The Mercedes Sl65 Amg. Just the name evokes images of power, luxury, and a certain kind of automotive exclusivity. When I first acquired this beast, the plan was simple: unleash the V12 fury as a year-round daily driver. However, like many ambitious plans involving high-performance machines, reality has had a few curveballs in store.
After getting the SL65 AMG up on ramps at @jhd_ltd back in October, a surprising discovery was made. The undercarriage was unbelievably clean for a car that had clocked 50,000 miles. This revelation sparked a change of heart. Exposing such a rare and special machine to a harsh Scottish winter, where salt-covered roads are the norm for months, suddenly felt like automotive sacrilege.
Protecting a Rare Breed: Winter Storage for the SL65 AMG
The decision was made: the SL65 AMG would hibernate for the winter, tucked away safely until spring. A practical, if less glamorous, Fiat Panda 100hp was enlisted for winter duties. This seemed like a sensible plan, safeguarding the Mercedes from the elements and preserving its remarkably well-maintained condition.
Chasing Gremlins: The Ongoing SL65 AMG Maintenance Journey
However, even in hibernation, the SL65 AMG saga continues. As previously reported, the initial weeks of ownership involved over £1000 in maintenance. The V12 engine is currently back at @jhd_ltd, undergoing further investigation to pinpoint the cause of an intermittent power loss and occasional random stalling. These frustrating issues have been an unwelcome companion throughout the ownership experience thus far.
Initial troubleshooting, guided by online forums, led to a full spark plug replacement (all 24!) and an upgrade of the intercooler pump. The power loss felt suspiciously like heat soak, suggesting inadequate turbo boost in certain conditions. The intercooler pump upgrade seemed like a promising fix. However, upon removing the front bumper, it was discovered that the car already had the recommended Bosch upgraded pump installed. Back to square one.
A Breakthrough at Last? Vacuum Leaks and Diagnostic Clues
Jamie at @jhd_ltd, however, is a seasoned expert and believes he may be closing in on the solution. Damaged vacuum pipes have been identified, and the diagnostic system indicates a very rich running condition. There’s a strong sense of optimism that these findings are key to resolving the mystery. The previous owner had apparently sought help from a Mercedes main dealer on two separate occasions, without success. The hope is that @jhd_ltd can crack the code and that both the power loss and stalling issues are linked and solvable with a single fix.
Routine Maintenance and Aesthetic Tweaks
Beyond the engine diagnostics, a knocking ball joint is also being replaced, and the air conditioning is being re-gassed – essential maintenance for a car of this age and caliber. Looking ahead, wheel refurbishment is on the agenda. The current black split-rims are undeniably stylish, but a change to anthracite is being considered – a personal preference for a slightly different aesthetic.
Temptation and Loyalty: Why the SL65 AMG Remains
Owning a 16-year-old twin-turbo V12 as a daily driver, or even a cherished weekend car, is certainly a unique experience. These machines are magnificent when running flawlessly, but they can also be delicate and demand considerable financial commitment for maintenance. Just recently, the thought of swapping the SL65 AMG for a more ‘sensible’ 997.2 Turbo S crossed my mind.
However, the team at RUSH provided a valuable perspective. While a 997.2 Turbo S would undoubtedly be incredibly capable and more user-friendly, it simply wouldn’t possess the same level of sheer drama and specialness as the SL65 AMG. And they are right. So, even tucked away for the winter and still presenting maintenance challenges, the Mercedes SL65 AMG retains its allure and its place in the garage. The journey continues, and the anticipation of unleashing the V12 properly in the spring, hopefully with all gremlins banished, remains strong.
