Mercedes-Benz Sl Years to AvoidThe weakest years — and the one you should buy instead
After reviewing every Mercedes-Benz Sl we've analyzed (2 years), these are the 1 weakest. Each one has either an absolute low AutoScore, chronic repair issues, or unusually high ownership costs relative to other Sl years.
Proceed with caution
1999 Mercedes-Benz Sl
The 1999 Mercedes-Benz SL offers iconic styling and a robust V8 engine, but its complex hydraulic soft top and aging electrical systems demand significant financial commitment. While the underlying mechanicals are solid, be prepared for substantial repair bills and diligent maintenance to keep this classic luxury roadster running smoothly.
Why this year scores low
The 12-15 hydraulic cylinders that operate the soft top and roll bar are notorious for leaking as their seals degrade over time, leading to non-functional tops and oil leaks in the trunk. This is almost a guaranteed failure point on un-restored examples.
The 722.6 five-speed automatic transmission is generally robust, but the internal electronic conductor plate is prone to failure, causing erratic shifting, 'limp home' mode, or a complete loss of gear engagement.
Various electrical components, including the instrument cluster display, climate control unit, window regulators, and control modules (such as the soft top controller, SRS, or ABS/ASR), are prone to failure due to age and heat.
Printed Owner's Guidebook
The 2015 Mercedes-Benz Sl Owner's Guidebook
Reliability report · service & fuel logs · 13 chapters · free US shipping
Autojunket OSC · OSC Transfer
Sell your car for what it's worth.
Log every service. Sell with a signed PDF. Every receipt, mileage-verified, in the buyer's hands.
Recommended Products
Quality parts and tools for your vehicle
As an Amazon Associate I earn from qualifying purchases.