What goes wrong, what it costs, and what to check before you buy a used Peugeot 405.
The Peugeot 405 occupies a niche position on the UK market.
We track 5 known issues across the Peugeot 405 range, including 1 rated as safety-critical. Knowing which variants and configurations to approach with caution can save you from expensive surprises after purchase.
Found a Peugeot 405? Enter the reg to see which of our 5 known issues apply to that exact car, plus full MOT history and mileage checks.
405 (1987–1997) — Engine options included the 1.9 TD. Our database flags 5 known issues on this generation, 1 of which are rated as safety-critical. The most significant concern is Subframe mounting point structural failure (£800–£1,500 to address).
The body structure around suspension component mounting points deteriorates through corrosion on high-mileage examples. This affects the structural integrity of areas where subframe, spring, and suspension components attach to the body shell. This represents a fundamental structural weakness that compromises vehicle safety.
Structural failure around suspension mounting points creates an immediate safety risk. The suspension cannot be properly located, affecting handling and braking. Repair requires specialist bodywork including cutting out corroded sections and welding in new metal. Total repair costs often exceed the vehicle's value.
Inspect the wheel arches, sills, jacking points and door bottoms carefully. Press gently on sills to check for soft spots. Look underneath for corrosion on structural components. Check the MOT history for corrosion-related advisories or failures.
The rubber gaiters protecting the steering rack deteriorate with age, allowing dirt and moisture to contaminate the rack mechanism. MOT data shows this model fails at up to 34.3x the fleet average for missing or damaged steering rack gaiters, with the highest failure rates above 120,000 miles. Once compromised, the steering rack internal seals fail rapidly, requiring expensive replacement of the entire rack assembly.
Failed gaiters allow contamination of the steering rack, leading to internal seal failure and loss of power steering assistance. Complete rack replacement is typically required once internal damage occurs. The car remains drivable but steering effort increases significantly, particularly during parking manoeuvres.
During the test drive, check the steering for excessive play, vibration or pulling to one side. Listen for groaning or whining when turning the wheel at low speed. Power steering fluid level and condition should be checked on hydraulic systems.
The 405 suffers from widespread structural corrosion affecting overall body rigidity. This is separate from cosmetic rust and affects the fundamental structural integrity of the vehicle. Areas around the rear axle mounting points and sill structures are particularly vulnerable on this model.
Structural corrosion compromises the vehicle's crash protection and can lead to MOT failure. Repair requires cutting out affected areas and welding in new metal. On high-mileage examples, repair costs typically exceed the vehicle's market value, making the car economically beyond repair.
Inspect the wheel arches, sills, jacking points and door bottoms carefully. Press gently on sills to check for soft spots. Look underneath for corrosion on structural components. Check the MOT history for corrosion-related advisories or failures.
The brake system develops imbalance and binding issues on high-mileage examples. MOT data shows this model fails at 10.7x the fleet average for brake imbalance and 3.8x the fleet average for binding brakes. This typically results from seized brake caliper pistons and deteriorated flexible brake hoses that restrict fluid flow. The combination creates uneven braking forces that compromise vehicle control during braking.
Brake imbalance causes the vehicle to pull dangerously to one side under braking. Binding brakes lead to premature pad and disc wear, reduced fuel economy, and potential brake fade. Complete brake system overhaul is typically required, including calipers, hoses, fluid, pads, and often discs.
Check brake disc condition for lipping or scoring. Test braking at moderate speed for pulling to one side or vibration through the steering wheel. Review MOT advisories for brake-related items.
The rubber bushes that mount the rear shock absorbers deteriorate with age and mileage. MOT data shows this model fails at 5.1x the fleet average for shock absorber bush wear, with failures concentrated above 120,000 miles. This affects ride quality and handling precision but does not represent a safety risk. The rear suspension design on the 405 places particular stress on these mounting bushes.
Worn shock absorber bushes reduce ride quality and handling precision but do not create a safety risk. The vehicle remains drivable and roadworthy. Replacement involves removing the rear shock absorbers and pressing in new bushes, which is labour-intensive but straightforward.
Listen for knocking, clunking or rattling over bumps during the test drive. Inspect the underside for corroded or cracked suspension components. Check the MOT history for suspension-related advisories, which often predict future failures.
For the full breakdown of all 5 tracked issues with repair costs, see the Peugeot 405 common problems page.
Based on 2k real DVSA MOT tests, the Peugeot 405 fails more often than average on several items. The biggest outlier is headlight fault at 147x the fleet average, followed by steering rack wear (34x).
When viewing a specific car, check its MOT history for recurring advisories in these categories. See the full Peugeot 405 MOT failure breakdown for data at every mileage point.
Routine servicing (oil and filter change every 6k miles) typically costs £45–£65 at an independent garage.
The bigger-ticket items to budget for include timing belt and tensioner (£280–£380).
See the full Peugeot 405 service schedule for every interval and cost breakdown.
The Peugeot 405 has some well-documented weak points, including 1 safety-critical issue that demand careful checking. The right example, properly maintained, can still be a sound purchase — but cutting corners on the pre-purchase inspection is not advisable.
Before committing, check the car's full MOT history, verify the service record is complete, and if possible arrange a specialist inspection. Enter any registration into our free report to see the complete picture.
Get Car Wise maintains a database of known mechanical issues for every popular car on UK roads, tracking the faults that owners, specialists and DVSA data reveal.
When you run a report on a specific Peugeot 405, we cross-reference the exact variant, engine and age against our database of 5 known issues. Combined with full MOT history analysis, mileage verification and DVLA data, you get a complete picture before viewing.
Enter the registration for MOT history, mileage verification, known faults for that exact variant, and a Get Car Wise Score.
This guide was compiled from independent expert reviews, DVSA MOT data, specialist workshops and our own database of 5 known Peugeot 405 issues. We are not affiliated with any source listed.