While driving on an interstate highway, I received a yellow "48V Battery malfunction" notice. Because this battery had failed before, I had read on internet forums that the car could just stop working, so I took the next exit (about 3-4 miles). At the top of the ramp, I had a red "Battery Malfunction" (red=stop driving); then, within 15 seconds the car had no power and gave me a critical "engin…
2019 Mercedes-Benz CLS-Class electrical problems
moderate 4 complaints filed with NHTSA · avg repair $850
Complaints
4
Recalls
0
Crashes
0
Avg fix
$850
What owners are reporting 4 most recent
The contact owns a 2019 Mercedes-Benz CLS450. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to pull over to the shoulder of the roadway, where the failure persisted; however, the contact was able to continue driving to the destination at slow speeds. No warning lights were illuminated. The vehicle was taken to the d…
My car started shaking and after putting it on the computer it was an electrical wiring harness issue. I was told it will be 6 k to replace both harnesses. It’s been 8 months and they just received the part. The service tech told me that these cars have this issue due to the position of the harnesses being to close to the exhaust. It dries out the wiring. I went to the Mercedes forum and found num…
I PURCHASED A NEW MERCEDES CLS53 2019. THERE APPEARS TO BE AN ON-GOING ISSUE WITH THE STARTER BATTERY. WITHIN 60 DAYS OF THE PURCHASE, THE ORIGINAL STARTER BATTERY REQUIRED A REPLACEMENT BATTERY. IN ADDITION, THE CAR DASHBOARD AND THE MERCEDES ME APPLICATION CONTINUE TO REFLECT THIS ISSUE.
Common questions
How serious is the electrical problem on the 2019 Mercedes-Benz CLS-Class?
It's a documented issue but not catastrophic. 4 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical 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 $850 for electrical 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 electrical?
No active recalls currently cover electrical 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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