Most common 2016 Mercedes-Benz SLK300 problems
Share of the 2 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Mercedes-Benz SLK300 complaints by model year
2016 Mercedes-Benz SLK300 recalls (4)
Communication
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2013-2017 vehicles due to a software fault that may cause the date and time for the emergency call system (eCall) to differ from the actual date and time, potentially relaying an inaccurate vehicle location.
Remedy: MBUSA has initiated an Over the Air (OTA) remote update. MBUSA will also notify owners, and dealers will check software for a successful OTA or update the communication module software as needed, free of charge.
Suspension › Rear
Mercedes-Benz USA, LLC (MBUSA) is recalling certain model year 2016 SLK300 vehicles manufactured January 19, 2016 to April 19, 2016. In the affected vehicles, improperly manufactured lock nuts may have been used on the rear wheel tie rod connection, and as a result, the rear wheel alignment may change and the rear axle may…
Remedy: MBUSA will notify owners, and dealers will replace the lock nuts on the rear tie rods, free of charge. The recall began on June 24, 2016. Owners may contact MBUSA customer service at 1-800-367-6372.
Electrical system › Wiring
Mercedes-Benz USA, LLC (MBUSA) is recalling certain model year 2016 SLK300 vehicles manufactured June 2, 2015 to July 14, 2015 and equipped with a nine-speed automatic transmission. The backup power supply for the ignition switch in the affected vehicles may not have been properly connected.
Remedy: MBUSA will notify owners, and dealers will correct the ignition switch wiring and perform a software update, free of charge. The recall began on May 9, 2016. Owners may contact MBUSA customer service at 1-800-367-6372.
Engine and engine cooling › Engine
Mercedes-Benz USA, LLC (Mercedes-Benz) is recalling certain model year 2015 CLA250, CLA250 4Matic, GLA250, GLA250 4Matic, and 2016 SLK300 roadster vehicles manufactured July 17, 2015, to August 31, 2015. The affected vehicles have intake or exhaust camshafts whose welds may fail and possibly cause engine damage.
Remedy: Mercedes-Benz will notify owners, and dealers will replace the affected camshafts, free of charge. Interim notices were mailed to owners on December 9, 2015. The recall began on December 23, 2015.
NHTSA defect investigations
Federal safety investigators have looked into a possible defect involving the 2016 Mercedes-Benz SLK300:
Desiccated Air Bag Inflator Rupture
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited.
2016 Mercedes-Benz SLK300 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 2.0L 4-cyl turbo | 9-speed automatic | RWD | 24 / 32 / 27 |
EPA ratings. Class: Sports car.
Frequently asked questions
Is the 2016 Mercedes-Benz SLK300 a good car?
That is a low number of complaints for a car on sale this long. So far owners have filed 2 complaints with NHTSA.
What is the most common problem with the 2016 Mercedes-Benz SLK300?
The body & structure — 1 complaint, 50% of all complaints for this model year, most often about body.
How many recalls does the 2016 Mercedes-Benz SLK300 have?
There are 4 recalls for the 2016 Mercedes-Benz SLK300, the most recent from November 1, 2019 (communication). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
At what mileage do 2016 Mercedes-Benz SLK300 problems happen?
The median mileage reported in complaints is about 25,000 miles; 100% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.