The fourth-generation Mercedes-Benz SL (R230), produced from 2006 to 2012, is a sophisticated grand tourer that blends power and elegance. With its retractable hardtop, luxurious interior, and powerful engines, it aimed to deliver a quintessential Mercedes experience. However, like any complex machine, it's essential to be aware of its potential pitfalls, especially when considering one for New Zealand roads. This report focuses on the nuances of owning and maintaining a 2006-2012 SL in NZ, paying attention to our unique conditions and WOF requirements.
Common issues include failures of the Active Body Control (ABC) suspension system (if equipped), including pump failures, leaks in the hydraulic lines, and strut issues. The retractable hardtop can experience problems with the hydraulics, sensors, and motors. Electronic gremlins are not uncommon, affecting various systems like the COMAND infotainment system and driver aids. Oil leaks, particularly from the valve cover gaskets and rear main seal, are also common. Rust can be a concern, especially on imported vehicles, around the wheel arches, and underbody.
WOF tips
During a WOF inspection, pay close attention to the following: • Suspension: Check for leaks from the ABC suspension struts (if equipped) and ensure the system operates correctly (no sagging or warning lights). General suspension components like ball joints and bushings also need careful inspection. • Brakes: Ensure brake rotors are within thickness specifications. Check the condition of brake lines and hoses. • Tyres: Tyre wear is a standard check, but ensure tyres are correctly rated for the vehicle's performance capabilities. • Lights: Ensure all lights, including the retractable roof brake light, are functioning. • Rust: Check for rust, particularly around the wheel arches, sills, and underbody. This is especially important for imported vehicles. • Fluid Leaks: Evidence of excessive oil or fluid leaks will result in a WOF failure.
About the Mercedes-Benz SL 500
The 2006-2012 SL lineup offered a range of engine options, from the relatively frugal V6 to potent V8s and AMG's monstrous supercharged versions. Performance is plentiful across the range. Handling is good, but the SL is more about comfortable cruising than ultimate track performance. The electro-hydraulic retractable hardtop is a complex system and requires regular maintenance to prevent issues. Be sure to check for smooth operation and any signs of leaks. The Active Body Control (ABC) suspension system, available as an option, provides incredible ride quality and handling, but can be a costly area for repairs if neglected.
In New Zealand, the SL's luxurious features and inherent sophistication make it an appealing choice. However, its age means that careful inspection and preventative maintenance are crucial. Imported models from Japan and the UK are common, so pay close attention to rust, particularly in coastal areas.
Questions owners ask
What are some common problems I should look out for on a 2006-2012 Mercedes-Benz SL in New Zealand?
Common issues on the 2006-2012 Mercedes-Benz SL include problems with the Active Body Control (ABC) suspension system (if equipped), such as pump failures and leaks. The retractable hardtop can also experience hydraulic and sensor issues. Electronic problems affecting the COMAND system and driver aids are not uncommon. Oil leaks, especially from valve cover gaskets, and rust, particularly on imported vehicles, are also potential concerns.
I'm looking at an imported SL. What rust areas should I pay special attention to during a pre-purchase inspection?
For imported Mercedes-Benz SL models (2006-2012) in New Zealand, carefully inspect for rust around the wheel arches, sills, and underbody. Coastal areas can accelerate rust, so pay extra attention if the vehicle has spent time near the sea.
What should I check on the suspension of my Mercedes-Benz SL (2006-2012) for its WOF?
For a WOF inspection on your 2006-2012 Mercedes-Benz SL, check for leaks from the ABC suspension struts if your car is equipped with it. Ensure the system operates correctly, with no sagging or warning lights. Also, inspect general suspension components like ball joints and bushings. Brake rotors must be within thickness specifications, and brake lines and hoses should be in good condition.
Where can I get brake pads for my MERCEDES-BENZ SL 2006–2012 in NZ?
CARFIX stocks 244 SKUs for the MERCEDES-BENZ SL 2006–2012. You can find front brake pads under the 'BRAKE PADS FRONT' category and rear brake pads under the 'BRAKE PADS REAR' category on the CARFIX website.
How often should I service my 2006-2012 Mercedes-Benz SL?
The recommended service interval for the 2006-2012 Mercedes-Benz SL is every 15,000km. Regular servicing is crucial to prevent issues with the complex systems of the SL, such as the ABC suspension and retractable hardtop.
What are the key things to look for when inspecting the retractable hardtop on a 2006-2012 Mercedes-Benz SL?
When inspecting the retractable hardtop on a 2006-2012 Mercedes-Benz SL, check for smooth operation and any unusual noises. Look for signs of hydraulic leaks around the cylinders and lines. Ensure all sensors are functioning correctly, and that the roof locks securely in both the open and closed positions. A malfunctioning roof brake light is also a WOF failure point.
Is the Active Body Control (ABC) suspension worth the potential maintenance costs on a used Mercedes-Benz SL?
The Active Body Control (ABC) suspension on the 2006-2012 Mercedes-Benz SL provides exceptional ride quality and handling. However, it can be a costly system to repair if neglected. Potential issues include pump failures, leaks in the hydraulic lines, and strut problems. A thorough inspection is recommended before purchasing a vehicle with ABC.