The Mercedes-Benz SL from the mid to late seventies/early eighties is a classic here in New Zealand. Frequently these were the vehicle of choice for Doctors and Lawyers, and even high-end Real Estate agents. It projected and image of success, and has aged very well over time. Many examples are still used as daily drivers, but more are now becoming the weekend cruisers we all dreamed about.
Common faults are: Rust. Soft top or hard top leaks (check around the seals). Wear in the steering and suspension bushes. Deterioration of rubber products such as fuel lines (fire risk). Electrical systems that have degraded over time.
WOF tips
Usual WOF suspects: Check the rust in the sills. Suspension. All lights working correctly and bright. Brake lines and brake performance. Check tyre wear and alignment.
About the Mercedes-Benz SL 280 SLC
The R107 SL chassis is a tough one. These vehicles came with many engine options from 2.8 litre inline six right through to a massive 5.0 Litre V8. In NZ, it is common to see the 3.5, 4.5 versions with a few six-cylinder versions about as well. The automatic transmission is tough, being a Mercedes product, but watch for smooth shifting. Many imported cars have been clocking for mileage so keep an eye out for signs of wear that don't match the odometer. Rust can be an issue on these so watch the sills, around the windscreen and under the boot floor.
Questions owners ask
What are the common rust spots I should check on a MERCEDES-BENZ SL (R107) from 1974-1981?
Rust is a significant concern on these R107 SL models. You should thoroughly inspect the sills, around the windscreen, and under the boot floor for any signs of corrosion.
Are there any specific WOF issues I should be aware of for my 1974-1981 MERCEDES-BENZ SL?
For your WOF, pay close attention to rust in the sills, the condition of the suspension, ensuring all lights are working correctly and are bright, checking brake lines and performance, and inspecting tyre wear and alignment. Electrical systems can also degrade over time, so ensure all electrical components are functioning as expected.
What common mechanical issues should I look out for when buying a MERCEDES-BENZ SL (R107) in New Zealand?
Beyond rust, common issues include leaks from the soft top or hard top (check seals), wear in the steering and suspension bushes, and deterioration of rubber products like fuel lines, which can pose a fire risk. While the automatic transmission is generally tough, watch for smooth shifting as some imported cars may have clocked mileage.
Where can I get replacement fuel lines or other rubber components for my MERCEDES-BENZ SL 1974–1981 in NZ?
CARFIX stocks 189 SKUs for the MERCEDES-BENZ SL 1974–1981. You can find various parts, including essential rubber components like fuel lines, to address common deterioration issues and mitigate fire risks.
What engine options were available for the MERCEDES-BENZ SL (R107) and which are common in NZ?
The R107 SL chassis came with many engine options, from 2.8 litre inline sixes to 5.0 Litre V8s. In New Zealand, it's common to see the 3.5 and 4.5 litre V8 versions, with a few six-cylinder models also present.
How often should I service my MERCEDES-BENZ SL 1974–1981?
The recommended service interval for your MERCEDES-BENZ SL 1974–1981 is every 10,000km.