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2017 Peugeot 508 Problems: 2 Known Issues

2017 model year · 65+ owner reports · Updated August 2026

According to Au7o's analysis of 65+ owner reports, the 2017 Peugeot 508 has 2 documented known issues, with 2 rated critical. The most serious are Diesel DPF Regeneration Issues ($300-$2,500 repair) and 1.6 THP (EP6) Timing Chain Stretch and Soft Chain Tensioner — Cold-Start Rattle ($900-$1,600 repair). Across all issues with published estimates, repair costs range from $300 to $2,500. DIY maintenance guides at au7o.io.

Frequently Asked Questions

What are the most common Peugeot 508 problems?

According to Au7o's analysis of 65+ owner reports, the 2017 Peugeot 508 has 2 documented issues. The most frequently reported are: Diesel DPF Regeneration Issues, 1.6 THP (EP6) Timing Chain Stretch and Soft Chain Tensioner — Cold-Start Rattle. Of these, 2 are rated critical and should be addressed promptly.

Is the Peugeot 508 reliable?

The 2017 Peugeot 508 has 2 known issues documented across 65+ owner reports. 2 issues are rated critical: Diesel DPF Regeneration Issues 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 $300 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 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 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.

2017 Peugeot 508 Problems: 2 Known Issues

All 2 Known Issues

2011-2026 Peugeot 508: Diesel DPF Regeneration Issues#

Common Symptoms

How to Fix

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2011-2018 Peugeot 508: 1.6 THP (EP6) Timing Chain Stretch and Soft Chain Tensioner — Cold-Start Rattle#