Mitsubishi Sigma 4G63 Sedan (1980-1982) RWD Petrol 2.0L - Variant 1 (1980–1982)

Welcome to the CARFIX Vehicle Wiki for the MITSUBISHI SIGMA Base. This guide provides valuable information for owners looking to understand their vehicle's maintenance needs, potential issues, and general ownership experience in New Zealand.

Parts for the Mitsubishi Sigma 4G63 Sedan (1980-1982) RWD Petrol 2.0L - Variant 1

• Gear Oil Gearbox (32)
• Radiator Coolant (15)
• Axle Gear Oil (11)
• Oil Filter (10)
• Spark Plug (9)
• Wheel Bearing (6)
• Radiator Cap (6)
• Spark Plug Tube Seal (6)
• Oil Seal Oil Pump (6)
• Oil Seal Crank Shaft Front / Timing Front (5)
• Water Pump (5)
• Timing Cover Gasket/Kit (4)
• Oil Seal Axle / Drive Shaft - Rear Outer (4)
• Suspension Bush Radius Arm Front (4)
• Brake Fluid (4)
• Valve Cover Bolt Seal/Washer (4)
• Main Bearing Crank Shaft (4)
• Fuel Filter (4)
• Universal Joint / Coupling Rear (3)
• Universal Joint / Coupling Front (3)
• Wheel Bearing Kit/Hub Rear (3)
• Wheel Nut (3)
• Piston Ring (3)
• Pitman Arm (3)
• Brake Pads Front (3)
• Steering Rack End (3)
• Oil Seal Camshaft End (3)
• Engine Mount Front (3)
• Timing Belt Camshaft (3)
• Oil Seal Crank Shaft Rear / Rear Main Bearing (3)
• Ignition Module (3)
• Manifold Gasket Exhaust (3)
• Temperature Sensor / Sender Coolant (3)
• Suspension Bush Rear Control Arm (3)
• Suspension Bush Rear Control Arm - Lower (3)
• Timing Tensioner (3)
• Valve Cover Gasket (3)
• Oil Seal Camshaft (3)
• Cylinder Head (2)
• Shocks / Strut Rear (2)
• Ball Joint Front (2)
• Coil Spring Front Standard Profile (2)
• Suspension Bush Sway Bar Link (2)
• Coil Spring Rear Standard Profile (2)
• Steel Washer Sway Bar Link Front (2)
• Steering Box Seal Kit (2)
• Disc Brake Rotor Front (2)
• Brake Pads Rear (2)
• Oil Pressure Switch/Sender (2)
• Cylinder Head Gasket (2)
• Head Set/Valve Regrind Gasket Set (2)
• Valve Stem Seal (2)
• Exhaust Flange Gasket Pipe (2)
• Conrod Bearing (2)
• Tie Rod End (2)
• Oil Seal Auxillary Shaft (2)
• Piston (2)
• Wheel Nut & Stud Rear (2)
• Wheel Bearing Front (2)
• Thermostat (2)

Known issues

Like many vehicles of its era, the MITSUBISHI SIGMA may experience certain common issues over time. Owners should be aware of the following:
• Rust: Rust can be a concern, particularly in the sills and wheel arches. Regular washing and rust prevention measures can help mitigate this.
• Automatic Transmission: If equipped with an automatic transmission, be aware of potential issues as mileage increases. Look for signs of slipping or rough shifting.
• Distributor Problems: The distributor can sometimes cause issues leading to poor engine running or starting problems. Regular inspection and maintenance are recommended.

These issues are typically observed between 150,000 and 250,000 kilometers.

WOF tips

When preparing your MITSUBISHI SIGMA for its Warrant of Fitness (WOF) inspection, pay particular attention to these potential watch points:
• Corrosion around rear suspension mounts: This is a common area for rust and failure. Ensure a thorough inspection is carried out.
• Excessive play in steering idler arm: This can affect steering accuracy and safety. Any excessive play should be addressed.

About the Mitsubishi Sigma 4G63 Sedan (1980-1982) RWD Petrol 2.0L - Variant 1

The MITSUBISHI SIGMA was a common sight on New Zealand roads, offering families a comfortable and reliable vehicle. It was often perceived as a step up from smaller Japanese models.

Standard Fitment Considerations:
• Brakes: Regular inspection of brake pads and rotors is crucial for safe operation. Listen for unusual noises and check brake fluid levels periodically.
• Filters: Replacing air, oil, and fuel filters at recommended intervals will help maintain engine performance and efficiency. Consult your owner's manual for specific schedules.
• Suspension: A well-maintained suspension system ensures a comfortable ride and proper handling. Inspect shocks, struts, and other components for wear or damage.

Questions owners ask

What are the common rust spots I should check on my 1980-1982 MITSUBISHI SIGMA in New Zealand?

For your MITSUBISHI SIGMA, rust is a common concern, particularly in the sills and wheel arches. When preparing for your WOF, pay extra attention to corrosion around the rear suspension mounts, as this is a frequent failure point. Regular washing and rust prevention can help mitigate these issues.

My MITSUBISHI SIGMA (1980-1982) has an automatic transmission and it's starting to feel a bit off. What should I be looking out for?

If your MITSUBISHI SIGMA has an automatic transmission, as it approaches or exceeds 150,000 to 250,000 kilometers, you might start to experience issues. Look out for signs of slipping or rough shifting, as these can indicate potential problems with the transmission.

Where can I get brake pads and filters for my 1980-1982 MITSUBISHI SIGMA in NZ?

CARFIX stocks 207 SKUs for your MITSUBISHI SIGMA (1980-1982), including essential items like brake pads, oil filters, air filters, and fuel filters. You can find these parts readily available through CARFIX for your maintenance needs.

What should I specifically check on my MITSUBISHI SIGMA (1980-1982) before its WOF inspection in New Zealand?

When preparing your MITSUBISHI SIGMA for its WOF, pay close attention to corrosion around the rear suspension mounts, as this is a common area for rust and potential failure. Additionally, check for excessive play in the steering idler arm, as this can affect steering accuracy and safety and will need to be addressed.

I'm having trouble starting my 1980-1982 MITSUBISHI SIGMA, or the engine is running poorly. What could be the cause?

If your MITSUBISHI SIGMA is experiencing starting problems or poor engine running, the distributor can sometimes be the culprit. Issues with the distributor are commonly observed as vehicles reach between 150,000 and 250,000 kilometers. Regular inspection and maintenance of this component are recommended.

How often should I change the oil and filters on my MITSUBISHI SIGMA (1980-1982)?

The service interval for your MITSUBISHI SIGMA is 10,000km. At these intervals, it's crucial to replace your oil, air, and fuel filters to maintain engine performance and efficiency. Always consult your owner's manual for specific schedules.