The Mercedes-Benz 123 series is an icon of reliability and engineering, hugely popular in New Zealand. From 1976 to 1979, these cars were known for their robust construction and longevity. However, age takes its toll, making diligent inspection and maintenance crucial for NZ owners.
Common issues include rust (especially around wheel arches, sills, and floors), worn suspension components (subframe mounts, control arm bushes), diesel injector and pump problems (diesel models), and electrical faults due to brittle wiring and corroded connections. Vacuum system leaks (affecting central locking and climate control) are also frequent.
WOF tips
Rust is a key WOF failure point, particularly around structural areas. Suspension components (shocks, springs, bushes) must be in good condition. Check brake lines and hoses for corrosion and leaks. Headlights and taillights should be fully functional. Steering systems need to be free from excessive play. Functionality of seatbelts are mandatory.
About the Mercedes-Benz 123 250
The W123 series was renowned for its durable engines, both petrol and diesel. However, diesel models, while long-lasting, can suffer from injector issues and pump wear with age. Suspension components, particularly the rear subframe mounts, are prone to deterioration. Rust is a major concern, especially in coastal regions. Electrical systems, while robust for their time, can develop faults due to age and corroded connections.
Questions owners ask
What are the most common rust spots on a MERCEDES-BENZ 123 1976–1979 in New Zealand?
Rust is a significant concern for the MERCEDES-BENZ 123, especially in New Zealand's coastal climate. Common areas to check include the wheel arches, sills, and floor pans. Structural areas are particularly prone to rust and can be a WOF failure point.
What should I look out for regarding the suspension on my MERCEDES-BENZ 123 1976–1979?
The suspension components, particularly the rear subframe mounts and control arm bushes, are prone to deterioration due to age. Worn shocks and springs can also be an issue. These components must be in good condition for a WOF.
Are there any specific issues with the diesel engines in the MERCEDES-BENZ 123 1976–1979?
While the diesel engines are known for their durability, with age they can suffer from injector issues and fuel pump wear. Regular maintenance of the fuel system is crucial to prevent these problems.
What electrical problems are common in the MERCEDES-BENZ 123 1976–1979?
The electrical systems, though robust for their era, can develop faults due to age, brittle wiring, and corroded connections. Vacuum system leaks, which affect central locking and climate control, are also frequent.
What are the key WOF inspection points for a MERCEDES-BENZ 123 1976–1979 in New Zealand?
For a MERCEDES-BENZ 123, rust, especially in structural areas, is a critical WOF failure point. Suspension components (shocks, springs, bushes) must be in good condition. Brake lines and hoses need to be free from corrosion and leaks. Headlights and taillights must be fully functional, steering systems free from excessive play, and seatbelts operational.
Where can I get an OIL FILTER for my MERCEDES-BENZ 123 1976–1979 in NZ?
CARFIX stocks 207 SKUs for the MERCEDES-BENZ 123 1976–1979, including OIL FILTERs. You can find these parts on our website or by visiting a CARFIX store in New Zealand.