TRAVELING ON I-5 IN STOP AND GO TRAFFIC 0- 60 MPH WHEN TRANSMISSION STARTED SHIFTING ROUGHLY. IT THEN SHIFTED TO NEUTRAL AND WOULD NOT RESPOND TO SHIFTER INPUTS. I WAS IN THE SECOND LANE FROM THE RIGHT DOING 10 OR 15 MPH. I WAS ABLE TO FORCE MY WAY INTO THE RIGHT LANE AND OFF TO THE SHOULDER. I PUT THE TRANSMISSION IN SPORT AND PADDLE SHIFTER MODE WITH NO RESPONSE FROM THE SHIFT SELECTOR. THINKING…
2013 mercedes-benz SL-Class powertrain problems
moderate 4 complaints filed with NHTSA · avg repair $2,500
Complaints
4
Recalls
0
Crashes
0
Avg fix
$2,500
What owners are reporting 4 most recent
THE CAR SUDDENLY SLOW DOWN IN HIGHWAY GOES TO LIMP MODE FOR EXAMPLE FROM 69 TO 35 MILES IS VERY DANGEROUS I HAVE TO GET OFF THE HIGHWAY
Started the vehicle and used the gear selector to shift to Drive. Car did not go into gear. Towed to dealer. Dealer found faulty “ism module.” Apparently a very common issue with these cars. So common that the part is in an “indefinite back order.” The replacement part is also revised because Mercedes knows there was a manufacturer defect with the existing part. I am being charged more than $1600…
TL* THE CONTACT OWNS A 2013 MERCEDES BENZ SL550. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 40 MPH, THE PADDLE SHIFTERS WERE OPERATED AND THE CONNECTOR PLATE FAILED WITHOUT WARNING. THE CONTACT MENTIONED THAT THE VEHICLE FAILED TO ACCELERATE. ON ANOTHER OCCASION THE CONTACT STATED THAT WHILE COMING TO A COMPLETE STOP, THE VEHICLE LURCHED FORWARD WITHOUT WARNING. THE VEHICLE WAS TAKEN TO A…
Common questions
How serious is the powertrain problem on the 2013 mercedes-benz SL-Class?
It's a documented issue but not catastrophic. 4 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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