These are issues documented for the Hyundai Sonata in general - things to check for, not a diagnosis of any particular car. Whether a specific car has one depends on its age, mileage, service history and how it was used.
Free Vehicle Check
Looking at one of these for sale? Check the exact vehicle free.
Enter the listing or vehicle details and AutoLytiQs will compare its price, specification and documented risks.
Engine · severity: Critical if outside recall coverage or the remedy was never applied - a real, regulator-documented engine-seizure risk. Free if genuinely still within unaddressed recall coverage. · confidence: 82/100 · 3 cited sources
ⓘ Not yet individually classified
Rough Repair Cost
Independent workshops typically charge R23 000-R44 000 for this, depending on exactly what's needed. The full independent-vs-dealer breakdown is in a full AutoLytiQs report.
What To Check
A bottom-end knock that grows with RPM is audible on a normal test drive, often most noticeable on cold start. A P1326 scan is quick, cheap, and worth doing on every Theta II-equipped vehicle regardless of whether a knock is currently audible.
Full documented findings available
Check a specific real listing for this vehicle and see the evidence behind every documented issue - one report, only R69, once:
Repair-cost estimate for 1 of 1 documented issue
Independent-vs-dealer cost comparison for 1 issue
Specific fault code to scan for
1 verified manufacturer TSB/recall reference you can check yourself
A recommended fix or negotiation point for that issue
A downloadable PDF report
No subscription · One-time payment · Instant access
What Does a Service Typically Cost?
Major service
R 2,300
Annual upkeep (estimated)
R 2,750
Brake job (pads/discs)
R 2,650
Filter kit
R 575
The major-service figure comes from South African service-cost sources for this model; the annual upkeep, brake job and filter kit figures are estimates scaled from it. Source: enginefinder.co.za's real, dedicated Hyundai Sonata page (R2,100-R2,549), midpoint used. Actual cost varies by workshop, region and the exact vehicle's condition; get a direct quote before budgeting around this.
This guide summarises documented, sourced findings for the Hyundai Sonata generally. It is not an assessment of any specific vehicle - mileage, service history and condition vary by example. A full AutoLytiQs™ report checks a specific listing for sale against this data plus a live South African market valuation, to tell you whether that exact vehicle is a good buy.
