Mercedes SL43R Lemon Law Case Study
Five Repair Visits for Recurring Engine Misfires on a Nearly New Mercedes SL43R
Our client purchased a new Mercedes SL43R from Mercedes-Benz of Cutler Bay, LLC in Florida. Within months of purchase, the vehicle developed a recurring engine misfire condition — diagnostic code P030001 (combustion misfire detected) — that persisted across five separate repair visits despite replacement of spark plugs, ignition coils, and all fuel injectors. The check engine light returned even after the most recent repair.
Documented Repair Visits
May 19 – June 4, 2025 (16 days)
Check engine light was on. Code P030001 (combustion misfire) was found. A test drive confirmed misfires on cylinders #3 and #4. Spark plugs and ignition coils were inspected, tested, and swapped. After another drive, the misfire returned only on cylinder #4. Further charge air system inspection was performed.
May 29 – June 4, 2025 (overlap/continuation)
Check engine light returned. Technicians performed diagnostics, checked power supply and engine. Fuel pressure and internal sealing were checked, spark plugs were replaced, and compression pressure was measured. Cylinders were inspected for leaks.
August 14–19, 2025 (5 days)
Check engine light returned. Technicians replaced all spark plugs and all fuel injectors. Fuel pressure and internal sealing were re-checked.
September 29 – October 7, 2025 (8 days)
Fault codes showed engine misfires again. Cylinder #4 had a misfire and a fouled spark plug. No leaks found after guided test and smoke check. Spark plug in cylinder #4 was replaced. A 12-volt battery concern with slow crank was also diagnosed.
October 28, 2025 – Present (ongoing)
The check engine light returned when the vehicle accelerates. Repair ongoing at time of case filing.
Why This Mercedes SL43R Qualified as a Lemon
Florida's Lemon Law (Chapter 681, Florida Statutes) sets specific thresholds that entitle a consumer to a buyback or replacement. This case satisfied multiple criteria:
- Engine: Required multiple repair attempts without permanent resolution.
- Electrical: Required multiple repair attempts without permanent resolution.
- Magnuson-Moss Warranty Act eligible: Federal warranty protection provided additional remedies.
$148,749 Recovered for Our Client
Case Summary
- Vehicle purchased: December 9, 2023
- Odometer at delivery: 50 miles
- Mileage at time of claim: 4,497 miles
- Documented repair visits: 5
- Settlement amount: $148,749 (Buyback)
Easy Lemon negotiated a full vehicle buyback of $148,749, returning our client's equity and terminating their obligation for the defective vehicle. This claim was filed against Mercedes-Benz.
Results may vary. Prior outcomes do not guarantee a similar result. Each case is unique and depends on its specific facts and applicable law. Attorney advertising. Easy Lemon® by RockPoint Law P.C.
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Attorney on Record
Liam Jones, Esq.
Attorney — Easy Lemon by RockPoint Law P.C.
Attorney at Easy Lemon by RockPoint Law P.C., specializing in lemon law claims across all 50 states. Liam has successfully resolved numerous lemon law cases against leading manufacturers for consumers nationwide.
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