What are the most common Peugeot 508 problems?
According to Au7o's analysis of 65+ owner reports, the 2011-2026 Peugeot 508 has 4 documented issues. The most frequently reported are: Diesel DPF Regeneration Issues, Plug-In Hybrid Traction Battery Overheats — Thermal Runaway and Fire Recall, 1.6 THP (EP6) Timing Chain Stretch and Soft Chain Tensioner — Cold-Start Rattle. Of these, 3 are rated critical and should be addressed promptly.
Is the Peugeot 508 reliable?
The 2011-2026 Peugeot 508 has 4 known issues documented across 65+ owner reports. 3 issues are rated critical: Diesel DPF Regeneration Issues and Plug-In Hybrid Traction Battery Overheats — Thermal Runaway and Fire Recall and 1.6 THP (EP6) Timing Chain Stretch and Soft Chain Tensioner — Cold-Start Rattle. 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.
How much does it cost to fix common Peugeot 508 problems?
Repair costs for known Peugeot 508 issues range from $0 to $2,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Diesel DPF Regeneration Issues, typically costs $300-$2,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What year Peugeot 508 is the most reliable?
Reliability varies across model years of the Peugeot 508. Based on documented issues, problems are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 2011-2026 Peugeot 508 with 4 documented issues documented across 65+ owner reports.
What is the 2011-2026 Peugeot 508 Diesel DPF Regeneration Issues?
The 508 diesel suffers from DPF regeneration failures, particularly on first-generation models with the additive DPF system. Frequent short journeys prevent the regeneration cycle from completing, leading to progressive soot buildup. Repairs typically run $300-$2,500. Severity: high.
What is the 2019-2022 Peugeot 508 Plug-In Hybrid Traction Battery Overheats — Thermal Runaway and Fire Recall?
Second-generation 508 plug-in hybrids built between 12 March 2019 and 8 December 2022 are subject to a serious EU recall (Stellantis campaign codes MEH and MEJ, RAPEX alerts 28/2023 and 30/2023, references A12/01619/23 and A12/01741/23, published July 2023) covering 43,798 vehicl… Repairs typically run $0-$0. Severity: high.
What is the 2011-2018 Peugeot 508 1.6 THP (EP6) Timing Chain Stretch and Soft Chain Tensioner — Cold-Start Rattle?
The 508 I's 1.6 THP petrol is the PSA/BMW-developed EP6 'Prince' engine, whose timing chain and tensioner are a documented weak point. The root problem is not the chain itself but an over-soft hydraulic chain tensioner that bleeds off oil pressure when the engine is shut down; on… Repairs typically run $900-$1,600. Severity: high.
What is the 2018-2022 Peugeot 508 BlueHDi AdBlue Injector Can Fail With No Dashboard Warning — Recall MF6 / MYC?
An engine control unit software defect on BlueHDi diesel 508s stops the malfunction indicator lamp being commanded on when the AdBlue urea injector fails. The SCR system stops dosing and NOx emissions rise above the legal limit, but the driver sees nothing on the dash until the c… Repairs typically run $0-$0. Severity: medium.
