Mitsubishi Sigma 4G32 Sedan (1980-1982) (1980–1982)

Welcome to the CARFIX vehicle wiki for the MITSUBISHI SIGMA Base. This guide provides valuable information to help you understand and maintain your Sigma, a popular choice for New Zealand families and businesses.

Parts for the Mitsubishi Sigma 4G32 Sedan (1980-1982)

• Gear Oil Gearbox (32)
• Engine Oil (19)
• Radiator Coolant (15)
• Passenger Side Blade (12)
• Driver Side Blade (12)
• Wiper Blade Front (12)
• Axle Gear Oil (11)
• Oil Filter (10)
• Brake Pads Front (8)
• Suspension Bush Radius Arm Front (4)
• Oil Seal Axle / Drive Shaft - Rear Outer (4)
• Fuel Filter (4)
• Wheel Bearing Kit/Hub Rear (4)
• Brake Fluid (4)
• Starter Motor (4)
• Spark Plug (4)
• Cylinder Head Gasket (3)
• Valve Cover Bolt Seal/Washer (3)
• Welch / Frost Plug (3)
• Wheel Nut (3)
• Suspension Bush Rear Control Arm - Lower (3)
• Valve Cover Gasket (3)
• Universal Joint / Coupling Front (3)
• Steering Rack End (3)
• Universal Joint / Coupling Rear (3)
• Wheel Bearing (3)
• Engine Mount Front (3)
• Radiator Cap (3)
• Suspension Bush Rear Control Arm (3)
• Ignition Module (3)
• Manifold Gasket Exhaust (3)
• Steel Washer Sway Bar Link Front (2)
• Suspension Bush Sway Bar Link (2)
• Ignition Coil (2)
• Pitman Arm (2)
• Head Set/Valve Regrind Gasket Set (2)
• Oil Pressure Switch/Sender (2)
• Wheel Bearing Front (2)
• Coil Spring Rear Standard Profile (2)
• Oil Cap (2)
• Wheel Nut & Stud Rear (2)
• Oil Seal Oil Pump (2)
• Oil Seal Camshaft End (2)
• Main Bearing Crank Shaft (2)
• Brake Pads Rear (2)
• Timing Belt Camshaft (2)
• Oil Seal Camshaft (2)
• Oil Seal Crank Shaft Rear / Rear Main Bearing (2)
• Exhaust Flange Gasket Pipe (2)
• Wiper Refill Front (1)
• Shocks / Strut Rear (1)
• Suspension Bush Front Control Arm - Lower (1)
• Shocks / Strut Front (1)
• Wheel Bearing Kit/Hub Front (1)
• Suspension Bush Front Sway Bar Mount (1)
• Ball Joint Front Lower (1)
• Wheel Bearing Grease Front (1)
• Strut Boot Kit Front (1)
• Steering Rack Boot Kit (1)
• Suspension Bush Rear Control Arm - Upper (1)

Known issues

Owners report a few common issues with the SIGMA Base, particularly after 120,000 - 200,000 km. These include:
• Automatic transmission issues: Premature failure of the automatic transmission has been reported in some cases. Regular transmission servicing can help mitigate this risk.
• Rust: Rust is a common concern, especially in the sills and wheel arches. Regular inspections and rustproofing treatments may be beneficial.
• Carburetor problems: Carburetor issues can lead to poor fuel economy and rough running. Ensuring the carburetor is properly tuned and maintained is crucial.

WOF tips

When taking your SIGMA Base for a Warrant of Fitness (WOF), be mindful of these areas:
• Rust around windscreen and rear window: Examiners will pay close attention to rust in these areas, as it can compromise the structural integrity and visibility.
• Lower control arm ball joints: Lower control arm ball joints are a common area of concern and wear. Regular inspection and replacement when necessary is important.
• Brake lines: Corrosion near the fuel tank is a common WOF failure point. Inspecting the brake lines regularly and addressing any corrosion promptly is crucial for safety.

About the Mitsubishi Sigma 4G32 Sedan (1980-1982)

The Mitsubishi Sigma, while not boasting a prominent motorsport heritage or groundbreaking engineering firsts, established itself as a reliable and practical vehicle in New Zealand. It served faithfully as a family car and a company runabout, offering a blend of space and straightforward functionality.

Maintaining Your SIGMA Base:

The SIGMA Base, like any vehicle of its age, requires regular maintenance to ensure optimal performance and longevity. Pay close attention to the common issues outlined below, and adhere to the recommended service intervals. Addressing potential problems early can save you significant costs and inconvenience in the long run.

Questions owners ask

What are the most common issues to look out for with a 1980-1982 MITSUBISHI SIGMA in New Zealand?

Owners of the 1980-1982 MITSUBISHI SIGMA in New Zealand commonly report issues with automatic transmissions, particularly after 120,000 - 200,000 km. Rust is also a significant concern, especially in the sills and wheel arches. Additionally, carburetor problems can lead to poor fuel economy and rough running.

Where can I get replacement lower control arm ball joints for my 1980-1982 MITSUBISHI SIGMA in NZ?

CARFIX stocks 116 SKUs for the 1980-1982 MITSUBISHI SIGMA. You can check the CARFIX website or contact your local CARFIX store for availability of lower control arm ball joints, which are a common wear item for this model.

What should I pay attention to for a WOF on my 1980-1982 MITSUBISHI SIGMA?

For a Warrant of Fitness (WOF) on your 1980-1982 MITSUBISHI SIGMA, pay close attention to rust around the windscreen and rear window, as this can affect structural integrity. Lower control arm ball joints are a common WOF failure point due to wear. Also, inspect brake lines, especially near the fuel tank, for corrosion, as this is another frequent WOF issue.

How often should I service the automatic transmission on my 1980-1982 MITSUBISHI SIGMA?

Given the reported premature failure of automatic transmissions in some 1980-1982 MITSUBISHI SIGMA models, especially after 120,000 - 200,000 km, regular transmission servicing is highly recommended to help mitigate this risk and ensure longevity.

What's the recommended service interval for a MITSUBISHI SIGMA 1980-1982?

The recommended service interval for the MITSUBISHI SIGMA 1980-1982 is every 10,000 km to ensure optimal performance and longevity.

How can I prevent rust on my 1980-1982 MITSUBISHI SIGMA, particularly in the sills and wheel arches?

To prevent rust on your 1980-1982 MITSUBISHI SIGMA, especially in common areas like the sills and wheel arches, regular inspections are crucial. Applying rustproofing treatments can also be highly beneficial in extending the life of your vehicle's body.