This page covers 4 recalls and EPA fuel economy for the 2016 Mercedes-Benz Slk300.
27 mpg combined
8.7 L/100km
Two Seaters
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted.
The 2016 Mercedes-Benz SLK300 has 4 recalls, the most serious involving rear suspension lock nuts that can allow the rear axle to steer independently, sharply raising the risk of losing control of the vehicle.
A camshaft weld failure in the engine is a second concern of similar seriousness: if the weld on an intake or exhaust camshaft lets go, the resulting engine damage can cause a stall while driving. There is also a wiring issue specific to nine-speed automatic transmission models, where the backup power supply for the ignition switch may not be properly connected. If the primary power supply fails while the vehicle is in motion, there is no automatic way to hold the car in place, and the driver must keep a foot on the brake pedal to prevent it from rolling. Rounding out the list, a software fault in the emergency call system can report the wrong date, time, and location to emergency responders if activated, potentially sending help to the wrong place after a crash.
At a glance
What can fail
A software error causes the eCall emergency system's date and time to be incorrect, which may result in an inaccurate vehicle location being sent during an emergency call.
What the fix does
Mercedes-Benz will send a remote software update to your vehicle. Dealers will verify the update worked or install a new communication module software at no cost.
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Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Improperly manufactured lock nuts on the rear wheel tie rod connection may loosen, causing the rear wheel alignment to shift and the rear axle to steer independently.
What the fix does
Dealers will replace the lock nuts on the rear tie rods at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The backup power supply for the ignition switch may not be properly connected. If the main battery loses power while driving, you won't be able to shift the transmission to Park or engage the electric parking brake.
What the fix does
Dealers will correct the ignition switch wiring and perform a software update at no charge.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The intake or exhaust camshafts have welds that may fail, potentially causing engine damage.
What the fix does
Dealers will replace the affected camshafts at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
