The hot hatch that made France proud
The Peugeot 306 was a benchmark small hatchback of the 1990s, renowned for its outstanding ride and handling that embarrassed more expensive rivals. It attracts enthusiasts and classic car fans today, especially the GTI-6 and rare Rallye variants. Affordable to buy but increasingly valued as a future classic French hot hatch.
We track 5 known issues across the Peugeot 306 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 306? Enter the reg to see which of our 5 known issues apply to that exact car, plus full MOT history and mileage checks.
306 (1993–2002) — Petrol options included the 1.4 8v, 1.6 8v, 1.8 16v, 2.0 16v, with 1.9 D, 1.9 TD, 2.0 HDi on the diesel side. Our database flags 5 known issues on this generation, 1 of which are rated as safety-critical. The most significant concern is Brake hose deterioration and failure (£200–£350 to address).
Flexible brake hoses on the 306 deteriorate at an exceptional rate compared to other vehicles of this era. The MOT data shows failure rates over 130 times the national fleet average on some variants. The rubber compounds used appear prone to cracking, chafing and internal breakdown, which can cause sudden brake fluid loss or restricted brake pressure. This affects all engine variants and becomes critical on higher mileage examples where hoses may be original.
A failed brake hose causes immediate and total brake failure on the affected circuit. On older brake systems this can mean loss of front or rear braking entirely. Complete brake hose replacement costs £200-400 but is essential safety work. The car is unsafe to drive with deteriorated brake hoses.
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 gaiters protecting the steering rack and ball joints fail at over 40 times the fleet average according to MOT data. Once these protective boots are torn or missing, dirt and moisture contaminate the steering components causing rapid wear of ball joints and steering rack internals. This is particularly problematic on the 306 due to the design and rubber compound used.
Failed gaiters allow rapid contamination and wear of steering components. Ball joint wear creates dangerous steering looseness and potential wheel detachment. Steering rack contamination causes progressive steering stiffness and eventual rack replacement. Individual ball joint replacement costs £80-150 per side, rack replacement £400-800.
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.
Petrol variants show emissions failures at up to This exceptionally high rate suggests systematic problems with the catalytic converter, lambda sensors, or engine management system on these engines. The 306 petrol engines use early emissions control technology that deteriorates more rapidly than modern equivalents.
Emissions failures result in automatic MOT failure and legal prohibition from driving on public roads. Catalytic converter replacement costs £300-800 depending on variant. Lambda sensor replacement costs £150-300. Multiple components may need replacement simultaneously, and diagnosis requires specialist equipment.
Check for any engine warning lights on the dashboard. Ask about the car's MOT emissions history — repeated failures suggest underlying issues. A pre-purchase diagnostic scan is especially worthwhile to check for stored emissions fault codes.
MOT data shows brake imbalance failures at over 25 times the fleet average, indicating widespread brake caliper seizure problems. The 306 uses single-piston sliding calipers that are prone to corrosion of the slider pins and piston seals, causing uneven braking forces between wheels on the same axle. This creates dangerous braking imbalance and premature pad wear.
Seized calipers cause dangerous braking imbalance, automatic MOT failure, and accelerated brake component wear. The affected brake may not release properly causing constant drag, overheating, and potential brake fire. Caliper overhaul costs £80-150 per side, replacement £120-200 per side including labour.
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 exhaust system fails at over 20 times the fleet average according to MOT data, with particularly high failure rates on younger vehicles suggesting poor corrosion resistance. The mild steel construction and mounting system design make the 306 exhaust system prone to premature rust-through and mounting bracket failure, especially at the flexible joint and rear silencer.
Exhaust leaks cause excessive noise, emissions failures at MOT, and potential carbon monoxide ingress into the cabin through the heating system. Complete system replacement typically costs £300-600 depending on how many sections need replacing. The car remains driveable but will fail MOT if noise levels exceed legal limits.
Check for any engine warning lights on the dashboard. Ask about the car's MOT emissions history — repeated failures suggest underlying issues. A pre-purchase diagnostic scan is especially worthwhile to check for stored emissions fault codes.
For the full breakdown of all 5 tracked issues with repair costs, see the Peugeot 306 common problems page.
Based on 36k real DVSA MOT tests, the Peugeot 306 fails more often than average on several items. The biggest outlier is light unit fault at 187x the fleet average, followed by load sensing valve seized or inoperative and ab... (167x).
When viewing a specific car, check its MOT history for recurring advisories in these categories. See the full Peugeot 306 MOT failure breakdown for data at every mileage point.
Routine servicing (oil and filter change every 6k miles) typically costs £80–£120 at an independent garage.
The bigger-ticket items to budget for include timing belt (£350–£500).
See the full Peugeot 306 service schedule for every interval and cost breakdown.
The Peugeot 306 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. Post-1997 Phase 2 and Phase 3 cars are the pick, with improved equipment levels and more refined interiors. For the GTI-6, the 1998-2000 models benefit from production maturity while retaining the same excellent mechanicals throughout. Avoid pre-1997 cars where possible due to worse corrosion and early engine issues.
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 306, 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 306 issues. We are not affiliated with any source listed.