Fendt DEF Sensor Investigation

Migliaccio & Rathod LLP is investigating reports that certain Fendt 900 and 1000 Vario tractors experience premature failures of DEF quality sensors that can cause reduced engine performance or unexpected shutdowns.

What Consumers Report

Owners report:

  • DEF system warning messages.
  • Sudden engine derates.
  • Dealer diagnoses requiring DEF sensor replacement.
  • Expensive repairs despite relatively low operating hours.
  • Repeat failures involving emissions components.
  • Lost field time during critical agricultural operations.

Why Consumers Should Be Concerned

Agricultural equipment is designed to operate reliably under demanding conditions. If Fendt DEF quality sensors fail prematurely because of an underlying design issue, owners may experience repeated repair costs and significant operational downtime despite proper maintenance.

Potential Claims May Include

  • Product defect
  • Design defect
  • Breach of express warranty
  • Breach of implied warranty
  • Magnuson-Moss Warranty Act violations
  • Consumer protection violations

Signs You May Be Affected

You may be affected if:

  • You own a Fendt 900 or 1000 Vario tractor.
  • Your tractor experienced DEF sensor failures.
  • Your equipment entered limp mode.
  • You paid for repeated emissions-system repairs.
  • Your operations were delayed because of unexpected breakdowns.

If you have encountered these issues, we would like to hear from you. Please complete the contact form on this page, send us an email at [email protected], or give us a call at (202) 470-3520.

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