2023 model year · 165+ owner reports · Updated June 2026
According to Au7o's analysis of 165+ owner reports, the 2023 Peugeot 308 has 2 documented known issues, with 2 rated critical. The most serious are DPF Regeneration Failure ($200-$2,500 repair) and AdBlue System Fault ($300-$1,200 repair). Across all issues, repair costs range from $200 to $2,500. DIY maintenance guides at au7o.io.
On the 2007-2026 Peugeot 308, the 308 diesel models experience frequent DPF regeneration failures, especially in stop-start urban driving conditions. The additive-based DPF system requires periodic Eolys fluid refills that are often overlooked during servicing.
Top up the Eolys DPF additive fluid, perform a forced regeneration, and clean the DPF pressure sensor pipes. Replace the DPF if soot loading exceeds recoverable levels.
On the 2014-2026 Peugeot 308, the AdBlue (SCR) system on BlueHDi engines triggers false fault warnings and countdown timers to engine disable. The NOx sensor and AdBlue injector are primary failure points, often caused by crystallized fluid.
Replace the NOx sensor and clean the AdBlue injector. Flush the AdBlue tank if crystallization is present. Reset the SCR system counters with diagnostic equipment.
Don't see your problem? Describe your symptoms to get a diagnosis, or get a full repair guide.
According to Au7o's analysis of 165+ owner reports, the 2023-2023 Peugeot 308 has 2 documented issues. The most frequently reported are: DPF Regeneration Failure, AdBlue System Fault. Of these, 2 are rated critical and should be addressed promptly.
The 2023-2023 Peugeot 308 has 2 known issues documented across 165+ owner reports. 2 issues are rated critical: DPF Regeneration Failure and AdBlue System Fault. 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 Peugeot 308 issues range from $200 to $2,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, DPF Regeneration Failure, typically costs $200-$2,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
The 308 diesel models experience frequent DPF regeneration failures, especially in stop-start urban driving conditions. The additive-based DPF system requires periodic Eolys fluid refills that are often overlooked during servicing. Repairs typically run $200-$2,500. Severity: high.
The AdBlue (SCR) system on BlueHDi engines triggers false fault warnings and countdown timers to engine disable. The NOx sensor and AdBlue injector are primary failure points, often caused by crystallized fluid. Repairs typically run $300-$1,200. 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.
