2021 model year · 55+ owner reports · Updated August 2026
According to Au7o's analysis of 55+ owner reports, the 2021 Renault Kadjar has 1 documented issue, with 1 rated critical. The most serious is DPF Regeneration Failure ($200-$2,000 repair). Across all issues with published estimates, repair costs range from $200 to $2,000. DIY maintenance guides at au7o.io.
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According to Au7o's analysis of 55+ owner reports, the 2021 Renault Kadjar has 1 documented issue. The documented issue is: DPF Regeneration Failure. Of these, 1 is rated critical and should be addressed promptly.
The 2021 Renault Kadjar has 1 known issue documented across 55+ owner reports. 1 issue is rated critical: DPF Regeneration Failure. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
Repair costs for known Renault Kadjar issues range from $200 to $2,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, DPF Regeneration Failure, typically costs $200-$2,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
The Kadjar diesel models experience frequent DPF regeneration failures, particularly in vehicles used primarily for short urban commutes. The regeneration process requires sustained load that urban driving cannot provide. Repairs typically run $200-$2,000. Severity: high.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.
