The Mercedes-Benz W126 S-Class, produced between 1979 and 1991, captures the essence of opulence and masterful engineering. In particular, the 1985-1987 models have become treasured classics, skillfully blending comfort, sturdiness, and timeless elegance. Whether you're gliding down the highway or navigating through city streets, the W126 promises an experience that transcends ordinary driving. However, like any beloved classic, it comes with its own set of intricacies that every owner must understand.
Common problems on higher mileage W126 S-Classes include: rust (especially around the wheel arches, sills, and under the windscreen), wear in the suspension components (ball joints, control arm bushings), issues with the climate control system (vacuum leaks, worn actuators), and potential problems with the automatic transmission (delayed shifting, slipping). Engine issues such as oil leaks from valve cover and head gaskets are also commonplace. Fuel injection systems, particularly the older CIS systems, can become problematic with age.
When taking a W126 for a WOF, pay special attention to: rust in critical structural areas, condition of the tyres and brakes (including brake lines), operation of all lights, condition of the suspension components (play in the ball joints, condition of the shock absorbers), and exhaust system leaks. The proper operation of safety features like seatbelts is also checked.
During the W126 era, Mercedes-Benz set the bar high for automotive luxury and safety, making these cars famous for their smooth ride, even on New Zealand's diverse road conditions. Under the hood, options from reliable inline-sixes to powerful V8s catered to various driving preferences, with fuel-injected models significantly more common than their carbureted predecessors. Owners must pay close attention to maintenance to keep these beauty off the road. The cooling system requires careful inspections around the 150,000km mark; components such as the water pump, thermostat, and radiator hoses should all be checked. [This naturally links to /shop/cooling]
Moreover, the braking system indicates a need for regular servicing. Replacement of brake pads and rotors is crucial due to wear from everyday driving. We offer complete rear and front brake service to ensure you're always in control on the road. [See our service packs for brake maintenance]. Owners also need to monitor the filtration system; regularly replacing air filters contributes to your engine's longevity. [Visit /shop/filtration for your filter needs]. The construction quality of the W126 means that while these vehicles are built to last, the interior elements - such as leather and wood trim - will naturally age over time, requiring routine upkeep. Investing in proper maintenance ensures a seamless ownership experience.