rear (Back) track:1525 mm
Powertrain:
Drivetrain ArchitectureThe Internal combustion engine (ICE) drives the front wheels of the vehicle.
Drive wheelFront wheel drive
Number of gears5
Transmission typeAutomatic
Front brakesVentilated discs [Best for performance and cooling.]
Rear brakesDisc
Assisting systemsABS (Anti-lock braking system)
Steering typeSteering rack and pinion
Power steeringHydraulic Steering
Tires size215/55 R16
Wheel rims size6.5J x 16
Front suspensionCoil spring
Rear suspensionCoil spring

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